Esco invt GD350A Series Product Manual
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Esco invt GD350A Series Product Manual

Frequency inverter
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Frequency inverter
GD350A Series
This operating instruction is to be read carefully and
kept at the place of installation of the device.

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Summary of Contents for Esco invt GD350A Series

  • Page 1 Product manual Frequency inverter GD350A Series This operating instruction is to be read carefully and kept at the place of installation of the device.
  • Page 2 GD350A series high-performance multifunction VFD Preface Thank you for choosing GD350A series variable-frequency drive (VFD). If not otherwise specified in this manual, the VFD always indicates GD350A series VFD, which is a high-performance multifunctional VFD that can drive both synchronous motors (SMs) and asynchronous motors (AMs) and supports torque control, speed control, and position control.

  • Page 3: Table Of Contents

    GD350A series high-performance multifunction VFD Contents Preface ............................i Contents ............................ii 1 Safety precautions ........................1 1.1 What this chapter contains ....................1 1.2 Safety definition ........................1 1.3 Warning symbols ......................... 1 1.4 Safety guidelines ......................... 2 2 Quick startup..........................5 2.1 What this chapter contains ....................
  • Page 4 GD350A series high-performance multifunction VFD 7.1 What this chapter contains ....................253 7.2 Indications of alarms and faults ..................253 7.3 Fault reset ........................253 7.4 Fault history ........................253 7.5 VFD faults and solutions ....................253 7.6 Analysis on common faults ....................262 7.7 Countermeasures on common interference ..............
  • Page 5 GD350A series high-performance multifunction VFD D.1 What this chapter contains ....................356 D.2 Wiring of peripheral accessories ..................356 D.3 Power supply ........................357 D.4 Cables ..........................358 D.5 Breaker and electromagnetic contactor ................362 D.6 Reactors ......................... 363 D.7 Filters ..........................365 D.8 Braking system .......................

  • Page 6: Safety Precautions

    GD350A series high-performance multifunction VFD 1 Safety precautions 1.1 What this chapter contains Read this manual carefully and follow all safety precautions before moving, installing, operating and servicing the VFD. If these safety precautions are ignored, physical injury or death may occur, or damage may occur to the equipment.

  • Page 7: Safety Guidelines

    GD350A series high-performance multifunction VFD Symbols Name Instruction Abbreviation symbols on the machine) after power off to prevent electric shock Read Read the operation manual before manual operating on the equipment Actions taken to ensure proper Note Note Note operation 1.4 Safety guidelines ...
  • Page 8 GD350A series high-performance multifunction VFD VFD and avoid physical injury or death. To ensure physical safety, the installation staff should take mechanical protective measures like wearing safety shoes and working uniforms  Protect the VFD against physical shock or vibration during delivery and installation. ...
  • Page 9 GD350A series high-performance multifunction VFD d) During operation, it is a must to ensure the permanent-magnet SM cannot run again by the action of external load; it is recommended to install effective external brake device or disconnect the direct electrical connection between permanent-magnet SM and the VFD.

  • Page 10: Quick Startup

    GD350A series high-performance multifunction VFD 2 Quick startup 2.1 What this chapter contains This chapter introduces the basic installation and commissioning rules that you need to follow to realize quick installation and commissioning. 2.2 Unpacking inspection Check the following after receiving the product. ...

  • Page 11: Installation Confirmation

    GD350A series high-performance multifunction VFD recommended that the VFD be used at the altitude higher than 5000m.  Check whether the humidity of the actual usage site exceeds 90% and condensation occurs. If yes, take additional protective measures.  Check whether the actual use site may be exposed to direct sunlight or may have the chance of ingress of foreign objects.
  • Page 12 GD350A series high-performance multifunction VFD direction is correct. If not, change the rotation direction by swapping any two phase wires of the motor.  Set all control parameters and then operate.

  • Page 13: Product Overview

    GD350A series high-performance multifunction VFD 3 Product overview 3.1 What this chapter contains This chapter mainly introduces the operation principles, product features, layouts, nameplates and model designation rules. 3.2 Basic principle The VFD is used to control asynchronous AC induction motors and permanent-magnet synchronous motors.
  • Page 14 GD350A series high-performance multifunction VFD （+） （-） Figure 3.1 Main circuit diagram for 015G/018P and lower models （+） （-） Figure 3.2 Main circuit diagram for 018G/022P–037G/045P （+） （-） Figure 3.3 Main circuit diagram for 045G/055P–110G/132P...

  • Page 15: Product Specifications

    GD350A series high-performance multifunction VFD （+） DC reactor （-） Figure 3.4 Main circuit diagram for 132G/160P and higher models Note: 132G/160P and higher models can be connected to external DC reactors. Before connection, take  off the copper bar between P1 and (+). 075G/090P and higher models can be connected to external braking units.
  • Page 16 GD350A series high-performance multifunction VFD Function description Specification control (SVC), and vector control with sensor feedback (FVC) performance Asynchronous motor (AM) and permanent magnetic Motor type synchronous motor (SM) Speed regulation For AM1: 1:200 (SVC); for SM1, 1:20 (SVC); 1:1000 ratio (FVC) Speed control...
  • Page 17 GD350A series high-performance multifunction VFD Function description Specification Analog output 1 input; AO1: 0–10V/0–20mA Four regular inputs; max. frequency: 1kHz; internal impedance: 3.3kΩ Digital input Two high-speed inputs; max. frequency: 50kHz; supporting quadrature encoder input; with speed measurement function One high-speed pulse output; max. frequency: 50kHz Digital output One Y terminal open collector output Two programmable relay outputs...

  • Page 18: Product Nameplate

    GD350A series high-performance multifunction VFD 3.4 Product nameplate Figure 3.5 Product nameplate Note: This is a nameplate example of a standard VFD product. The CE/TUV/IP20 marking on the top  right will be marked according to actual certification conditions. Scan the QR code at the bottom of the right to download mobile APP and operation manual. ...

  • Page 19: Product Ratings

    GD350A series high-performance multifunction VFD 3.6 Product ratings Constant torque Variable torque Output Input Output Output Input Output VFD model power current current power current current (kW) (kW) GD350A-1R5G/2R2P- GD350A-2R2G/003P-4 GD350A-004G/5R5P-4 13.5 19.5 12.5 GD350A-5R5G/7R5P- 19.5 GD350A-7R5G/011P-4 18.5 GD350A-011G/015P-4 GD350A-015G/018P-4 18.5 GD350A-018G/022P-4 18.5...

  • Page 20: Structure Diagram

    GD350A series high-performance multifunction VFD additional reactor. The rated output current is the output current corresponding to 380V output voltage.  Within the allowable input voltage range, the output current and power cannot exceed the rated  output current and power. 3.7 Structure diagram The VFD structure is shown in the following figure (using the 030G/037P VFD model as an example): Figure 3.7 Structure diagram...
  • Page 21 GD350A series high-performance multifunction VFD Item Description POWER indicator Indicator of the power supply. GD350A product series label See "Model designation code". -16-...

  • Page 22: Installation Guidelines

    GD350A series high-performance multifunction VFD 4 Installation guidelines 4.1 What this chapter contains This chapter introduces the mechanical and electrical installations of the VFD.  Only trained and qualified professionals are allowed to carry out the operations mentioned in this chapter. Please carry out operations according to instructions presented in Safety precautions.
  • Page 23 GD350A series high-performance multifunction VFD Environment Condition Condensation is not allowed;  The max RH cannot exceed 60% in the environment where there are  corrosive gases. Storage -30–+60°C temperature The installation site should meet the following requirements. Away from electromagnetic radiation sources; ...
  • Page 24 GD350A series high-performance multifunction VFD A. Vertical installation B. Horizontal installation C. Transverse installation Figure 4.1 Installation direction of the VFD 4.2.3 Installation mode There are three kinds of installation modes based on different VFD dimensions. Wall-mounting: suitable for 315G/355P and lower models ...
  • Page 25 GD350A series high-performance multifunction VFD 4.2.4 Single-unit installation Hot air Cold air Figure 4.3 Single-unit installation Note: The min. dimension of B and C is 100mm. 4.2.5 Multiple-unit installation Hot air Cold air Figure 4.4 Parallel installation Note: When you install VFDs in different sizes, align the top of each VFD before installation for the ...
  • Page 26 GD350A series high-performance multifunction VFD 4.2.6 Vertical installation Windshield Cold Cold Windshield Figure 4.5 Vertical installation Note: During vertical installation, you must install windshield, otherwise, the VFD will experience -21-...
  • Page 27 GD350A series high-performance multifunction VFD mutual interference, and the heat dissipation effect will be degraded. 4.2.7 Tilted installation 热 风 冷 风 热 风 冷 风 热 风 冷 风 Figure 4.6 Tilted installation Note: During tilted installation, it is a must to ensure the air inlet duct and air outlet duct are separated from each other to avoid mutual interference.

  • Page 28: Main Circuit Standard Wiring

    GD350A series high-performance multifunction VFD 4.3 Main circuit standard wiring 4.3.1 Main circuit wiring diagram Braking resistor （+） （-） Output reactor Input 037G/045P and lower 3PH power reactor Output 380V(-15%)-440V(+10%) models filter Input 50/60Hz filter Fuse Braking unit Braking resistor （+）...
  • Page 29 GD350A series high-performance multifunction VFD 4.3.2 Main circuit terminal diagram Figure 4.8 Main circuit terminal diagram for 022G/030P and lower models Figure 4.9 Main circuit terminal diagram for 030G/037P–037G/045P models Figure 4.10 Main circuit terminal diagram for 045G/055P–110G/0132P (optional built-in braking unit means starting PB) -24-...
  • Page 30 GD350A series high-performance multifunction VFD Figure 4.11 Main circuit terminal diagram for 132G/160P–200G/220P models Figure 4.12 Main circuit terminal diagram for 220G/250P–315G/355P models -25-...
  • Page 31 GD350A series high-performance multifunction VFD Figure 4.13 Main circuit terminal diagram for 355G/400P–500G models Terminal Sign Function description 037G/045P and 132G/160P and 045G/055P–110G/132P lower higher 3PH AC input terminal, R, S, T Main circuit power input connected to the grid. 3PH AC output terminal, U, V, W VFD output...
  • Page 32 GD350A series high-performance multifunction VFD 4.3.3 Wiring procedure of the main circuit terminals Connect the ground wire of the input power cable to the PE terminal of the VFD, connect the 3PH input cable to the R, S and T terminals, and tighten up. Connect the ground wire of the motor cable to the PE terminal of the VFD, connect the motor 3PH cable to the U, V and W terminals, and tighten up.

  • Page 33: Control Circuit Standard Wiring

    GD350A series high-performance multifunction VFD 4.4 Control circuit standard wiring 4.4.1 Basic control circuit wiring diagram Forward running Analog output Forward jogging 0-10V/0-20mA Fault reset Y1 output HDIA HDIB High-speed pulse output and open collector output are available for choice. +24V 485+ RS485...
  • Page 34 GD350A series high-performance multifunction VFD Terminal Description name Whether the input is voltage or current is set through P05.50;  Resolution ratio: When 10V corresponds to 50Hz, the min. resolution ratio is  5mV; Deviation: ±0.5% at 25°C, when input is above 5V/10mA. ...
  • Page 35 GD350A series high-performance multifunction VFD Terminal Description name measurement function Safe torque off (STO) redundant input, connected to the external  +24V—H1 STO input 1 NC contact. When the contact opens, STO acts and the VFD stops output; Safety input signal wires use shielded wires whose length is ...

  • Page 36: Wiring Protection

    GD350A series high-performance multifunction VFD + 24V +24V + 24V + 24V + 24V Internal power（NPN mode） External power（NPN mode） Figure 4.17 NPN mode If input signal comes from PNP transistor, set the U-type short connector based on the power used according to the following figure.
  • Page 37 GD350A series high-performance multifunction VFD Input cable M3 ~ Fuse Figure 4.19 Fuse configuration Note: Select the fuse according to operation manual. During short-circuit, the fuse will protect input power cables to avoid damage to the VFD; when internal short-circuit occurred to the VFD, it can protect neighboring equipment from being damaged.

  • Page 38: Basic Operation Guidelines

    GD350A series high-performance multifunction VFD 5 Basic operation guidelines 5.1 What this chapter contains This chapter describes how to operate the VFD by using the keypad. 5.2 Keypad introduction The VFD has been equipped with the LCD keypad as a standard configuration part. You can use the keypad to control the start and stop, read status data, and set parameters of the VFD.
  • Page 39 GD350A series high-performance multifunction VFD Item Description LED blinking: The VFD is autotuning parameters. LED on: The VFD is running. Fault indicator. LED on: in fault state TRIP LED off: in normal state LED blinking: in pre-alarm state Short-cut key indicator, which displays QUICK/JOG different state under different functions, see definition of the QUICK/JOG key for details.
  • Page 40 GD350A series high-performance multifunction VFD Item Description setting, confirming parameter selection, and entering the next menu. When the VFD is controlled by the keypad, Run key this key is used to run the VFD or perform autotuning. In running state, pressing this key can stop running or autotuning;...
  • Page 41 GD350A series high-performance multifunction VFD 16:02:35 Forward Local Ready 01: GD350A Set frequency 50.00 P17.00 DC bus voltage 540.0 P17.11 Digital input terminal state 0x0000 P17.12 Monitoring About Menu Figure 5.2 Main interface of LCD Area Name Displayed contents Real-time display Display the real-time;...

  • Page 42: Keypad Display

    GD350A series high-performance multifunction VFD Area Name Displayed contents Corresponding menus of function keys 4, 5 and 6. The Corresponding corresponding menus of function keys 4, 5 and 6 vary with Footer F menus of function interfaces, and the contents displayed in this area are also keys 4, 5 and 6 different.
  • Page 43 GD350A series high-performance multifunction VFD running state parameter with RUN indicator on the keypad turning on. Under running state, multiple kinds of state parameters can be displayed. Press to shift up or down. 16:02:35 16:02:35 Forward Forward Local 01: GD350A Local 01: GD350A Output frequency...

