Page 2 Ecowatt Drive K320 series Change history ® Change description Version Release date First release V1.0 June 2021...
Page 3 Ecowatt Drive K320 series Preface ® Preface The Ecowatt Drive K320 series is a high performance variable-frequency drive (VFD) that specific designed to be applied in Fan application which integrates the latest Safety and Energy-saving functions for the demand control ventilation system. It can drive both synchronous motors and asynchronous motors.
Page 4: Table Of Contents
Ecowatt Drive K320 series Contents ® 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 1.4.1 Delivery and installation ......................2 1.4.2 Commissioning and running ....................
Page 5 Ecowatt Drive K320 series Contents ® 4.3.2 Main circuit terminal diagram ..................... 22 4.3.3 Wiring procedure of the main circuit terminals ............. 24 4.4 Control circuit standard wiring......................25 4.4.1 Basic control circuit wiring diagram .................. 25 4.4.2 Input/output signal connection diagram ................27 4.5 Wiring protection ..........................
Page 6 Ecowatt Drive K320 series Contents ® 5.5.11 Digital input ..........................94 5.5.12 Digital output ........................... 103 5.5.13 Simple PLC ..........................108 5.5.14 Multi-step speed running ..................... 110 5.5.15 PID control ..........................112 5.5.16 Running at wobbling frequency ..................118 5.5.17 Local encoder input ........................ 119 5.5.18 Commissioning procedures for closed-loop control, position control and spindle positioning ............................
Page 7 Ecowatt Drive K320 series Contents ® 8.4 Capacitor ..............................274 8.4.1 Capacitor reforming ........................ 274 8.4.2 Electrolytic capacitor replacement ..................275 8.5 Power cable ............................275 9 Communication ............................. 276 9.1 What this chapter contains ......................276 9.2 Modbus protocol introduction ......................276 9.3 Application ............................
Page 8 Ecowatt Drive K320 series Contents ® A.7.6 Simplified incremental PG card——EC-PG507-12 ............333 Appendix B Technical data ........................334 B.1 What this chapter contains......................334 B.2 Derated application ..........................334 B.2.1 Capacity ............................334 B.2.2 Derating ............................334 B.3 Grid specifications ..........................335 B.4 Motor connection data ........................
Page 9 E.2 STO channel delay description ...................... 360 STO function installation checklist ..................... 360 Appendix F Further information ......................361 F.1 Product and service queries ......................361 F.2 Feedback on Kruger VFD manuals ....................361 F.3 Documents on the Internet ......................361 -vii-...
Page 10: Safety Precautions
Ecowatt Drive K320 series Safety precautions ® 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 11: Safety Guidelines
Ecowatt Drive K320 series Safety precautions ® Symbols Name Instruction Abbreviation Read Read the operation manual before manual operating on the equipment