  • Page 44: Operating The Vfd By Keypad

    GD350A series high-performance multifunction VFD 16:02:35 Forward Local Fault 01: GD350A Type of present fault: Fault code： 19：Current detection fault (ItE) Return Homepage Confirm Figure 5.7 Displaying a fault 5.4 Operating the VFD by keypad You can perform various operations on the VFD by using the keypad, including entering/exiting menus, parameter selection, list modification and parameter addition.
  • Page 45 GD350A series high-performance multifunction VFD 16:02:35 Forward Local Ready 01: GD350A 16:02:35 Forward Local Ready 16:02:35 Forward Local Ready 01: GD350A 01: GD350A Set frequency Common parameter setup P00.10：Keypad setting frequency 50.00 P17.00 Parameter setup P00.00：Speed control mode DC bus voltage State monitoring/fault record P00.11：Acceleration time 1 540.0...
  • Page 46 GD350A series high-performance multifunction VFD Level 1 Level 2 Level 3 Level 4 P00.10: Set frequency via keypad Common P00.00: Speed control mode parameter Pxx.xx : Common parameter setup setup xx Quick setup for function Pxx.xx code P00: Basic function group P00.xx P07: HMI group P07.xx...
  • Page 47 GD350A series high-performance multifunction VFD Level 1 Level 2 Level 3 Level 4 function P06: Output terminal group P06.xx group setup P98: AIAO calibration P98.xx function group P15: Communication expansion card 1 function P15.xx group P16: Communication expansion card 2 function P16.xx group Optional card...
  • Page 48 GD350A series high-performance multifunction VFD Level 1 Level 2 Level 3 Level 4 fault P07.32: Type of the last but four fault P07.33: Running frequency of present fault P07.34: Ramps frequency of Fault state present fault P07.xx: xx state of the last but xx fault Clear fault Sure to clear fault history?
  • Page 49 GD350A series high-performance multifunction VFD Level 1 Level 2 Level 3 Level 4 Backlight brightness regulation Backlight time adjustment Power-on guiding enable Power-on guiding settings Keyboard burning selection Fault time enable Control board burning selection 5.4.2 List edit The monitoring items displayed in the parameter list of stop state can be added by users as needed (through the menu of the function code in state check group), and the list can also be edited by users e.g.
  • Page 50 GD350A series high-performance multifunction VFD including delete, shift-up and shift-down; the addition function can be set in a certain function code of a function group. The edit function is shown in the figure below. 16:02:35 Forward 16:02:35 Forward 16:02:35 Forward Local Ready 01: GD350A...
  • Page 51 GD350A series high-performance multifunction VFD 5.4.4 Add parameter to common parameter setup list In fourth-level menu of "parameter setup" menu, the parameter in the list can be added to the "common parameter setup" list as shown below. 16:02:35 16:02:35 Forward Forward Local Ready 01：GD350A...
  • Page 52 GD350A series high-performance multifunction VFD "Default value" indicates the default value of this parameter. 5.4.6 Parameter setup edit interface In the fourth-level menu in "parameter setup" menu, press key, key or key to enter parameter setup edit interface. After entering edit interface, set the parameter from low bit to high bit, and the bit under setting will be highlighted.
  • Page 53 GD350A series high-performance multifunction VFD 16:02:35 16:02:35 Forward Forward Local Ready 01: GD350A Local Ready 01: GD350A Setting frequency P17.00：Set frequency 50.00 P17.01: Output frequency P17.02: Ramps reference frequency Max. value: 630.00 P17.03: Output voltage Min. value: 0.0 P17.04: Output current Default value: 0.0 P17.05: Motor speed Return...
  • Page 54 GD350A series high-performance multifunction VFD 16:02:35 Forward Local Ready 01: GD350A Forward Local Ready 16:02:35 16:02:35 01: GD350A Forward Local Ready 01: GD350A Operate the storage area 1: BACKUP01 Upload local function parameters to keypad Common parameter setup Operate the storage area 2: BACKUP02 Parameter setup Download complete keypad function parameters Download keypad function parameters not in motor...
  • Page 55 GD350A series high-performance multifunction VFD Level 1 Level 2 Level 3 Level 4 with the expectations? 2: AI2 0: AM P02.00 Type of motor 1 3: AI3 1: SM 4: High-speed P02.01 Rated pulse HDIA power of AM 1 P02.02 Rated 5: Simple PLC frequency of program...
  • Page 56 GD350A series high-performance multifunction VFD Level 1 Level 2 Level 3 Level 4 Motor parameter 0: Keypad autotuning P00.01 interface Running command 1: Terminal channel Communication command 0: Modbus/ Modbus TCP communication 1: PROFIBUS / CANopen /Devicenet communication 2: Ethernet P00.02 Communica Communication...

  • Page 57: Basic Operations

    GD350A series high-performance multifunction VFD Level 1 Level 2 Level 3 Level 4 2: VF control 3: Closed-loop vector control mode 0: Decelerate to P01.08 stop Stop mode 1: Coast to stop P00.11 ACC time 1 P00.12 DEC time 1 5.5 Basic operations 5.5.1 What this section contains This section introduces the function modules inside the VFD.
  • Page 58 GD350A series high-performance multifunction VFD Start Power up after confirming the wiring is correct Restore to default values Set the motor parameters of Set the motor parameters of P02.15–P02.19 as per the P02.01–P02.05 as per the motor nameplate motor nameplate Press QUICK/JOG to jog If the motor rotates in wrong direction, power off and exchange...
  • Page 59 GD350A series high-performance multifunction VFD Note: If fault occurred, rule out the fault cause according to "fault tracking". The running command channel can be set by terminal commands besides P00.01 and P00.02. Multi-function Multi-function terminal Multi-function terminal Current running terminal function (36) function (37) function (38) command channel...
  • Page 60 GD350A series high-performance multifunction VFD Function Name Description Default code where the motor cannot be disconnected from load. 3: Static autotuning 2 (partial autotuning); when the present motor is motor 1, only P02.06, P02.07 and P02.08 are autotuned; when the present motor is motor 2, only P12.06, P12.07 and P12.08 are autotuned.
  • Page 61 GD350A series high-performance multifunction VFD Function Name Description Default code Rated voltage of Model P02.18 0–1200V SM 1 depended Rated current of Model P02.19 0.8–6000.0A SM 1 depended 36: Switch the running command channel to Function selection keypad of multifunction P05.01–...
  • Page 62 GD350A series high-performance multifunction VFD function parameters. R S T Rectifier bridge φ Calculate i exciting current Park IGBT pulse conversion bridge Calculate i torque current φ Position observation Voltage detection Speed identific ation Flux linkage observation Park Clark Current conversio conversion detection...
  • Page 63 GD350A series high-performance multifunction VFD Function Name Description Default code 4: Rotary autotuning 2. Similar to rotary autotuning 1, but it is valid only for AMs. 5: Static autotuning 3 (partial autotuning), valid only for AMs. Type of motor 0: Asynchronous motor (AM) P02.00 1: Synchronous motor (SM) Speed-loop...
  • Page 64 GD350A series high-performance multifunction VFD Function Name Description Default code integral coefficient I 11: Keypad (P03.12) 2: AI1 (100% corresponding to three times the motor rated current) 3: AI2 (same as the above) 4: AI3 (same as the above) 5: Pulse frequency HDIA (same as the above) 6: Multi-step torque (same as the above) 7: Modbus/Modbus TCP communication (same as the Torque setting...
  • Page 65 GD350A series high-performance multifunction VFD Function Name Description Default code (same as the above) 8: Ethernet communication (same as the above) 9: Pulse frequency HDIB (same as the above) 10: EtherCat/Profinet/EtherNetIP communication 11: Programmable expansion card 12: Reserved Note: For setting methods 1–11, 100% corresponds to the maximum frequency.
  • Page 66 GD350A series high-performance multifunction VFD Function Name Description Default code 5: Modbus/Modbus TCP communication (same as the above) 6: Profibus/CANopen/DeviceNet communication (same as the above) 7: Ethernet communication (same as the above) 8: Pulse frequency HDIB (same as the above) 9: EtherCAT/Profinet communication 10: Programmable expansion card 11: Reserved...
  • Page 67 GD350A series high-performance multifunction VFD Function Name Description Default code constant power zone Max. voltage P03.24 0.0–120.0% 100.0% limit Pre-exciting P03.25 0.000–10.000s 0.300s time Enabling 0: Disable P03.32 torque control 1: Enable Flux 0–8000 1200 P03.33 weakening integral gain 0–0x1111 Ones place: Torque command selection 0: Torque reference 1: Torque current reference...
  • Page 68 GD350A series high-performance multifunction VFD Function Name Description Default code coefficient and when the frequency is higher than the current- loop high-frequency switching threshold (P03.39), the High- current-loop PI parameters are P03.37 and P03.38. frequency Setting range of P03.37: 0–20000 current-loop P03.38 1000...
  • Page 69 GD350A series high-performance multifunction VFD Output voltage Torque -down V/F curve (power of 1.3) Torque -down V/F curve (power of 1.7) Straight-type Torque -down V/F curve (power of 2.0) Square-type Output frequency The VFD also provides multi-point V/F curves. You can change the V/F curves output by the VFD by setting the voltage and frequency of the three points in the middle.
  • Page 70 GD350A series high-performance multifunction VFD Torque boost takes effect only at the torque boost cut-off frequency.  If torque boost is too large, the motor may encounter low-frequency vibration or overcurrent. If  such a situation occurs, reduce the torque boost value. Output voltage V boost cut-off...
  • Page 71 GD350A series high-performance multifunction VFD AM IF control Generally, the IF control mode is valid for AMs. It can be used for SMs only when the frequency is extremely low. Therefore, the IF control mode described in this manual is only involved with AMs. IF control is implemented by performing closed-loop control on the total output current of the VFD.
  • Page 72 GD350A series high-performance multifunction VFD When selecting the customized V/F curve function, you can specify the setting channels and acceleration/deceleration time of voltage and frequency respectively, which form a real-time V/F curve -67-...
  • Page 73 GD350A series high-performance multifunction VFD in combination manner. Note: This type of V/F curve separation can be applied in various variable-frequency power sources. However, exercise caution when setting parameters as improper settings may cause equipment damage. Function Name Description Default code 0: Sensorless vector control (SVC) mode 0 1: Sensorless vector control (SVC) mode 1...
  • Page 74 GD350A series high-performance multifunction VFD Function Name Description Default code V/F frequency P04.03 0.00Hz–P04.05 0.00Hz point 1 of motor 1 V/F voltage point 1 P04.04 0.0%–110.0% 0.0% of motor 1 V/F frequency P04.05 P04.03– P04.07 0.00Hz point 2 of motor 1 V/F voltage point 2 P04.06 0.0%–110.0%...
  • Page 75 GD350A series high-performance multifunction VFD Function Name Description Default code of motor 2 V/F frequency P04.18 P04.16– P04.20 0.00Hz point 2 of motor 2 V/F voltage point 2 P04.19 0.0%–110.0% 0.0% of motor 2 V/F frequency P04.20 P04.18– P02.02 or P04.18– P02.16 0.00Hz point 3 of motor 2 V/F voltage point 3...
  • Page 76 GD350A series high-performance multifunction VFD Function Name Description Default code communication 12: Programmable expansion card 13: Reserved Voltage set P04.28 0.0%–100.0%(of the motor rated voltage) 100.0% through keypad Voltage increase P04.29 0.0–3600.0s 5.0s time Voltage decrease P04.30 0.0–3600.0s 5.0s time Max.
  • Page 77 GD350A series high-performance multifunction VFD Function Name Description Default code coefficient in SM control. V/F control Setting range: 0–3000 When the SM V/F control mode is enabled, the Reactive current function code is used to set the integral closed-loop P04.38 coefficient of reactive current closed-loop integral time in SM control.
  • Page 78 GD350A series high-performance multifunction VFD Function Name Description Default code for AM 2 1: Enable When IF control is adopted for AM 2, the function code is used to set the output current. Current setting in P04.46 The value is a percentage in relative to the 120.0% IF mode for AM 2 rated current of the motor.
  • Page 79 GD350A series high-performance multifunction VFD -74-...
  • Page 80 GD350A series high-performance multifunction VFD Function Name Description Default code 0: Sensorless vector control (SVC) mode 0 1: Sensorless vector control (SVC) mode 1 2: Space voltage vector control mode Speed control P00.00 3: Closed-loop vector control mode mode Note: To select 0, 1, or 3 as the control mode, enable the VFD to perform motor parameter autotuning first.
  • Page 81 GD350A series high-performance multifunction VFD Function Name Description Default code 7: Profibus/CANopen/DeviceNet communication (same as the above) 8: Ethernet communication (same as the above) 9: Pulse frequency HDIB (same as the above) 10: EtherCat/Profinet/EtherNetIP communication 11: Programmable expansion card 12: Reserved Note: For setting methods 1–11, 100% corresponds to the maximum frequency.
  • Page 82 GD350A series high-performance multifunction VFD Function Name Description Default code torque upper limit motor rated current) 2: AI2 (same as the above) 3: AI3 (same as the above) 4: Pulse frequency HDIA (same as the above) 5: Modbus/Modbus TCP communication (same as the above) 6: Profibus/CANopen/DeviceNet communication (same as the above)
  • Page 83 GD350A series high-performance multifunction VFD Function Name Description Default code through keypad P17.09 Output torque -250.0–250.0% 0.0% Torque reference P17.15 -300.0–300.0% (of the motor rated current) 0.0% value 5.5.6 Motor parameters  Check the safety conditions surrounding the motor and load machineries before autotuning as physical injury may occur due to sudden start of motor during autotuning.
  • Page 84 GD350A series high-performance multifunction VFD Start Select running command channel (P00.01) Terminal Communication Keypad (P00.01=0) (P00.01=1) (P00.01=2) P08.31 set LED The switch-over ones to 0 channel for motor 1 and P08.31 sets motor 2 (P08.31) P08.31 sets P08.31 sets ones to 4 ones to 3 ones to 2 Terminal function 35...
  • Page 85 GD350A series high-performance multifunction VFD Ready P00.01=0 (controlled by keypad) Synchronous Asynchronous Motor type motor motor (P02.00) P02.00=1 P02.00=0 Input motor nameplate Input motor nameplate (P02.12–P02.19) (P02.01–P02.05) Set autotuning mode Complete parameter Complete parameter Partial parameter rotary rotary autotuning static autotuning autotuning Press "RUN"...
  • Page 86 GD350A series high-performance multifunction VFD the motor in static and no-load state. Otherwise, the motor parameter autotuning results may be incorrect. In addition, autotune P02.06–P02.10 for AMs and autotune P02.20–P02.23 for SMs. If static autotuning is selected for motor autotuning, there is no need to disconnect the motor from ...
  • Page 87 GD350A series high-performance multifunction VFD Function Name Description Default code 1: Synchronous motor (SM) Model P02.01 Rated power of AM 1 0.1–3000.0kW depended Rated frequency of P02.02 0.01Hz–P00.03 (Max. output frequency) 50.00Hz AM 1 Model P02.03 Rated speed of AM 1 1–60000rpm depended Model...
  • Page 88 GD350A series high-performance multifunction VFD Function Name Description Default code SM 1 depended Direct-axis inductance Model P02.21 0.01–655.35mH of SM 1 depended Quadrature-axis Model P02.22 0.01–655.35mH inductance of SM 1 depended P02.23 Counter-emf constant 0–10000 of SM 1 Function selection of P05.01–...
  • Page 89 GD350A series high-performance multifunction VFD Function Name Description Default code Model P12.03 Rated speed of AM 2 1–60000rpm depended Model P12.04 Rated voltage of AM 2 0–1200V depended Model P12.05 Rated current of AM 2 0.8–6000.0A depended Stator resistance of Model P12.06 0.001–65.535Ω...
  • Page 90 GD350A series high-performance multifunction VFD Function Name Description Default code inductance of SM 2 P12.23 Counter-emf constant 0–10000 of SM 2 5.5.7 Start/stop control The start/stop control of the VFD involves three states: start after a running command is given at power-on;...
  • Page 91 GD350A series high-performance multifunction VFD -86-...
  • Page 92 GD350A series high-performance multifunction VFD Logic diagram for start after power-off restart is effective Standby Keypad The running state Stop Stop before power cut Restart after Communi power-cut cation Delay time of restart Waiting time of restart at >P01.123 power-cut>P01.22 P01.21 (restart at power-cut) Termin...
  • Page 93 GD350A series high-performance multifunction VFD Function Name Description Default code direct start Starting frequency hold P01.02 0.0–50.0s 0.0s time Braking current before P01.03 0.0–100.0% 0.0% start DC braking time before P01.04 0.00–50.00s 0.00s start 0: Linear 1: S curve P01.05 ACC and DEC mode Note: If mode 1 is selected, set P01.06, P01.07,...
  • Page 94 GD350A series high-performance multifunction VFD Function Name Description Default code than frequency lower limit 2: Sleep (valid when frequency lower limit greater than 0) P01.20 Wake-up-from-sleep delay 0.0–3600.0s (valid when P01.19=2) 0.0s 0: Disable P01.21 Power-off restart selection 1: Enable Wait time for power-on P01.22 0.0–3600.0s (valid when P01.21=1)
  • Page 95 GD350A series high-performance multifunction VFD Function Name Description Default code 21: ACC/DEC time selection 1 22: ACC/DEC time selection 2 30: Disable ACC/DEC Model P08.00 ACC time 2 0.0–3600.0s depended Model P08.01 DEC time 2 0.0–3600.0s depended Model P08.02 ACC time 3 0.0–3600.0s depended Model...
  • Page 96 GD350A series high-performance multifunction VFD There is one input mode for auxiliary reference channel, namely terminal UP/DOWN switch input. By setting function codes, you can enable the corresponding reference mode and the impact made on the VFD frequency reference by this reference mode. The actual reference of VFD is comprised of the main reference channel and auxiliary reference channel.
  • Page 97 GD350A series high-performance multifunction VFD Multifunction Multifunction Present Multifunction terminal function 14 terminal function 15 reference terminal function 13 Combination setting Combination setting channel Channel A switched switched to channel switched to channel P00.09 to channel B Max(A,B) Min(A,B) Note: "/" indicates this multifunction terminal is invalid under present reference channel. When setting the auxiliary frequency inside the VFD via multi-function terminal UP (10) and DOWN (11), you can increase/decrease the frequency quickly by setting P08.45 (UP terminal frequency incremental change rate) and P08.46 (DOWN terminal frequency decrement change rate).
  • Page 98 GD350A series high-performance multifunction VFD Function Name Description Default code frequency command 3: AI3 4: High-speed pulse HDIA 5: Simple PLC program 6: Multi-step speed running 7: PID control 8: Modbus/Modbus TCP communication 9: Profibus/CANopen/DeviceNet communication 10: Ethernet communication 11: High-speed pulse HDIB 12: Pulse train AB 13: EtherCat/Profinet/EtherNetIP communication...
  • Page 99 GD350A series high-performance multifunction VFD Function Name Description Default code 0: The setting made through UP/DOWN is valid. 1: The setting made through UP/DOWN is invalid. Ones place: Frequency control selection 0: Valid only when P00.06=0 or P00.07=0 1: Valid for all frequency setting methods 2: Invalid for multi-step speed running when multi-step speed running has the priority...
  • Page 100 GD350A series high-performance multifunction VFD Analog input curve setting Analog input filter P05.24 P05.25 P05.28 AI1 input voltage P05.26 P05.27 P17.19 P05.29 AI2 input voltage P05.30 P05.31 P17.20 P05.32 P05.37 P05.33 P05.34 P05.35 P05.36 HDIA input frequency P17.21 P05.39 HDIA P05.40 P05.43 P05.41...
  • Page 101 GD350A series high-performance multifunction VFD Function Name Description Default code Corresponding setting of P05.30 -300.0%–300.0% -100.0% AI2 lower limit P05.31 AI2 middle value 1 P05.29–P05.33 0.00V Corresponding setting of P05.32 -300.0%–300.0% 0.0% AI2 middle value 1 P05.33 AI2 middle value 2 P05.31–P05.35 0.00V Corresponding setting of...
  • Page 102 GD350A series high-performance multifunction VFD Function Name Description Default code 0: Voltage 1: Current 5.5.10 Analog output The VFD provides one analog output terminal (supporting 0–10V/0–20mA) and one high-speed pulse output terminal. Analog output signals can be filtered separately, and the proportional relation can be adjusted by setting the max.
  • Page 103 GD350A series high-performance multifunction VFD Setting Function Description AI2 input 0V–10V. A negative value corresponds to 0.0% by default. AI3 input 0–10V/0–20mA High-speed pulse HDIA input 0.00–50.00kHz Value 1 set through Modbus/Modbus TCP 0–1000 communication Value 2 set through Modbus/Modbus TCP 0–1000 communication Value 1 set through...
  • Page 104 GD350A series high-performance multifunction VFD Setting Function Description C_AO1 from PLC 0–1000 C_AO2 from PLC 0–1000 0–Twice the motor rated synchronous Rotational speed speed 0–Twice motor rated torque. A negative Output torque (bipolar) value corresponds to 0.0% by default. 31–47 Reserved Related parameter list: Function...
  • Page 105 GD350A series high-performance multifunction VFD Function Name Description Default code TCP (0–1000) 15: Value 2 set through Modbus/Modbus TCP (0–1000) Value through PROFIBUS/CANopen/DeviceNet (0– 1000) Value through PROFIBUS/CANopen/DeviceNet (0– 1000) 18: Value 1 set through Ethernet 1 (0– 1000) 19: Value 2 set through Ethernet 2 (0– 1000) 20: HDIB input (0.00–50.00kHz) Value...
  • Page 106 GD350A series high-performance multifunction VFD Function Name Description Default code P06.19 AO1 output upper limit P06.17–300.0% 100.0% AO1 output corresponding to P06.20 0.00V–10.00V 10.00V upper limit P06.21 AO1 output filter time 0.000s–10.000s 0.000s P06.22– Reserved 0–65535 P06.26 P06.27 HDO output lower limit -300.0%–P06.29 0.0% HDO output corresponding...
  • Page 107 GD350A series high-performance multifunction VFD Setting Function Description Run forward (FWD) Control the forward/reverse running of the VFD by external Run reversely (REV) terminals. Set the VFD running mode to 3-wire control mode by this Three-wire running control terminal. See P05.13 for details. Jog forward For details about the frequency and ACC/DEC time at jogging, see P08.06, P08.07 and P08.08.
  • Page 108 GD350A series high-performance multifunction VFD Setting Function Description and B setting A frequency reference channel and B frequency reference channel can be switched by no. 13 function; the Switch between combination channel set by P00.09 and the A frequency combination setting and A reference channel can be switched by no.
  • Page 109 GD350A series high-performance multifunction VFD Setting Function Description (back to the central frequency) Counter reset The counter is cleared. Switch between speed The VFD switches from torque control mode to speed control and torque control control mode, or vice versa. Used to ensure the VFD is not be impacted by external Disable ACC/DEC signals (except for stop command), and the VFD maintains...
  • Page 110 GD350A series high-performance multifunction VFD Setting Function Description of braking torque upper is set through the keypad. limit to keypad Position reference point Valid only for S1, S2, and S3. input Disable spindle Used to disable spindle orientation. orientation Spindle zeroing / Local Used to trigger and enable spindle orientation.
  • Page 111 GD350A series high-performance multifunction VFD Setting Function Description When the thousands place of P21.00 determines to enable servo, the servo enabling terminal is valid, which controls to Enable servo VFD to enter zero servo control. At this time, a start command is not required.
  • Page 112 GD350A series high-performance multifunction VFD Function Name Description Default code 6: Coast to stop Function of HDIA P05.05 7: Fault reset terminal 8: Running pause Function of HDIB 9: External fault input P05.06 terminal 10: Frequency increase (UP) 11: Frequency decrease (DOWN) 12: Clear frequency increase/decrease setting 13: Switch-over between setup A and setup...
  • Page 113 GD350A series high-performance multifunction VFD Function Name Description Default code 38: Command switches to communication 39: Pre-exciting command 40: Zero out power consumption quantity 41: Maintain power consumption quantity 42: Source of upper torque limit switches to keypad 56: Emergency stop 57: Motor over-temperature fault input 59: Switch to V/F control 60: Switch to FVC control...
  • Page 114 GD350A series high-performance multifunction VFD Function Name Description Default code S2 terminal switch-on P05.14 0.000–50.000s 0.000s delay S2 terminal switch-off P05.15 0.000–50.000s 0.000s delay S3 terminal switch-on P05.16 0.000–50.000s 0.000s delay S3 terminal switch-off P05.17 0.000–50.000s 0.000s delay S4 terminal switch-on P05.18 0.000–50.000s 0.000s...
  • Page 115 GD350A series high-performance multifunction VFD P06.05 output polarity Digital output selection Digital switch-on delay Digital switch-off delay selection P17.12 Digital input P06.06 P06.07 terminal state T delay P06.01 T delay Fault？ （Default value: 0） P07.40 Digital output Fault terminal state P06.08 P06.09 of current...
  • Page 116 GD350A series high-performance multifunction VFD Setting Function Description elapsed based on the pre-alarm threshold; see P11.08–P11.10 for details. Output ON signal after the pre-alarm time Underload pre-alarm elapsed based on the pre-alarm threshold; see P11.11–P11.12 for details. Output signal when current stage of simple PLC is Simple PLC state completed completed Output signal when a single cycle of simple PLC...
  • Page 117 GD350A series high-performance multifunction VFD Setting Function Description Reserved Speed/position control switch-over Output is valid when the mode switch-over is completed completed 37–40 Reserved C_Y1 C_Y1 from PLC (You need to set P27.00 to 1.) C_Y2 C_Y2 from PLC (You need to set P27.00 to 1.) C_HDO C_HDO from PLC (You need to set P27.00 to 1.) C_RO1...
  • Page 118 GD350A series high-performance multifunction VFD Function Name Description Default code 19: Reach designated counting value 20: External fault is valid 21: Reserved 22: Reach running time 23: Virtual terminal output of Modbus/Modbus TCP communication 24: Virtual terminal output of PROFIBUS/CANopen/DeviceNET communication 25: Virtual terminal output of Ethernet communication...
  • Page 119 GD350A series high-performance multifunction VFD Function Name Description Default code P27.00 to 1.) 47: C_RO4 from PLC (You need to set P27.00 to 1.) 48–63: Reserved Output terminal polarity P06.05 0x00–0x0F 0x00 selection P06.06 Y switch-on delay 0.000–50.000s 0.000s P06.07 Y switch-off delay 0.000–50.000s 0.000s...
  • Page 120 GD350A series high-performance multifunction VFD Digital output 16 Simple PLC state completed Digital output 17 Simple PLC cycle completed Related parameter list: Function Name Description Default code 23: Simple PLC stop reset P05.01– Digital input function 24: Pause simple PLC P05.06 selection 25: Pause PID control...
  • Page 121 GD350A series high-performance multifunction VFD Function Name Description Default code P10.19 Running time of step 8 0.0–6553.5s (min) 0.0s P10.20 Multi-step speed 9 -100.0–100.0% 0.0% P10.21 Running time of step 9 0.0–6553.5s (min) 0.0s P10.22 Multi-step speed 10 -100.0–100.0% 0.0% P10.23 Running time of step 10 0.0–6553.5s (min)
  • Page 122 GD350A series high-performance multifunction VFD 5.5.14 Multi-step speed running The VFD can set 16-step speeds, which are selectable by multi-step speed terminals 1–4, corresponding to multi-step speed 0 to multi-step speed 15. P10.02 multi-step speed 0 BIT0 P10.34 P10.03 running time of 0 step BIT1 Terminal function 16...
  • Page 123 GD350A series high-performance multifunction VFD Function code Name Description Default P10.06 0.0% Multi-step speed 2 -100.0–100.0% P10.07 0.0s Running time of step 2 0.0–6553.5s (min) P10.08 0.0% Multi-step speed 3 -100.0–100.0% P10.09 0.0s Running time of step 3 0.0–6553.5s (min) P10.10 0.0% Multi-step speed 4...
  • Page 124 GD350A series high-performance multifunction VFD Function code Name Description Default Simple PLC and present Displays the present stage of P17.27 stage number of multi-step the simple PLC function. speed 5.5.15 PID control PID control, a common mode for process control, is mainly used to adjust the VFD output frequency or output voltage through performing scale-division, integral and differential operations on the difference between feedback signal of controlled variables and signal of the target, thus forming a negative feedback system to keep the controlled variables above the target.
  • Page 125 GD350A series high-performance multifunction VFD disappears. Integral regulator can be used to eliminate static difference; however, too large regulation may lead to repetitive overshoot, which will cause system instability and oscillation. The feature of oscillation caused by strong integral effect is that the feedback signal fluctuates up and down based on the reference variable, and fluctuation range increases gradually until oscillation occurred.
  • Page 126 GD350A series high-performance multifunction VFD Control overshoot: When overshoot occurred, shorten the derivative time (Td) and prolong integral time (Ti). Response Before adjustment After adjustment Time t Stabilize the feedback value as fast as possible: when overshoot occurred, shorten integral time (Ti) and prolong derivative time (Td) to stabilize control as fast as possible.
  • Page 127 GD350A series high-performance multifunction VFD After adjustment Response Before adjustment Time t Related parameter list: Function Name Description Default code 0: Keypad (P09.01) 1: AI1 2: AI2 3: AI3 4: High-speed pulse HDIA 5: Multi-step running PID reference 6: Modbus/Modbus TCP communication P09.00 source 7: PROFIBUS/CANopen/DevicneNET...
  • Page 128 GD350A series high-performance multifunction VFD Function Name Description Default code 8: EtherCat/Profinet/EtherNetIP communication 9: Programmable expansion card 10: Reserved PID output 0: PID output is positive characteristic P09.03 characteristics 1: PID output is negative characteristic selection Proportional gain 0.00–100.00 P09.04 1.80 (Kp) 0.01–10.00s...
  • Page 129 GD350A series high-performance multifunction VFD Function Name Description Default code 1: A+B frequency, acceleration/ deceleration of main reference A frequency source buffering is valid, acceleration/deceleration is determined by P08.04 (acceleration time 4). Low frequency P09.14 proportional gain 0.00–100.00 1.00 (Kp) ACC/DEC time of P09.15 0.0–1000.0s...
  • Page 130 GD350A series high-performance multifunction VFD Keypad P00.10 P00.06 (A frequency command Frequency set by Amplitude of wobbling selection) keypad frequency P08.05 Maintain current frequency Valid HDIA Valid Set frequency Wobbling Simple PLC Invalid Invalid frequency output Multi-step speed Terminal function 26 Terminal function 27 wobbling frequency Wobbling frequency reset...
  • Page 131 GD350A series high-performance multifunction VFD Function Name Description Default code center frequency) Amplitude of wobbling P08.15 0.0–100.0% (relative to set frequency) 0.0% frequency Amplitude of jump 0.0–50.0% (relative to amplitude of P08.16 0.0% frequency wobbling frequency) Wobbling frequency P08.17 0.1–3600.0s 5.0s rise time Wobbling frequency...
  • Page 132 GD350A series high-performance multifunction VFD 5.5.18 Commissioning procedures for closed-loop control, position control and spindle positioning 1. Commissioning procedures for closed-loop vector control of asynchronous motor Step 1: Restore to default value via keypad Step 2: Set P00.03, P00.04 and P02 group motor nameplate parameters Step 3: Motor parameter autotuning Carry out rotary parameter autotuning or static parameter autotuning via keypad, if the motor can be disconnected from load, then it is users can carry out rotary parameter autotuning;...
  • Page 133 GD350A series high-performance multifunction VFD Step 1: Set P00.18=1, restore to default value Step 2: Set P00.00=3 (FVC), set P00.03, P00.04, and motor nameplate parameters in P02 group. Step 3: Set P20.01 encoder parameter. When the encoder is resolver-type encoder, set the encoder pulse count value to (resolver pole pair number ×...
  • Page 134 GD350A series high-performance multifunction VFD Step 2: Set P00.03, P00.04 and motor nameplate parameters in P02 group Step 3: Motor parameter autotuning: rotary parameter autotuning or static parameter autotuning Step 4: Verity the installation and settings of encoder. Set P00.00=3 and P00.10=20Hz to run the system, and check the control effect and performance of the system.
  • Page 135 GD350A series high-performance multifunction VFD Frequency Deceleration time of spindle orientation Speed of accurate-stop of spindle Time P21.09 Completion range of positioning Running command Zeroing command Zeroing selection terminal 1 Hold time of positioning completion signal Positioning completion signal P21.25 Hold time of positioning completion signal P21.10 Detection time for positioning completion Step 1–4: These four steps are the same with the first four steps of the commissioning procedures for...
  • Page 136 GD350A series high-performance multifunction VFD The priority level of speed running is higher than that of the scale division, when the system runs in scale-division mode, if spindle orientation is prohibited, the motor will turn to speed mode or position mode.
  • Page 137 GD350A series high-performance multifunction VFD Frequency Positioning speed P21.22 Hold time Time of positioning arrival Running command Cyclic positioning enable signal terminal Positioning completion signal P21.25 Hold time of positioning completion signal Step 1–4: These four steps are the same with the first four steps of the commissioning procedures for closed-loop vector control, which aim to fulfill the control requirements of closed-loop vector control.
  • Page 138 GD350A series high-performance multifunction VFD Step 5: Set P21.00=0021 to enable photoelectric switch positioning, the photoelectric switch signal can be connected to S8 terminal only, and set P05.08=43, meanwhile, set P21.17, P21.11 and P21.12 (set positioning displacement) based on actual needs; set P21.21 (deceleration time of positioning), however, when present running speed is too fast or the set positioning displacement is too small, the deceleration time of positioning will be invalid, and it will enter direct deceleration positioning mode.
  • Page 139 GD350A series high-performance multifunction VFD In running Fault occurred, and the keypad displayed fault code Figure out the fault cause based on the fault code Figure out the most possible cause according to P07.33– P07.40 Rule out fault based on corresponding solutions Consult us...
  • Page 140 GD350A series high-performance multifunction VFD Function Name Description Default code 12: VFD overload (OL2) 13: Phase loss on input side (SPI) 14: Phase loss on output side (SPO) 15: Rectifier module overheat (OH1) 16: Inverter module overheat (OH2) 17: External fault (EF) 18: Modbus/Modbus TCP communication fault (CE) 19: Current detection fault (ItE)
  • Page 141 GD350A series high-performance multifunction VFD Function Name Description Default code 44: Safety code FLASH CRC fault (CrCE) 45: PLC card customized fault 1 (P-E1) 46: PLC card customized fault 2 (P-E2) 47: PLC card customized fault 3 (P-E3) 48: PLC card customized fault 4 (P-E4) 49: PLC card customized fault 5 (P-E5) 50: PLC card customized fault 6 (P-E6) 51: PLC card customized fault 7 (P-E7)
  • Page 142 GD350A series high-performance multifunction VFD Function Name Description Default code 72: EthernetIP communication timeout (E- EIP) Running frequency at P07.33 0.00Hz present fault Ramp reference P07.34 frequency at present 0.00Hz fault Output current at P07.35 present fault Output current at P07.36 0.0A present fault...
  • Page 143 GD350A series high-performance multifunction VFD Function Name Description Default code frequency at 2nd-last fault Output voltage at 2nd- P07.51 last fault Output current at 2nd- P07.52 0.0A last fault Bus voltage at 2nd-last P07.53 0.0V fault Max temperature at 2nd- P07.54 -20.0–120.0°C 0.0°C...

  • Page 144: Function Parameter List

    GD350A series high-performance multifunction VFD 6 Function parameter list 6.1 What this chapter contains This chapter lists all the function codes and corresponding description of each function code. 6.2 Function parameter list The function parameters of the VFD are divided into groups by function. Among the function parameter groups, the P98 group is the analog input and output calibration group, while the P99 group contains the factory function parameters, which are user inaccessible.
  • Page 145 GD350A series high-performance multifunction VFD parameter setting may cause operation exceptions or even damage to the VFD.) If password protection is not in locked state, you can change the password any time. You can set P07.00 to 0 to cancel the user password. When P07.00 is set to a non-zero value during power-on, parameters are prevented from being modified by using the user password function.
  • Page 146 GD350A series high-performance multifunction VFD Function Name Description Default Modify code When the set frequency is higher than the upper limit of the running frequency, the upper limit of the running frequency is used for running. Setting range: P00.05–P00.03 (Max. output frequency) The lower limit of the running frequency is the lower limit of the output frequency of the VFD,...
  • Page 147 GD350A series high-performance multifunction VFD Function Name Description Default Modify code of setting source 1: B 2: (A+B) 3: (A- B) 4: Max(A, B) 5: Min. (A, B) When A and B frequency commands select the keypad for setting, the value of the function Frequency set code is the original setting one of the P00.10...
  • Page 148 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 1.5–11kW 8kHz 15–55kW 4kHz type Higher than 2kHz 75kW 2.2–15kW 4kHz Higher than type 2kHz 18.5kW Advantage of high carrier frequency: ideal current waveform, little current harmonic wave and motor noise. Disadvantage of high carrier frequency: increasing the switch loss, increasing VFD temperature and the impact to the output...
  • Page 149 GD350A series high-performance multifunction VFD Function Name Description Default Modify code when the present motor is motor 1, only P02.06, P02.07 and P02.08 are autotuned; when the present motor is motor 2, only P12.06, P12.07 and P12.08 are autotuned. 4: Rotary autotuning 2. Similar to rotary autotuning 1, but it is valid only for AMs.
  • Page 150 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Output frequency fmax F1 set by P01.01 T1 set by P01.02 Setting a proper starting frequency can increase the torque during VFD start. During Starting frequency P01.02 0.0s ◎ the hold time of the starting frequency, the hold time output frequency of the VFD is the starting...
  • Page 151 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Output frequency f fmax Time t 1: S curve. The output frequency increases or decreases according to the S curve. The S curve is generally applied to elevators, conveyors, and other application scenarios where smoother start or stop is required.
  • Page 152 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Starting frequency of DC braking for stop: Starting frequency During the deceleration to stop, the VFD P01.09 of DC braking for 0.00Hz ○ starts DC braking for stop when running stop frequency reaches the starting frequency Demagnetization...
  • Page 153 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Setting range: 0.0–3600.0s 0: Switch at zero frequency FWD/REV running 1: Switch at the starting frequency P01.14 ◎ switching mode 2: Switch after the speed reaches the stop speed with a delay P01.15 Stop speed 0.00–100.00Hz...
  • Page 154 GD350A series high-performance multifunction VFD Function Name Description Default Modify code again and it lasts for the time set by P01.20, the VFD resumes the running state automatically. The function code determines the wake-up- from-sleep delay time. When the running frequency of the VFD is lower than the lower limit, the VFD becomes standby.
  • Page 155 GD350A series high-performance multifunction VFD Function Name Description Default Modify code P01.21=1) After a VFD running command is given, the VFD is in standby state and restarts with the P01.23 Start delay delay defined by P01.23 to implement brake 0.0s ○...
  • Page 156 GD350A series high-performance multifunction VFD Function Name Description Default Modify code of braking for jogging to stop P01.34 Delay to enter sleep 0–3600.0s 0.0s ○ P02 group––Parameters of motor 1 0: Asynchronous motor (AM) P02.00 Type of motor 1 ◎ 1: Synchronous motor (SM) Rated power of AM Model...
  • Page 157 GD350A series high-performance multifunction VFD Function Name Description Default Modify code core of AM 1 Rated power of SM Model P02.15 0.1–3000.0kW ◎ depended Rated frequency of P02.16 0.01Hz–P00.03 (Max. output frequency) 50.00Hz ◎ SM 1 Number of pole P02.17 1–128 ◎...
  • Page 158 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Motor overload multiples M=Iout/(In*K) In is rated motor current, lout is VFD output current, and K is motor overload protection coefficient. A smaller value of K indicates a bigger value of M.
  • Page 159 GD350A series high-performance multifunction VFD Function Name Description Default Modify code parameters P03.00–P03.05 Speed-loop P03.00 20.0 ○ applicable only to vector control mode. Below proportional gain 1 the switching frequency 1 (P03.02), the Speed-loop integral speed-loop PI parameters are: P03.00 and P03.01 0.200s ○...
  • Page 160 GD350A series high-performance multifunction VFD Function Name Description Default Modify code (Max. output frequency) Speed-loop output P03.06 0–8 (corresponding to 0–2^8/10ms) ○ filter Electromotive slip compensation Slip compensation coefficient is used to adjust P03.07 100% ○ coefficient of vector the slip frequency of the vector control and control improve the speed control accuracy of the system.
  • Page 161 GD350A series high-performance multifunction VFD Function Name Description Default Modify code EtherCat/Profinet/EthernetIP communication 12: Programmable expansion card Torque set through P03.12 -300.0%–300.0% (of the motor rated current) 20.0% ○ keypad Torque reference P03.13 0.000–10.000s 0.010s ○ filter time 0: Keypad (P03.16) 1: AI1 (100% corresponding to the max.
  • Page 162 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 9: Pulse frequency HDIB (same as the above) EtherCat/Profinet/EthernetIP communication 11: Programmable expansion card 12: Reserved Forward rotation upper-limit The function codes are used to set the P03.16 frequency set 50.00Hz ○...
  • Page 163 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Modbus/Modbus communication (same as the above) Profibus/CANopen/DeviceNet communication (same as the above) 7: Ethernet communication (same as the above) 8: Pulse frequency HDIB (same as the above) EtherCat/Profinet/EthernetIP communication 10: Programmable expansion card 11: Reserved Electromotive...
  • Page 164 GD350A series high-performance multifunction VFD Function Name Description Default Modify code VFD, which is the percentage of motor rated voltage. Set the value according to onsite conditions. Setting range: 0.0–120.0% Pre-exciting is performed for the motor when the VFD starts up. A magnetic field is built up P03.25 Pre-exciting time inside the motor to improve the torque...
  • Page 165 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 0: Reserved 1: Reserved Hundreds place: indicates whether to enable speed-loop integral separation 0: Disable 1: Enable Thousands place: Reserved 0: Reserved 1: Reserved Range: 0x0000–0x1111 Speed-loop P03.36 0.00–10.00s 0.00s ○...
  • Page 166 GD350A series high-performance multifunction VFD Function Name Description Default Modify code identification to be performed properly. Setting range: 0.0–100.0% (of the motor rated torque) Enabling inertia 0: No operation P03.44 ◎ identification 1: Enable P03.45– Reserved 0–65535 ● P03.46 P04 group––V/F control This group of function code defines the V/F curve of motor 1 to meet the needs of different loads.
  • Page 167 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Torque boost of In order to compensate for low-frequency P04.01 0.0% ○ motor 1 torque characteristics, you can make some boost compensation for the output voltage. P04.01 is relative to the maximum output voltage V P04.02 defines the percentage of cut-off frequency of manual torque boost to the rated...
  • Page 168 GD350A series high-performance multifunction VFD Function Name Description Default Modify code The V/F curve is generally set according to the V/F voltage point 1 P04.04 00.0% ○ load characteristics of the motor. of motor 1 Note: V1 < V2 < V3, f1 < f2 < f3. Too high V/F frequency point voltage for low frequency will cause motor P04.05...
  • Page 169 GD350A series high-performance multifunction VFD Function Name Description Default Modify corresponds to the rated slip frequency △f of code motor 1. Setting range: 0.0–200.0% In space voltage vector control mode, the Low-frequency motor, especially the large-power motor, may P04.10 oscillation control ○...
  • Page 170 GD350A series high-performance multifunction VFD Function Name Description Default Modify code of motor 2 rated voltage of motor 2) Setting range of P04.20: P04.18– P12.02 V/F frequency point P04.20 0.00Hz ○ (rated frequency of AM 2) or P04.18– P12.16 3 of motor 2 (rated frequency of SM 2) V/F voltage point 3 Setting range of P04.21: 0.0%–110.0% (of the...
  • Page 171 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 0: Keypad (The output voltage is determined by P04.28) 1: AI1 2: AI2 3: AI3 4: HDIA 5: Multi-step speed running (The setting is determined by group P10.) Voltage setting 6: PID P04.27 ○...
  • Page 172 GD350A series high-performance multifunction VFD Function Name Description Default Modify code the motor rated voltage) Setting range of P04.32: 0.0%–P04.31 Weakening coefficient in P04.33 1.00–1.30 1.00 ○ constant power zone When the SM V/F control mode is enabled, the function code is used to set the reactive current of the motor when the output Pull-in current 1 in P04.34...
  • Page 173 GD350A series high-performance multifunction VFD Function Name Description Default Modify code closed-loop output function code is used to set the output limit of limit in SM V/F the reactive current closed-loop control. A control greater value indicates a higher reactive closed-loop compensation voltage and higher output power of the motor.
  • Page 174 GD350A series high-performance multifunction VFD Function Name Description Default Modify code mode for AM 2 coefficient of output current closed-loop control. Setting range: 0–5000 When IF control is adopted for AM 2, the function code is used to set the integral Integral coefficient P04.48 coefficient of output current closed-loop...
  • Page 175 GD350A series high-performance multifunction VFD Function Name Description Default Modify code terminal 9: External fault input 10: Frequency increase (UP) 11: Frequency decrease (DOWN) 12: Clear frequency increase/decrease setting 13: Switch-over between setup A and setup B 14: Switch-over between combination setting and A setting 15: Switch-over between combination setting and setup B...
  • Page 176 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 42: Source of upper torque limit switches to keypad 56: Emergency stop 57: Motor over-temperature fault input 59: Switch to V/F control 60: Switch to FVC control 61: PID polarity switch-over 66: Zero out encoder counting 67: Pulse increase 68: Enable pulse superimposition...
  • Page 177 GD350A series high-performance multifunction VFD Function Name Description Default Modify code with the direction. This mode is widely used. The defined FWD/REV terminal command determines the motor rotation direction. Running command Stop Forward running Reverse running Hold 1: Two-wire control 2, the enabling separated from the direction.
  • Page 178 GD350A series high-performance multifunction VFD Function Name Description Default Modify code running: Previous Present direction direction Run forward Run reversely → ON Run forward reversely Run forward ON→ reversely Run forward Run reversely ON→ Decelerate to stop Sin: Three-wire control; FWD: Forward running;...
  • Page 179 GD350A series high-performance multifunction VFD Function Name Description Default Modify code forward reversely OFF→ON reversely ON→ Decelerate to stop Sin: Three-wire control; FWD: Forward running; REV: Reverse running Note: For two-wire controlled running mode, when the FWD/REV terminal is valid, if the VFD stops due to a stop command given by another source, the VFD does not run again after the stop command disappears even if the...
  • Page 180 GD350A series high-performance multifunction VFD Function Name Description Default Modify code HDIA switch-on P05.20 0.000s ○ delay HDIA switch-off P05.21 0.000s ○ delay HDIB switch-on P05.22 0.000s ○ delay HDIB switch-off P05.23 0.000s ○ delay P05.24 AI1 lower limit 0.00V The function codes define the relationship ○...
  • Page 181 GD350A series high-performance multifunction VFD Function Name Description Default Modify code middle value 2 but may reduce the sensitivity of analog input. Note: AI1 supports the 0–10V/0–20mA input. P05.35 AI2 upper limit 10.00V ○ When AI1 selects the 0–20mA input, the corresponding voltage of 20mA is 10V.
  • Page 182 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 0: Input set through frequency HDIB high-speed 1: Reserved P05.44 pulse input function ◎ 2: Input set through encoder, used together selection with HDIA HDIB lower limit 0.000 P05.45 0.000 kHz –...
  • Page 183 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 5: VFD in fault 6: Frequency level detection FDT1 7: Frequency level detection FDT2 8: Frequency reached 9: Running in zero speed 10: Upper limit frequency reached 11: Lower limit frequency reached 12: Ready for running 13: Pre-exciting 14: Overload pre-alarm...
  • Page 184 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 38–40: Reserved 41: C_Y1 from PLC (Set P27.00 to 1.) 42: C_Y2 from PLC (Set P27.00 to 1.) 43: C_HDO from PLC (Set P27.00 to 1.) 44: C_RO1 from PLC (Set P27.00 to 1.) 45: C_RO2 from PLC (Set P27.00 to 1.) 46: C_RO3 from PLC (Set P27.00 to 1.) 47: C_RO4 from PLC (Set P27.00 to 1.)
  • Page 185 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 1: Set frequency (0–Max. output frequency) 2: Ramp reference frequency (0–Max. output frequency) 3: Rotational speed (0–Speed corresponding to max. output frequency) 4: Output current (0–Twice the VFD rated current) 5: Output current (0–Twice the motor rated current)
  • Page 186 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 24: Set frequency (bipolar, 0–Max. output frequency) 25: Ramp reference frequency (bipolar, 0– Max. output frequency) 26: Rotational speed (bipolar, 0–Speed corresponding to max. output frequency) Value through EtherCat/Profinet/EtherNetIP (0–1000) 28: C_AO1 (Set P27.00 to 1.
  • Page 187 GD350A series high-performance multifunction VFD Function Name Description Default Modify code P06.26 HDO output lower P06.27 -300.0%–P06.29 0.0% ○ limit HDO output P06.28 corresponding to 0.00–50.00kHz 0.00kHz ○ lower limit HDO output upper P06.29 P06.27–300.0% 100.0% ○ limit HDO output 50.00 P06.30 corresponding to...
  • Page 188 GD350A series high-performance multifunction VFD Function Name Description Default Modify code enter the interface. Note: Restoring the default values may delete the user password. Exercise caution when using this function. P07.01 Reserved Range: 0x00–0x27 Ones place: Function of QUICK/JOG 0: No function 1: Jog 2: Reserved Key function...
  • Page 189 GD350A series high-performance multifunction VFD Function Name Description Default Modify code P07.08 0.1–999.9% Rotational speed Mechanical rotation speed = 120 * (Displayed P07.09 100.0% ○ display coefficient running frequency) *×P07.09/(Number of motor pole pairs) 0.1–999.9% Linear speed P07.10 Linear speed = (Mechanical rotation speed) × 1.0% ○...
  • Page 190 GD350A series high-performance multifunction VFD Function Name Description Default Modify code P07.30 3rd-last fault type 3: Inverter unit W-phase protection (OUt3) ● 4: Overcurrent during acceleration (OC1) P07.31 4th-last fault type ● 5: Overcurrent during deceleration (OC2) 6: Overcurrent during constant speed running (OC3) 7: Overvoltage during acceleration (OV1) 8: Overvoltage during deceleration (OV2)
  • Page 191 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 38: Encoder direction reversal fault (ENC1D) 39: Encoder Z-pulse disconnection fault (ENC1Z) 40: Safe torque off (STO) 41: Channel 1 safety circuit exception (STL1) 42: Channel 2 safety circuit exception (STL2) 43: Exception in both channels 1 and 2 (STL3) 44: Safety code FLASH CRC fault (CrCE) 45: PLC card customized fault 1 (P-E1)
  • Page 192 GD350A series high-performance multifunction VFD Function Name Description Default Modify code (OtE1) 71: Expansion card PT1000 overtemperature (OtE2) 72: EthernetIP communication timeout (E- EIP) Running frequency P07.33 0.00Hz ● at present fault Ramp reference P07.34 frequency at 0.00Hz ● present fault Output voltage at P07.35 ●...
  • Page 193 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Input terminal P07.47 ● status at last fault Output terminal P07.48 ● status at last fault Running frequency P07.49 0.00Hz ● at 2nd-last fault Ramp reference P07.50 frequency at 2nd- 0.00Hz ●...
  • Page 194 GD350A series high-performance multifunction VFD Function Name Description Default Modify code of jog reference frequency during jogging. Setting range: 0.00Hz–P00.03 (Max. output frequency) ACC time for jogging means the time needed Model P08.07 ACC time for jog ○ for the VFD to accelerate from 0Hz to the max. depended output frequency (P00.03).
  • Page 195 GD350A series high-performance multifunction VFD Function Name Description Default Modify code If the running frequency is greater than P08.19, switch to ACC/DEC time 2. Frequency threshold of the P08.20 0.00–50.00Hz 2.00Hz ○ start of droop control 0: Max. output frequency Reference 1: Set frequency P08.21...
  • Page 196 GD350A series high-performance multifunction VFD Function Name Description Default Modify code drop control used to balance the power when several motors drive a same load. Setting range: 0.00–50.00Hz 0x00–0x14 Ones place: Switchover channel 0: Terminal 1: Modbus/Modbus TCP communication PROFIBUS/CANopen/DeviceNET Channel for communication switching between...
  • Page 197 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Setting range of P08.34: 0.00Hz–P00.03 (Max. output frequency) Setting range of P08.35: 0.0–100.0% (FDT2 electrical level) When the output frequency is within the detection range, the multifunction digital output terminal outputs signal...
  • Page 198 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 1: PWM mode 2, 3PH modulation Tens place: PWM low-speed carrier limit 0: Low-speed carrier limit mode 1 1: Low-speed carrier limit mode 2 2: No limit Hundreds place: Deadzone compensation method 0: Compensation method 1 1: Compensation method 2...
  • Page 199 GD350A series high-performance multifunction VFD Function Name Description Default Modify code multi-step speed running has the priority Hundreds place: Action selection for stop 0: Setting is valid. 1: Valid during running, cleared after stop 2: Valid during running, cleared after a stop command is received Frequency increment integral...
  • Page 200 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 100–150: A greater coefficient indicates greater braking strength. The VFD can quickly slow down the motor by increasing the magnetic flux. The energy generated by the motor during braking can be transformed into heat energy by increasing the magnetic flux.
  • Page 201 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 4: ACC/DEC time 4 P09 group–– PID control When the frequency command selection (P00.06, P00.07) is 7 or the voltage setting channel selection ((P04.27) is 6, the VFD is process PID controlled.
  • Page 202 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 4: Modbus/Modbus TCP communication PROFIBUS/CANopen/DevicneNET communication 6: Ethernet communication 7: HDIB EtherCat/Profinet/EtherNetIP communication 9: Programmable expansion card 10: Reserved Note: The reference channel and feedback channel cannot be duplicate. Otherwise, effective PID control cannot be achieved.
  • Page 203 GD350A series high-performance multifunction VFD Function Name Description Default Modify code regulator (ignoring integral and differential actions), after undergoing continuous regulation during this time period, can reach max. output frequency (P00.03) or max. voltage (P04.31). The shorter the integral time, the stronger the regulation intensity.
  • Page 204 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Deviation Feedback limit Reference Time t Output frequency f Time t Setting range: 0.0–100.0% Upper limit value of The two function codes are used to set the P09.09 100.0% ○...
  • Page 205 GD350A series high-performance multifunction VFD Function Name Description Default Modify code reaches upper/lower limit Tens place: 0: The same with the main reference direction 1: Contrary to the main reference direction Hundreds place: 0: Limit based on the max. frequency 1: Limit based on A frequency Thousands place: 0: A+B frequency, acceleration /DEC of main...
  • Page 206 GD350A series high-performance multifunction VFD Function Name Description Default Modify code P09.28 P10 group––Simple PLC and multi-step speed control 0: Stop after running once; the VFD stops automatically after running for one cycle, and it can be started only after receiving running command.
  • Page 207 GD350A series high-performance multifunction VFD Function Name Description Default Modify code P10.16 Multi-step speed 7 When selecting multi-step speed running, the 0.0% ○ multi-step speed is within the range of -fmax– Running time of P10.17 0.0s(min) ○ fmax, and it can be set continuously. The step 7 start/stop of multi-step stop running is also P10.18...
  • Page 208 GD350A series high-performance multifunction VFD Function Name Description Default Modify code OFF OFF OFF OFF ON ON ON ON ON ON ON ON ON ON ON ON Step ACC/DEC time of The description is as follows (St indicates P10.34 steps 0–7 of simple step): 0x0000 ○...
  • Page 209 GD350A series high-performance multifunction VFD Function Name Description Default Modify code P08.04 and P08.05. Setting range:0x0000–0xFFFF 0: Restart from the first step, namely if the VFD stops during running (caused by stop command, fault or power down), it will run from the first step after restart.
  • Page 210 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 0: Disable 1: Enable DC bus voltage V Overvoltage stall threshold Overvoltage stall P11.03 ○ protection Time t Output frequency Time t 120–150% (standard bus voltage) (380V) 136% Overvoltage stall P11.04 ○...
  • Page 211 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Output current A Current-limit threshold Time t Output frequency f frequency Constant Acceleration speed Time t Setting range of P11.06: 50.0–200.0% Setting range of P11.07: 0.00–50.00Hz/s 0x000–0x1132 Ones place: Motor overload/underload pre-alarm,...
  • Page 212 GD350A series high-performance multifunction VFD Function Name Description Default Modify code overload pre-alarm signal will be outputted. Output current Overload pre-alarm threshold Overload pre-alarm Time t P11.10 1.0s ○ detection time Pre-alarm time t Pre-alarm time t RO1, RO2 Time t Setting range of P11.09: P11.11–200% Setting range of P11.10: 0.1–3600.0s Underload pre-...
  • Page 213 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 0.0–10.0s Used to set the speed deviation detection time. Note: Speed deviation protection is invalid when P11.15 is set to 0.0. Speed Speed deviation Actual detection P11.15 2.0s ○ value detection time Set detection...
  • Page 214 GD350A series high-performance multifunction VFD Function Name Description Default Modify code stall Proportional Used to set the proportional coefficient of the coefficient of bus voltage regulator during overvoltage stall. P11.21 voltage regulator ○ during overvoltage Setting range: 0–1000 stall Integral coefficient Used to set the integral coefficient of the bus of voltage regulator P11.22...
  • Page 215 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 1: Method 2 Tens place: 0: Reserved 1: Reserved P12 group––Parameters of motor 2 0: Asynchronous motor (AM) P12.00 Type of motor 2 ◎ 1: Synchronous motor (SM) Rated power of AM Model P12.01 0.1–3000.0kW...
  • Page 216 GD350A series high-performance multifunction VFD Function Name Description Default Modify code coefficient 4 of iron core of AM 2 Rated power of SM Model P12.15 0.1–3000.0kW ◎ depended Rated frequency of P12.16 0.01Hz–P00.03 (Max. output frequency) 50.00Hz ◎ SM 2 Number of pole P12.17 1–128...
  • Page 217 GD350A series high-performance multifunction VFD Function Name Description Default Modify code M≥400%, protection performed immediately. Time t Motor overload multiple 116 % 200 % Setting range: 20.0% –120.0% Power display calibration P12.28 0.00–3.00 1.00 ○ coefficient of motor 0: Display by motor type. In this mode, only parameters related to the present motor type Parameter display P12.29...
  • Page 218 GD350A series high-performance multifunction VFD Function Name Description Default Modify code pull-in current switchover frequency threshold. If you need to increase the starting torque, increase the value of the function code properly. Setting range: 0.0%–100.0% (of the motor rated current) Pull-in current is the pole positioning current.
  • Page 219 GD350A series high-performance multifunction VFD Function Name Description Default Modify code The function code is used to adjust the responsiveness anti-maladjustment function. If the load inertia is large, increase Maladjustment P13.11 the value of the function code properly, 0.5s ○ detection time however, the responsiveness may slow down accordingly.
  • Page 220 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 5: 38400BPS 6: 57600BPS 7: 115200BPS Note: The baud rate set on the VFD must be consistent with that on the upper computer. Otherwise, the communication fails. A greater baud rate indicates faster communication.
  • Page 221 GD350A series high-performance multifunction VFD Function Name Description Default Modify code When continuous communication is required, you can set the function code to monitor communication status. 0: Report an alarm and coast to stop 1: Keep running without reporting an alarm 2: Stop in enabled stop mode without reporting Transmission error P14.05...
  • Page 222 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 0: 50Kbps 1: 100 Kbps ◎ Master/slave CAN 2: 125Kbps P15.29 communication 3: 250Kbps baud rate selection 4: 500Kbps 5: 1M bps Master/slave CAN P15.30 communication 0.0 (invalid)–300.0s 0.0s ○...
  • Page 223 GD350A series high-performance multifunction VFD Function Name Description Default Modify code P17 group––Status viewing Displays current set frequency of the VFD. P17.00 Set frequency 50.00Hz ● Range: 0.00Hz–P00.03 Displays current output frequency of the VFD. P17.01 Output frequency 0.00Hz ● Range: 0.00Hz–P00.03 Displays current ramp reference frequency of Ramp reference...
  • Page 224 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Range: 0.0–2000.0V Displays current digital input terminal state of the VFD. Digital input P17.12 0000–03F ● terminal state Corresponds to HDIB, HDIA, S4, S3, S2 and S1 respectively Displays current digital output terminal state of the VFD.
  • Page 225 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Time elapsed of this Displays the time elapsed of this run. P17.26 ● Range: 0–65535min Simple PLC and Displays simple PLC and current step number P17.27 current step number of multi-step speed ●...
  • Page 226 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Function code in P17.39 parameter 0.00–99.00 0.00 ● download error Ones place: Control mode 0: Vector control 0 1: Vector control 1 2: Space voltage vector control 3: Closed-loop vector control Tens place: Control status P17.40 Motor control mode ●...
  • Page 227 GD350A series high-performance multifunction VFD Function Name Description Default Modify code source Frequency set by B P17.50 0.00–P00.03 0.00Hz ● source PID proportional P17.51 -100.0%–100.0% 0.00% ● output P17.52 PID integral output -100.0%–100.0% 0.00% ● PID differential P17.53 -100.0%–100.0% 0.00% ●...
  • Page 228 GD350A series high-performance multifunction VFD Function Name Description Default Modify code value Range: 0–65535 Deviation between current reference position P18.07 Position deviation and actual running position. ● Range: -32768–32767 Position of reference point of Z pulse when the Position of position P18.08 spindle stops accurately.
  • Page 229 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Range: -3276.8–3276.7Hz Pulse command (A2, B2 terminal) is converted to the set frequency, and it is valid Pulse command P18.18 under pulse position mode and pulse speed 0.00Hz ● feedforward mode.
  • Page 230 GD350A series high-performance multifunction VFD Function Name Description Default Modify code pulse value Pulse-given main control board P18.32 -3276.8–3276.7Hz 0.0Hz ● measured speed value Pulse-given PG P18.33 card measured -3276.8–3276.7Hz 0.0Hz ● speed value Present encoder P18.34 0–63 ● filter width P18.35 Reserved 0–65535...
  • Page 231 GD350A series high-performance multifunction VFD Function Name Description Default Modify code expansion card at slot 1 Software version of P19.04 expansion card at 0.00–655.35 0.00 ● slot 2 Software version of P19.05 expansion card at 0.00–655.35 0.00 ● slot 3 Terminal input P19.06 status of expansion...
  • Page 232 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 1: Reverse Detection time of Detection time of encoder offline fault. P20.03 2.0s ○ encoder offline fault Setting range: 0.0–10.0s Detection time of Detection time of encoder reversal fault. P20.04 encoder reversal 0.8s...
  • Page 233 GD350A series high-performance multifunction VFD Function Name Description Default Modify code pulse motor pole position. Setting range: 0.00–359.99 Relative electric angle of encoder position and Initial angle of the P20.10 motor pole position. 0.00 ○ pole Setting range: 0.00–359.99 0–3 1: Rotary autotuning (DC brake) Autotuning of initial 2: Static autotuning (suitable for resolver-type...
  • Page 234 GD350A series high-performance multifunction VFD Function Name Description Default Modify code division output filter 0: No filter 1: Filter Bit3: Reserved Bit4: Enable/disable pulse reference filter 0: No filter 1: Filter Bit5: Pulse reference filter mode (valid when Bit4 is set to 1) 0: Self-adaptive filter 1: Use P20.19 filter parameter Bit6: Frequency-divided output source setting...
  • Page 235 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 0: Speed control 1: Position control Tens place: Position command source 0: Pulse string, using PG card terminal (A2, B2) pulse giving signal for position control 1: Digital position, using the setting of P21.17 for position control, while the positioning mode can be set through P21.16 2: Positioning of photoelectric switch during...
  • Page 236 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 2: A: Positive pulse Channel A is positive pulse; channel B needs no wiring 3: A/B dual-channel pulse; channel A pulse edge counts up, channel B pulse edge counts down Tens place: Pulse direction Bit0: Set pulse direction...
  • Page 237 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 0: No switching 2: Torque command 3: Speed command 3–5: Reserved Torque command Setting range: 0.0–100.0% (of the motor rated P21.05 level during position 10.0% ○ torque) gain switchover Speed command P21.06 level during position...
  • Page 238 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Position 0.0–3200.0ms P21.14 feedforward filter For pulse string reference only (position 3.0ms ○ time constant control) The position feedforward filter time constant Position command P21.15 during pulse string positioning. 0.0ms ◎...
  • Page 239 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 0: Pulse signal 1: Level signal Bit9: Position source 0: P21.17 setting 1: PROFIBUS/CANopen setting Bit10: Whether to save encoder pulse counting value at power failure 0: Not save 1: Save Bit11: Reserved Bit12: Positioning curve selection (reserved)
  • Page 240 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Home position P21.24 0–65535 ○ offset The hold time of positioning completion signal, Hold time of the function code is also valid for positioning P21.25 positioning 0.200s ○ completion signal of spindle orientation. completion signal Setting range: 0.000–60.000s Pulse superposition...
  • Page 241 GD350A series high-performance multifunction VFD Function Name Description Default Modify code It is the filter time constant detected by pulse Speed feedforward string when the speed reference source is set filter time constant P21.29 pulse string (when P00.06=12 10.0ms ○ (pulse string speed P00.07=12 mode)
  • Page 242 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 0: Calibrate at the first time 1: Calibrate in real time Bit8: Action selection after zeroing signal cancellation (electric level type) 0: Switch to speed mode 1: Position lock mode Bit9: Positioning completion signal selection 0: Electric level signal 1: Pulse signal...
  • Page 243 GD350A series high-performance multifunction VFD Function Name Description Default Modify code division angle 2 Spindle scale- P22.09 Setting range: 0.00–359.99 45.00 ○ division angle 3 Spindle scale- P22.10 Setting range: 0.00–359.99 60.00 ○ division angle 4 Spindle scale- P22.11 Setting range: 0.00–359.99 90.00 ○...
  • Page 244 GD350A series high-performance multifunction VFD Function Name Description Default Modify code frequency of analog zero drift of rigid tapping P22.22 Reserved 0–1 ○ P22.23– Reserved 0–65535 ○ P22.24 P23 group––Vector control of motor 2 parameters P23.00–P23.05 Speed-loop P23.00 20.0 ○ applicable only to vector control mode.
  • Page 245 GD350A series high-performance multifunction VFD Function Name Description Default Modify code demands. Setting range of P23.00: 0.0–200.0 Setting range of P23.01: 0.000–10.000s Setting range of P23.02: 0.00Hz–P23.05 Setting range of P23.03: 0.0–200.0 Setting range of P23.04: 0.000–10.000s Setting range of P23.05: P23.02–P00.03 (Max.
  • Page 246 GD350A series high-performance multifunction VFD Function Name Description Default Modify code coefficient high-frequency switching threshold, current-loop PI parameters are P23.12 and P23.13. Current-loop high- Setting range of P23.12: 0–65535 P23.14 frequency switching 100.0% ○ Setting range of P23.13: 0–65535 threshold Setting range of P23.14: 0.0–100.0% (of the max.
  • Page 247 GD350A series high-performance multifunction VFD Function Name Description Default Modify code between encoder encoder is not installed on the motor shaft mounting shaft and and the drive ratio is not 1. motor Setting range: 0.001–65.535 Bit0: Enable Z pulse calibration Bit1: Enable encoder angle calibration Bit2: Enable SVC speed measurement Bit3: Reserved...
  • Page 248 GD350A series high-performance multifunction VFD Function Name Description Default Modify code measurement 1: Optimization mode 1 optimization 2: Optimization mode 2 selection CD signal zero P24.13 0–65535 ○ offset gain Ones place: Incremental encoder 0: without UVW Encoder type 1: with UVW P24.14 0x00 ◎...
  • Page 249 GD350A series high-performance multifunction VFD Function Name Description Default Modify code 0: Encoder signals 1: Pulse reference signals Bits7–15: Reserved 0–63 Encoder pulse filter P24.18 The filtering time is P24.18*0.25us. The value ○ width 0 or 1 indicates 0.25μs. 0–63 Pulse reference P24.19 The filtering time is P24.19*0.25us.
  • Page 250 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Expansion card P25.08 input terminal 0x00–0x7F 0x00 ○ polarity selection 0x000–0x7F (0: Disable, 1: Enable) BIT0: S5 virtual terminal BIT1: S6 virtual terminal Virtual terminal BIT2: S7 virtual terminal P25.09 setting of expansion 0x00...
  • Page 251 GD350A series high-performance multifunction VFD Function Name Description Default Modify code P25.23 S10 switch-off delay 0.000s ○ P25.24 AI3 lower limit The function codes define the relationship 0.00V ○ between the analog input voltage and its Corresponding corresponding setting. When the analog input P25.25 setting of AI3 lower 0.0%...
  • Page 252 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Setting range of P25.29: 0.00V–P25.31 Setting range of P25.30: -300.0%–300.0% Setting range of P25.31: P25.29–10.00V Setting range of P25.32: -300.0%–300.0% Setting range of P25.33: 0.000s–10.000s HDI3 high-speed 0: Input set through frequency P25.34 ◎...
  • Page 253 GD350A series high-performance multifunction VFD Function Name Description Default Modify code P26.08 RO7 output ○ P26.09 RO8 output ○ P26.10 RO9 output ○ P26.11 RO10 output ○ Expansion card 0x0000–0x7FF P26.12 output terminal RO10, RO9…RO3, HDO2, Y3, Y2 0x000 ○ polarity sequence HDO2 switch-on...
  • Page 254 GD350A series high-performance multifunction VFD Function Name Description Default Modify code RO8 switch-off P26.30 0.000s ○ delay RO9 switch-on P26.31 0.000s ○ delay RO9 switch-off P26.32 0.000s ○ delay RO10 switch-on P26.33 0.000s ○ delay RO10 switch-off P26.34 0.000s ○ delay P26.35 AO2 output...
  • Page 255 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Setting range of P26.46: 0.00V–10.00V Setting range of P26.47: 0.000s–10.000s P26.48– 0–65535 Reserved ○ P26.52 P28 group––Master/slave control 0: Master/slave control is invalid P28.00 Master/slave mode 1: The local machine is a master ◎...
  • Page 256 GD350A series high-performance multifunction VFD Function Name Description Default Modify code Speed/torque mode 5.00Hz ○ switching frequency P28.05 point in 0.00–10.00Hz master/slave mode P28.06 Slave count 0–15 ◎ P28.07– Reserved 0–65535 ○ P28.24 0: Invalid 1: Fire mode 1 2: Fire mode 2 When P90.00=0, the fire mode is invalid, and the normal running mode is used.
  • Page 257 GD350A series high-performance multifunction VFD Function Name Description Default Modify code P91 group––Customized function group 2 P91.00– Reserved 0–65535 ○ P91.39 P92 group––Customized function group 3 P92.00– Reserved 0–65535 ○ P92.39 P93 group––Customized function group 4 P93.00– Reserved 0–65535 ○ P93.39 -252-...

  • Page 258: Troubleshooting

    GD350A series high-performance multifunction VFD 7 Troubleshooting 7.1 What this chapter contains The chapter instructs you how to reset faults and check faults history. A complete list of alarms and fault information as well as possible causes and corrective measures are presented in this chapter. ...
  • Page 259 GD350A series high-performance multifunction VFD Fault Fault type Possible cause Solution code protection peripheral equipment Inverter unit OUt3 Phase-W protection Over-voltage Check input power; during Check whether load acceleration Exception occurred to input deceleration time is too short; Over-voltage voltage; or the motor starts during during Large energy feedback;...
  • Page 260 GD350A series high-performance multifunction VFD Fault Fault type Possible cause Solution code Load is too large; Select the VFD with larger Power is too small; power; Select proper motor Phase loss on Phase loss or violent fluctuation Check the input power; input side occurred to R, S and T input Check installation wiring...
  • Page 261 GD350A series high-performance multifunction VFD Fault Fault type Possible cause Solution code the rated frequency R/W error occurred to the control Press STOP/RST to reset; EEPROM fault parameters; Replace the main control board EEPROM is damaged Check PID feedback signal PID feedback PID feedback offline;...
  • Page 262 GD350A series high-performance multifunction VFD Fault Fault type Possible cause Solution code circuit fault 1 to the ground; proper; Current detection circuit is faulty; Replace the hall component; Actual motor power setup Replace the main control board; deviates sharply from the VFD Reset the motor parameters power properly...
  • Page 263 GD350A series high-performance multifunction VFD Fault Fault type Possible cause Solution code occurred to resistor; sensor is proper; Long-time overload running or Check the motor and perform exception occurred maintenance on the motor Safe torque off function is enabled Safe torque off by external forces Check whether terminal wiring The wiring of STO is improper;...
  • Page 264 GD350A series high-performance multifunction VFD Fault Fault type Possible cause Solution code Check whether the insertion port is damaged, if yes, replace the insertion port after power down Confirm whether the expansion card inserted can be supported; Stabilize the expansion card Failed to identify interfaces after power down, There is data transmission in...
  • Page 265 GD350A series high-performance multifunction VFD Fault Fault type Possible cause Solution code in card slot 2 and confirm whether fault still occurs at next power-on; Check whether the insertion port is damaged, if yes, replace the insertion port after power down Confirm whether the expansion card inserted can be supported;...
  • Page 266 GD350A series high-performance multifunction VFD Fault Fault type Possible cause Solution code Check whether the master/slave communication card wiring is There is no data transmission communication loose or dropped ESCAN between the CAN master and card slave communication cards communication timeout fault Master-slave Detect the CAN slave VFD and...

  • Page 267: Analysis On Common Faults

    GD350A series high-performance multifunction VFD 7.6 Analysis on common faults 7.6.1 Motor fails to work Motor fails to work Whether the POWER Whether the air switch indicator is on? Close the air and EM contactor on the Whether the keypad contactor input side are closed? displays information?
  • Page 268 GD350A series high-performance multifunction VFD 7.6.2 Motor vibrates Motor vibrates or emits an unusual sound Whether the motor Set the motor type parameters and motor type and parameters are set correctly ? correctly Whether autotuning is Perform autotuning performed? Whether the V/F Whether it is vector vibration parameter is control?
  • Page 269 GD350A series high-performance multifunction VFD 7.6.3 Overvoltage Overvoltage fault Whether the voltage of the Ensure the power supply power supply is within the meets the requirement standard range? Whether UVW on the output side of the VFD is short to Rectify the short-circuit ground? fault and perform the...
  • Page 270 GD350A series high-performance multifunction VFD 7.6.5 Unusual heating of motor Unusual heating of the motor Set the motor Whether the motor parameters are set parameters correctly correctly? Whether parameter Parameter autotuning is autotune performed? Whether the VFD runs at a low speed all the time? Whether it is a variable- Use a variable-...
  • Page 271 GD350A series high-performance multifunction VFD 7.6.6 VFD overheating VFD overheating Whether the load is too Reduce the load and heavy or the capacity of increase the capacity the VFD is too small? of the inverter Whether the ambient Add a cooling device temperature is too or derate the VFD high?
  • Page 272 GD350A series high-performance multifunction VFD 7.6.7 Motor stalls during ACC Motor stalls during Whether the ACC Increase the ACC time is too short? time Check the voltage of the Use larger cables, shorten the terminals of the motor with a wiring distance, adjust the voltage multimeter.

  • Page 273: Countermeasures On Common Interference

    GD350A series high-performance multifunction VFD 7.6.8 Overcurrent Overcurrent Whether UVW on the Rectify the short-to- output side of the VFD is ground fault, and short to ground? Remove configure the motor the motor cable and cables properly checked whether it is connected to earth.
  • Page 274 GD350A series high-performance multifunction VFD started: 1. The upper or lower limit is wrongly displayed, for example, 999 or -999. 2. The display of values jumps (usually occurring on pressure transmitters). 3. The display of values is stable, but there is a large deviation, for example, the temperature is dozens of degrees higher than the common temperature (usually occurring on thermocouples).
  • Page 275 GD350A series high-performance multifunction VFD external C2 filter on the input power end of the VFD. For models of filters, see the filter model selection section D.7.2 Filter model selection. 7.7.2 Interference on RS485 communication Interference phenomenon The interference described in this section on 485 communication mainly includes communication delay, synchronization failure, occasional power-off, or complete power-off that occurs after the VFD is started.
  • Page 276 GD350A series high-performance multifunction VFD Try to add a safety capacitor of 0.1 μF on the power terminal of the upper computer (PLC, HMI, and touch screen). During this process, pay attention to the voltage of the power supply and the voltage endurance capability of the capacitor.
  • Page 277 GD350A series high-performance multifunction VFD difference between two actions need to be longer than 20 ms. For example, 1s, 0.5s, and 0.2s. For circuits in VFD systems, electromagnetic RCDs are recommended. Electromagnetic RCDs have strong anti-interference capability, and thus can prevent the impact of high-frequency leakage current.

  • Page 278: Maintenance

    GD350A series high-performance multifunction VFD 8 Maintenance 8.1 What this chapter contains This chapter describes how to carry out preventive maintenance on the VFD. 8.2 Periodical inspection Only little maintenance is required when the VFD is installed in an environment that meets the requirements.
  • Page 279 GD350A series high-performance multifunction VFD Subject Item Method Criterion properly. Check whether the conductors are deformed or No exception Visual inspection their color change due to occurs. Conductor and overheat. wire Check whether the wire No exception sheaths are cracked or their Visual inspection occurs.

  • Page 280: Cooling Fan

    GD350A series high-performance multifunction VFD Subject Item Method Criterion relay workshop. Check whether the contacts No exception Visual inspection are in good contact. occurs. Check whether the screws No exception Screw them up. and connectors loose. occurs. Check whether there is Olfactory and visual No exception unusual smell or...

  • Page 281: Capacitor

    GD350A series high-performance multifunction VFD You can view the running duration of the VFD through P07.14 (Accumulated running time). The increase of the bearing noise indicates a fan fault. If the VFD is applied in a key position, replace the fan once the fan starts to generate unusual noise. You can purchase spare parts of fans from INVT. Cooling fan replacement ...
  • Page 282 GD350A series high-performance multifunction VFD Storage time Operation instruction Less than 1 year No charging operation is required. The VFD needs to be powered on for 1 hour before the first running 1 to 2 years command. Use a voltage controlled power supply to charge the VFD: Charge the VFD at 25% of the rated voltage for 30 minutes, and then 2 to 3 years charge it at 50% of the rated voltage for 30 minutes, at 75% for another...

  • Page 283: Power Cable

    GD350A series high-performance multifunction VFD Resistor 1 KΩ/100 W Power supply Resistor 1 KΩ/100 W 380 V Resistor 1 KΩ/100 W Figure 8.2 Charging circuit example of driving devices 8.4.2 Electrolytic capacitor replacement  Read the safety precautions carefully and follow the instructions to perform operations.

  • Page 284: Communication

    GD350A series high-performance multifunction VFD 9 Communication 9.1 What this chapter contains This chapter describes the communication protocols supported by the VFD. The VFD provides RS485 communication interfaces and adopts the master/slave communication based on the international standard Modbus communication protocol. You can implement centralized control (setting commands for controlling the VFD, modifying the running frequency and related function parameters, and monitoring the running status and fault information of the VFD) through PC/PLC, upper control computers, or other devices to meet specific application requirements.
  • Page 285 GD350A series high-performance multifunction VFD Max. transmission Max. transmission Baud rate (bps) Baud rate (bps) distance (meter) distance (meter) 2400BPS 1800m 9600BPS 800m 4800BPS 1200m 19200BPS 600m When RS485 interfaces are used for long-distance communication, it is recommended that you use shielded cables, and use the shielding layer as the ground wires.
  • Page 286 GD350A series high-performance multifunction VFD 120Ω 120Ω 32 # Figure 9.2 Onsite chrysanthemum connection diagram Master Figure 9.3 Simplified chrysanthemum connection diagram Shielded twisted pair 120Ω 485 + 485+ 485 + Terminal resistor 485- 485 - 485- Ground Ground Ground RS232- 485 Converter INVT...
  • Page 287 GD350A series high-performance multifunction VFD Figure 9.5 Star connection Use shielded cables, if possible, in multi-VFD connection. The baud rates, data bit check settings, and other basic parameters of all the devices on the RS485 line must be set consistently, and addresses cannot be repeated.
  • Page 288 GD350A series high-performance multifunction VFD to facilitate the transmission of the data bits to the destination device. In practical applications, you must set the data bits, parity check bits, and stop bits consistently. In RTU mode, a new frame always must be preceded by a time gap with a minimum length of 3.5 bytes.
  • Page 289 GD350A series high-performance multifunction VFD may cause severe problems. Therefore, the data must be checked. The check is implemented as follows: The transmitter calculates the to-be-transmitted data based on a specific algorithm to obtain a result, adds the result to the rear of the message, and transmits them together.

  • Page 290: Rtu Command Code And Communication Data

    GD350A series high-performance multifunction VFD bit) is detected and processed, the XOR operation is performed on the next 8-bit byte and the current content in the register. The final values in the register are the CRC values obtained after operations are performed on all the bytes in the frame.
  • Page 291 GD350A series high-performance multifunction VFD frame structures are described in the following. RTU master command (sent from the master to the VFD): START T1-T2-T3-T4 (time gap with a min. length of 3.5 bytes) ADDR (address) CMD (command code) Start address high-order bit Start address low-order bit Data count high-order bit Data count low-order bit...
  • Page 292 GD350A series high-performance multifunction VFD High-order bit of data in 0004H T1-T2-T3-T4 (time gap with a min. length of 3.5 bytes) The definition of the response information is described as follows: "ADDR" is "01H", indicating that the message is sent from the VFD whose address is 01H. The ADDR information occupies one byte.
  • Page 293 GD350A series high-performance multifunction VFD 3.5 bytes) ADDR High-order bit of data writing address Low-order bit of data writing address Data content high-order bit Data content low-order bit CRC low-order bit CRC high-order bit T1-T2-T3-T4 (time gap with a min. length of 3.5 bytes) Note: Sections 9.4.1 and 9.4.2 mainly describe the command formats.
  • Page 294 GD350A series high-performance multifunction VFD T1-T2-T3-T4 (time gap with a min. length of START 3.5 bytes) ADDR Sub-function code high-order bit Sub-function code low-order bit Data content high-order bit Data content low-order bit CRC CHK low-order bit CRC CHK high-order bit T1-T2-T3-T4 (time gap with a min.
  • Page 295 GD350A series high-performance multifunction VFD 3.5 bytes) ADDR High-order bit of data writing address Low-order bit of data writing address Data count high-order bit Data count low-order bit CRC low-order bit CRC high-order bit T1-T2-T3-T4 (time gap with a min. length of 3.5 bytes) 9.4.5 Data address definition This section describes the address definition of communication data.
  • Page 296 GD350A series high-performance multifunction VFD regardless of the VFD status. Pay attention to the setting range, unit, and description of a parameter when modifying it. The service life of the Electrically Erasable Programmable Read-Only Memory (EEPROM) may  be reduced if it is frequently used for storage. Some function codes do not need to be stored during communication.
  • Page 297 GD350A series high-performance multifunction VFD Function Address Data description Setting of the upper limit of the reverse running 2006H frequency (0–Fmax, unit: 0.01 Hz) Upper limit of the electromotion torque (0–3000, 2007H 1000 corresponding to 100.0% of the motor rated current) Upper limit of the brake torque (0–3000, 1000 2008H...
  • Page 298 GD350A series high-performance multifunction VFD Function Address Data description 0004H: Faulty 0005H: POFF 0006H: Pre-excited Bit0: =0: Not ready to run =1: Ready to run Bi1–2: =00: Motor 1 =01: Motor 2 Bit3: =0: Asynchronous motor =1: Synchronous motor Bit4: =0: No overload alarm =1: Overload alarm Bit5–Bit6: =00: Keypad-based control =01: Terminal-based control...
  • Page 299 GD350A series high-performance multifunction VFD Function Address Data description Closed-loop setting 3008H -100.0–100.0% (Unit: 0.1%) 3009H -100.0–100.0% (Unit: 0.1%) Closed-loop feedback 000–3F Input state 300AH Corresponding to the local HDIB/ HDIA/S4/S3/S2/S1 000–0F Output state 300BH Corresponding local RO2/RO1/HDO/Y1 Analog input 1 300CH 0.00–10.00V (Unit: 0.01V) Analog input 2...
  • Page 300 GD350A series high-performance multifunction VFD reference source" (P09.00) to Modbus communication. The following table describes the encoding rules of device codes (corresponding to the identification code 2103H of the VFD). Eight high- Eight low- order bits of Meaning order bits of Meaning code code...
  • Page 301 GD350A series high-performance multifunction VFD 01 14 00 32 49 E7 Parameter Parameter Write address command address data After receiving the command, the VFD converts 50 into 5.0 based on the fieldbus scale, and then sets "Wake-up-from-sleep delay" to 5.0s. For another example, after the upper computer transmits the "Wake-up-from-sleep delay"...
  • Page 302 GD350A series high-performance multifunction VFD Code Name Description failure example, a function input terminal cannot be set repeatedly. Password The password entered in the password verification address is different error from that set in P07.00. The length of the data frame transmitted by the upper computer is Data frame incorrect, or in the RTU format, the value of the CRC check bit is error...
  • Page 303 GD350A series high-performance multifunction VFD 00 01 00 03 98 0B Parameter Parameter Read data address address command However, the setting range of the "Running command channel" is 0 to 2. The value 3 exceeds the setting range. In this case, the VFD returns an error message response as shown in the following: 43 A3 Exception Error code...
  • Page 304 GD350A series high-performance multifunction VFD Assume that the following response is returned: 03 03 0C 00 23 00 23 00 23 00 23 00 23 00 23 5F D2 5th-last fault 4th-last fault Last fault 2nd-last fault 3rd-last fault Read Number of Present type...
  • Page 305 GD350A series high-performance multifunction VFD Function Setting Name Description Default Modify code range Max. output P00.04–600.00H 100.00– P00.03 50.00Hz ◎ frequency (400.00Hz) 600.00 According to the number of decimals, the fieldbus scale of the "Max. output frequency" (P00.03) is 100. Multiply 100 Hz by 100. The value 10000 is obtained, and it is 2710H in the hexadecimal form. The command transmitted by the master is as follows: 00 03 27 10...
  • Page 306 GD350A series high-performance multifunction VFD Function Address Data description 0007H: Fault reset 0008H: Jogging to stop Communication-based frequency setting (0– 2001H Fmax, unit: 0.01 Hz) Communication-based value setting PID setting, range (0–1000, 1000 2002H corresponding to 100.0%) In the actual operation, set P00.01 to 2 and P00.06 to 8. The command transmitted by the master is as follows: 20 00 00 02...
  • Page 307 GD350A series high-performance multifunction VFD 00 0B 00 02 30 0A Parameter Continuous Parameter address write address quantity command Note: In the preceding command description, spaces are added to a command just for explanatory purposes. In practical applications, no space is required in the commands. 9.4.8.4 Modbus communication commissioning example A PC is used as the host, an RS232-RS485 converter is used for signal conversion, and the PC serial port used by the converter is COM1 (an RS232 port).

  • Page 308: Common Communication Faults

    GD350A series high-performance multifunction VFD Set the address (P14.00) of the VFD to 03. Set "Channel of running commands" (P00.01) to "Communication", and set "Communication channel of running commands" (P00.02) to the Modbus communication channel. Click Send. If the line configuration and settings are correct, a response transmitted by the VFD is received as follows: 20 00 00 01...

  • Page 309: Appendix A Expansion Cards

    GD350A series high-performance multifunction VFD Appendix A Expansion cards A.1 Model definition EC-PG 5 01-05 ① ② ③ ④ ⑤ Field Field Naming example identifier description Product EC: Expansion card ① category PG: PG card PC: PLC programmable card Card category ②...
  • Page 310 GD350A series high-performance multifunction VFD EC-PC 5 02-00 ① ② ③ ④ ⑤ Field Field Naming example identifier description Product EC: Expansion card ① category IO: IO expansion card TX: Communication expansion card Card category ② PG: PG card PC: PLC programmable card Indicates the generation of a technical version by using odd Technical numbers, for example, 1, 3, and 5 indicate the 1...
  • Page 311 GD350A series high-performance multifunction VFD 01: Bluetooth communication card 02: WIFI communication card 03: PROFIBUS communication card 05: Canopen communication card 06: DeviceNet communication card Distinguishing 07: BACnet communication card ④ code 08: EtherCat communication card 09: PROFINET communication card 10: EthernetIP communication card 11: CAN master/slave control communication card 15: MODBUS TCP communication card...
  • Page 312 GD350A series high-performance multifunction VFD optional and need to be purchased separately. Name Model Specification  4 digital inputs  1 digital output IO expansion  1 analog input EC-IO501-00 card  1 analog output  2 relay outputs: 1 double-contact output, and 1 single- contact output ...
  • Page 313 GD350A series high-performance multifunction VFD Name Model Specification antenna and applicable to sheetmetal machines. PROFIBUS-DP communication EC-TX503  Supporting the PROFIBUS-DP protocol card  Supporting Ethernet communication with INVT's Ethernet internal protocol communication EC-TX504  Can be used in combination with INVT's upper card computer monitoring software INVT Studio CANopen...
  • Page 314 GD350A series high-performance multifunction VFD Name Model Specification  Applicable to 24V OC encoders  Applicable to 24V push-pull encoders  Applicable to 5V differential encoders incremental PG EC-PG505-24  Supporting A, B, Z orthogonal input card  Supporting A, B, Z frequency-divided output ...
  • Page 315 GD350A series high-performance multifunction VFD Ethernet CANopen/CAN PROFINET Sin/Cos PG card EC- communication card master/slave control communication card PG502 EC-TX504 communication card EC-TX509 EC-TX505/511 UVW incremental Resolver PG card Multi-function 24V incremental PG PG card EC- EC-PG504-00 incremental PG card card EC-PG505-24 PG503-05 EC-PG505-12...

  • Page 316: Dimensions And Installation

    GD350A series high-performance multifunction VFD Simplified incremental PG card EC-PG507-12 A.2 Dimensions and installation All expansion cards are of the same dimensions (108 mm × 39 mm) and can be installed in the same way. Following the operation principles when installing or removing an expansion card: Ensure that no power is applied before installing the expansion card.
  • Page 317 GD350A series high-performance multifunction VFD EC 1 EC 1 EC 2 EC 2 EC 3 EC 3 EC installation diagram Diagram of ECs installed Figure A.1 7R5G/011P or higher models with expansion cards installed EC 1 EC 1 EC 2 EC 2 ECs installed ECs installing...
  • Page 318 GD350A series high-performance multifunction VFD Expansion card installation process: STEP 1 Unscrew the screws and remove th e lower cover STEP 2 STEP 3 Unscrew the screws, take out the keypad, and remove the upper cover Insert the EC STEP 4 Align the EC positioning holes and positioning studs to fix the EC STEP 5...

  • Page 319: Wiring

    GD350A series high-performance multifunction VFD A.3 Wiring 1. Ground a shielded cable as follows: Grounding position of the shielded cable Grounding position of the shielded cable Figure A.4 Expansion card grounding diagram 2. Wire an expansion card as follows: EC wiring EC wire binding position Figure A.5 Expansion card wiring A.4 IO expansion card——EC-IO501-00...
  • Page 320 GD350A series high-performance multifunction VFD The terminals are arranged as follows: CME and COM are shorted through J3 before delivery, and J5 is the jumper for selecting the output type (voltage or current) of AO2. RO3A RO3B RO3C +24V RO4A RO4C Indicator definition: Indicator...

  • Page 321: Programmable Expansion Card--Ec-Pc502-00

    GD350A series high-performance multifunction VFD Category Sign Name Function 5. Deviation:±0.5%; input of 5 V or 10 mA or higher at the temperature of 25°C 1. Output range: 0–10 V, 0–20 mA 2. Whether it is voltage or current output is AO2—GND Analog output 1 determined by J5.
  • Page 322 GD350A series high-performance multifunction VFD type input selection and voltage type input selection of AI1, and they can be selected through J2. "AIO" and "AVO" are the current type output selection and voltage type output selection of AO1, and they can be selected through J5.
  • Page 323 GD350A series high-performance multifunction VFD input, 1 analog output, and 1 RS485 communication channel (for master/slave switchover). It is user- friendly, providing relay outputs through European-type screw terminals and other inputs and outputs through spring terminals. EC-PC502-00 terminal function description: Category Sign Name...

  • Page 324: Communication Card Function Description

    GD350A series high-performance multifunction VFD Category Sign Name Function 3. Deviation ±1%, 25°C, full measuring range NO contact of PRO1A relay 1 NC contact of PRO1B relay 1 1. Contact capacity: 3A/AC 250 V, 1 A/DC 30 Common Relay PRO1C contact of relay output 2.
  • Page 325 GD350A series high-performance multifunction VFD Indicator/button Name Function card is disconnected from the control board. This indicator when Bluetooth communication is online and data exchange Bluetooth can be performed. LED2 communication state indicator It is off when Bluetooth communication is not in the online state.
  • Page 326 GD350A series high-performance multifunction VFD The wireless communication card must be used with the INVT VFD APP. Scan the QR code of the VFD nameplate to download it. For details, refer to the wireless communication card manual provided with the expansion card. The main interface is shown as follows. -321-...
  • Page 327 GD350A series high-performance multifunction VFD A.6.2 PROFIBUS-DP communication card——EC-TX503 CN1 is a 9-pin D-type connector, as shown in the following figure. Connector pin Description Unused Unused B-Line Data+ (twisted pair 1) Request sending GND_BUS Isolation ground +5V BUS Isolated power supply of 5 V DC Unused A-Line Data- (twisted pair 2)
  • Page 328 GD350A series high-performance multifunction VFD Indicator Name Function This indicator is on when the expansion card is establishing a connection with the control board; it blinks periodically after the expansion card is LED1 State indicator properly connected to the control board (the period is 1s, on for 0.5s, and off for the other 0.5s);...
  • Page 329 GD350A series high-performance multifunction VFD A.6.3 Ethernet communication card——EC-TX504 The EC-TX504 communication card adopts standard RJ45 terminals. Indicator definition: Indicator Name Function This indicator is on when the expansion card is establishing a connection with the control board; it blinks periodically after the expansion card is LED1 State indicator properly connected to the control board (the...
  • Page 330 GD350A series high-performance multifunction VFD The EC-TX505/511 communication card is user-friendly, adopting spring terminals. 3-pin spring terminal Function Description CANH CANopen bus high level signal CANG CANopen bus shielding CANL CANopen bus low level signal Terminal resistor switch function description: Terminal resistor switch Position Function...
  • Page 331 GD350A series high-performance multifunction VFD Indicator Name Function off or a fault occurs on the VFD. It is off when the communication card is in the working state. It blinks when the address setting is incorrect. It blinks once when a received frame is missed or an error occurs during frame receiving.
  • Page 332 GD350A series high-performance multifunction VFD established. Communication with the Profinet controller has been established Profinet diagnosis exists LED3 Green (System fault indicator) No Profinet diagnosis TPS-1 protocol stack has started LED4 Green Blinking TPS-1 waits for MCU initialization (Slave ready indicator) TPS-1 protocol stack does not start LED5 Manufacturer-specific - depending on...

  • Page 333: Pg Expansion Card Function Description

    GD350A series high-performance multifunction VFD Slave device 1 Slave device 2 Slave device n Master device RJ45 RJ45 RJ45 RJ45 RJ45 RJ45 Switch A.7 PG expansion card function description A.7.1 Sin/Cos PG card——EC-PG502 The terminals are arranged as follows: Indicator definition: Indicator Name Function...
  • Page 334 GD350A series high-performance multifunction VFD EC-PG502 terminal function description: Signal Port Function Voltage: 5 V ± 5% Encoder power PGND Max. output current: 150 mA 1. Supporting Sin/Cos encoders 2. SINA/SINB/SINC/SIND 0.6–1.2Vpp; SINR 0.2– 0.85Vpp Encoder interface 3. Max. frequency response of A/B signals: 200 kHz Max.
  • Page 335 GD350A series high-performance multifunction VFD Forward running PGND Forward jogging Fault reset HDIA HDIB +24V pulse A pulse B Upper computer The following figure shows the external wiring of the PG card when it is used in combination with an encoder with CD signals.
  • Page 336 GD350A series high-performance multifunction VFD A.7.2 UVW incremental PG card——EC-PG503-05 The terminals are arranged as follows: PGND Indicator definition: Indicator Name Function This indicator is on when the expansion card is establishing a connection with the control board; it blinks periodically after the expansion card is LED1 State indicator properly connected to the control board (the...
  • Page 337 GD350A series high-performance multifunction VFD Signal Port Function 1. Differential incremental PG interface of 5 V Encoder interface 2. Response frequency: 400 kHz 1. Differential input of 5 V Pulse setting 2. Response frequency: 200 kHz 1. Differential output of 5 V Frequency-divided 2.
  • Page 338 GD350A series high-performance multifunction VFD Forward running Forward jogging PGND Fault reset HDIA HDIB +24V pulse A pulse B Upper computer A.7.3 Resolver PG card——EC-PG504-00 PGND Indicator definition: Indicator Name Function This indicator is on when the expansion card is establishing a connection with the control board;...
  • Page 339 GD350A series high-performance multifunction VFD Indicator Name Function is 1s, on for 0.5s, and off for the other 0.5s); and it is off when the expansion card is disconnected from the control board. This indicator is off when the encoder is disconnected;...
  • Page 340 GD350A series high-performance multifunction VFD Forward running Forward jogging Fault reset HDIA HDIB +24V pulse A pulse B Upper computer A.7.4 Multifunction incremental PG card——EC-PG505-12 The terminals are arranged as follows: The dual in-line package (DIP) switch SW1 is used to set the voltage class (5 V or 12 V) of the power supply of the encoder.
  • Page 341 GD350A series high-performance multifunction VFD Indicator Name Function expansion card is properly connected to the control board (the period is 1s, on for 0.5s, and off for the other 0.5s); and it is off when the expansion card is disconnected from the control board.
  • Page 342 GD350A series high-performance multifunction VFD Forward running Forward jogging PGND Fault reset HDIA HDIB +24V pulse A pulse B Upper computer The following figure shows the external wiring of the expansion card used in combination with a push- pull encoder. -337-...
  • Page 343 GD350A series high-performance multifunction VFD Forward running Forward jogging PGND Fault reset HDIA HDIB +24V pulse A pulse B Upper computer The following figure shows the external wiring of the expansion card used in combination with a differential encoder. -338-...
  • Page 344 GD350A series high-performance multifunction VFD Forward running Forward jogging PGND Fault reset HDIA HDIB +24V pulse A pulse B Upper computer A.7.5 24V multi-function incremental PG card——EC-PG505-24 -339-...
  • Page 345 GD350A series high-performance multifunction VFD The terminals are arranged as follows: PGND PGND Indicator definition: Indicator Name Function This indicator is on when the expansion card is establishing a connection with the control board; it blinks periodically after State the expansion card is properly connected to the control board LED1 indicator (the period is 1s, on for 0.5s, and off for the other 0.5s);...
  • Page 346 GD350A series high-performance multifunction VFD Signal Port Function 1. Open-drain collector output Frequency-divided 2. Supporting frequency division of 1–255, which can output be set through P20.16 or P24.16 The following figure shows the external wiring of the PG card when it is used in combination with an open-drain collector encoder.
  • Page 347 GD350A series high-performance multifunction VFD Forward running Forward jogging PGND Fault reset HDIA HDIB +24V pulse A pulse B Upper computer A.7.6 Simplified incremental PG card——EC-PG507-12 The terminals are arranged as follows: The DIP switch SW1 is used to set the voltage class (5 V or 12 V) of the power supply of the encoder. The DIP switch can be operated with an auxiliary tool.
  • Page 348 GD350A series high-performance multifunction VFD Indicator Name Function (the period is 1s, on for 0.5s, and off for the other 0.5s); and it is off when the expansion card is disconnected from the control board. Disconnection This indicator is off when A1 and B1 of the encoder are LED2 indicator disconnected;...

  • Page 349: Appendix B Technical Data

    GD350A series high-performance multifunction VFD Appendix B Technical data B.1 What this chapter contains This chapter describes the technical data of the VFD and its compliance to CE and other quality certification systems. B.2 Derated application B.2.1 Capacity Choose a VFD model based on the rated current and power of the motor. To ensure the rated power of the motor, the rated output current of the VFD must be greater or equal to the rated current of the motor.

  • Page 350: Grid Specifications

    GD350A series high-performance multifunction VFD rated power. When the altitude exceeds 1000m, derate by 1% for every increase of 100m. When the altitude exceeds 3000m, consult the local INVT dealer or local INVT office for details. B.2.2.3. Derating due to carrier frequency The power of the VFD varies according to carrier frequencies.

  • Page 351: Emc Regulations

    GD350A series high-performance multifunction VFD Safety of machinery––Electrical equipment of machines. Part 1: IEC/EN 60204-1 General requirements Safety of machinery––Safety-related functional safety of electrical, IEC/EN 62061 electronic, and programmable electronic control systems Adjustable speed electrical power drive systems––Part 3:EMC IEC/EN 61800-3+A1 requirements and specific test methods IEC/EN 61800-5- Adjustable speed electrical power drive systems––Part 5-1: Safety...
  • Page 352 GD350A series high-performance multifunction VFD systems in environments of Category II. B.6.1 VFD category of C2 The induction disturbance limit meets the following stipulations: 1. Select an optional EMC filter according to "Optional peripheral accessories" and install it following the description in the EMC filter manual. 2.

  • Page 353: Appendix C Dimension Drawings

    GD350A series high-performance multifunction VFD Appendix C Dimension drawings C.1 What this chapter contains This chapter describes the dimension drawings of the VFD. The dimension unit used in the drawings is mm. C.2 Keypad structure C.2.1 Structure diagram Panel Keypad 28.5 71.3 16.8...

  • Page 354: Vfd Structure

    GD350A series high-performance multifunction VFD C.3 VFD structure Figure C.3 VFD structure diagram C.4 VFD structure C.4.1 Wall-mounting dimensions Figure C.4 1R5G/2R2P–037G/045P wall-mounting diagram -349-...
  • Page 355 GD350A series high-performance multifunction VFD H1 H2 Figure C.5 045G/055P-075/090P wall-mounting diagram H1 H2 Figure C.6 090G/110P-110G/132P wall-mounting diagram 6- ø11.0 Figure C.7 132G/160P-200G/220P wall-mounting diagram -350-...
  • Page 356 GD350A series high-performance multifunction VFD 6- ø13.0 Figure C.8 220G/250P-315G/350P wall-mounting diagram Table C.1 Wall-mounting dimensions (unit: mm) Installation VFD model hole Screw diameter 1R5G/2R2P– 2R2G/003P 004G/5R5P– 5R5G/7R5P 7R5G/011P 243.5 011G/015P– 303.5 015G/018P 018G/022P– 340.6 328.6 022G/030P 030G/037P– 037G/045P 045G/055P– 075/090P 090/110P–...
  • Page 357 GD350A series high-performance multifunction VFD C.4.2 Flange installation dimensions Figure C.9 1R5G/2R2P-075/090P flange installation diagram -352-...
  • Page 358 GD350A series high-performance multifunction VFD 98.0 Figure C.10 090G/110P-110G/132P flange installation diagram Figure C.11 132G/160P-200G/220P flange installation diagram Table C.2 380V flange installation dimensions (unit: mm) Hole VFD model W2 W3 W4 H1 H2 H3 H4 D1 Screw diameter 1R5G/2R2P– 150.2 115 130 7.5 234 220 190 13.5 185 65.5 2R2G/003P 004G/5R5P–...
  • Page 359 GD350A series high-performance multifunction VFD Hole VFD model W2 W3 W4 H1 H2 H3 H4 D1 Screw diameter 090/110P–110G/132P 418.5 389.5 361 14.2 600 370 559 108.5 330 149.5 132G/160P–200G/220P 500 180 480 60 870 850 796 37 360 178.5 -354-...
  • Page 360 GD350A series high-performance multifunction VFD C.4.3 Floor installation dimensions 3- ø13.0 6- ø12.0 Figure C.12 220G/250P–315G/355P floor installation diagram 3- ø22.0 6- ø12.0 Figure C.13 355G/400P-500G floor installation diagram Table C.3 380V floor installation dimensions (unit: mm) Hole VFD model W1 W2 W3 Screw diameter...

  • Page 361: Appendix D Optional Peripheral Accessories

    GD350A series high-performance multifunction VFD Appendix D Optional peripheral accessories D.1 What this chapter contains This chapter describes how to select optional accessories of the VFD. D.2 Wiring of peripheral accessories The following figure shows the external wiring of the VFD. Upper PC LCD keypad software...

  • Page 362: Power Supply

    GD350A series high-performance multifunction VFD Image Name Description Cable Accessory for signal transmission Device for electric shock prevention and protection against short-to-ground that may cause current leakage and fire. Select residual-current circuit breakers (RCCBs) Breaker that are applicable to VFDs and can restrict high-order harmonics, and of which the rated sensitive current for one VFD is larger than 30 mA.

  • Page 363: Cables

    GD350A series high-performance multifunction VFD  Ensure that the voltage class of the VFD is consistent with that of the grid. D.4 Cables D.4.1 Power cables The sizes of the input power cables and motor cables must meet the local regulation. •...
  • Page 364 GD350A series high-performance multifunction VFD Shield layer Insulating layer Cross-section of the cable D.4.2 Control cables All analog control cables and cables used for frequency input must be shielded cables. Analog signal cables need to be double-shielded twisted-pair cables (as shown in figure a). Use one separate shielded twisted pair for each signal.
  • Page 365 GD350A series high-performance multifunction VFD D.4.3 Recommended cable sizes Table D.1 AC 3PH 380V(-15%)–440V(+10%) Recommended cable size (mm²) Screw Tightening VFD model R, S, T PB, (+) Terminal P1 (+) torque U, V, W screw (Nm) GD350A-1R5G/2R2P-4 1.0/1.0 1.0/1.0 1.0/1.0 1.0/1.0 1.2–1.5 GD350A-2R2G/003P-4...
  • Page 366 GD350A series high-performance multifunction VFD Recommended cable size (mm²) Screw Tightening VFD model R, S, T PB, (+) Terminal P1 (+) torque U, V, W screw (Nm) 2×150 2×150/ GD350A-450G/500P-4 3×185 3×185 3×185 31–40 2×150 GD350-500G-4 3×185 2×150 3×185 3×185 31–40 Note: Cables of the sizes recommended for the main circuit can be used in scenarios where the ambient...

  • Page 367: Breaker And Electromagnetic Contactor

    GD350A series high-performance multifunction VFD U, V, and W output terminals of the VFD. 2. Use a megameter of 500 V DC to measure the insulation resistance between each phase conductor and the protection grounding conductor. For details about the insulation resistance of the motor, see the description provided by the manufacturer.

  • Page 368: Reactors

    GD350A series high-performance multifunction VFD Breaker rated Contactor rated VFD model Quick fuse (A) current (A) current (A) GD350A-132G/160P-4 400/500 400/500 330/400 GD350A-160G/185P-4 500/500 500/600 400/400 GD350A-185G/200P-4 500/630 600/600 400/500 GD350A-200G/220P-4 630/630 600/700 500/500 GD350A-220G/250P-4 630/700 700/800 500/630 GD350A-250G/280P-4 700/800 800/1000 630/630 GD350A-280G/315P-4...
  • Page 369 GD350A series high-performance multifunction VFD Input reactor DC reactor Output reactor Table D.3 Reactors for AC 3PH 380V(-15%)–440V(+10%) VFD model Input reactor DC reactor Output reactor GD350A-1R5G/2R2P-4 ACL2-1R5-4 OCL2-1R5-4 GD350A-2R2G/003P-4 ACL2-2R2-4 OCL2-2R2-4 GD350A-004G/5R5P-4 ACL2-004-4 OCL2-004-4 GD350A-5R5G/7R5P-4 ACL2-5R5-4 OCL2-5R5-4 GD350A-7R5G/011P-4 ACL2-7R5-4 OCL2-7R5-4 GD350A-011G/015P-4 ACL2-011-4...

  • Page 370: Filters

    GD350A series high-performance multifunction VFD VFD model Input reactor DC reactor Output reactor GD350A-355G/400P-4 Standard DCL2-400-4 OCL2-350-4 GD350A-400G/450P-4 Standard DCL2-400-4 OCL2-400-4 GD350A-450G/500P-4 Standard DCL2-500-4 OCL2-500-4 GD350-500G-4 Standard DCL2-500-4 OCL2-500-4 Note: The rated input voltage drop of input reactors is 2%±15%. ...
  • Page 371 GD350A series high-performance multifunction VFD Note: Do not connect C3 filters in IT power systems. Interference filters on the input side can reduce the interference of VFDs (when used) on the surrounding devices. Noise filters on the output side can decrease the radio noise caused by the cables between VFDs and motors and the leakage current of conducting wires.
  • Page 372 GD350A series high-performance multifunction VFD Field identifier Field description Filter application environment A: Environment Category I (IEC61800-3) category C1 (EN 61800-3) B: Environment Category I (IEC61800-3) category C2 (EN 61800-3) C: Environment Category II (IEC61800-3) category C3 (EN 61800-3) D.7.2 Filter model selection Table D.4 AC 3PH 380V(-15%)–440V(+10%) VFD model Input filter...

  • Page 373: Braking System

    GD350A series high-performance multifunction VFD Note: The input EMI meets the C2 requirements after an input filter is configured.  The preceding table describes external accessories. You need to specify the ones you choose  when purchasing accessories. D.8 Braking system D.8.1 Brake component selection When the VFD driving a high-inertia load decelerates or needs to decelerate abruptly, the motor runs in the power generation state and transmits the load-carrying energy to the DC circuit of the VFD,...
  • Page 374 GD350A series high-performance multifunction VFD Table D.5 Braking units for AC 3PH 380V(-15%)–440V(+10%) Dissipated power of braking Resistance Min. resistor (kW) applicable allowable Braking VFD model for 100% brake unit model 50% brake 80% brake brake brake resistance usage usage torque (Ω) (Ω) usage...
  • Page 375 GD350A series high-performance multifunction VFD The braking resistor may increase the brake torque of the VFD. The preceding table describes  the resistance and power for 100% brake torque, 10% brake usage, 50% brake usage, and 80% brake usage. You can select the braking system based on the actual operation conditions. When using an external braking unit, set the brake voltage class of the braking unit properly by ...
  • Page 376 GD350A series high-performance multifunction VFD Installation of braking units:  (+) and (-) are the terminals for connecting braking units.  The connection cables between the (+) and (-) terminals of the VFD and those of a braking unit must be shorter than 5 m, and the connection cables between the BR1 and BR2 terminals of a braking unit and the terminals of a braking resistor must be shorter than 10 m.

  • Page 377: Appendix E Sto Function Description

    GD350A series high-performance multifunction VFD Appendix E STO function description Reference standards: IEC 61508-1, IEC 61508-2, IEC 61508-3, IEC 61508-4, IEC 62061, ISO 13849- 1, IEC 61800-5-2。 You can enable the safe torque off (STO) function to prevent unexpected startups when the main power supply of the drive is not switched off.

  • Page 378: Sto Function Installation Checklist

    GD350A series high-performance multifunction VFD STO mode STO trigger and indication delay 1, 2 Trigger delay < 10 ms STO fault: STL1 Indication delay < 280 ms Trigger delay < 10 ms STO fault: STL2 Indication delay < 280 ms Trigger delay <...

  • Page 379: Appendix F Further Information

    Appendix F Further information F.1 Product and service queries Should you have any queries about the product, contact the local esco office. Provide the model and serial number of the product you query about.. F.2 Feedback on INVT VFD manuals Your comments on our manuals are welcome.
  • Page 380 Subject to technical changes. Stand 03/2022 esco antriebstechnik gmbh · Biberweg 10 · D-53842 Troisdorf Tel. +49 (0) 2241 4807-0 · Fax. +49 (0) 2241 4807-10 E-Mail: info@esco-antriebstechnik.com · Internet: www.esco-antriebstechnik.de...

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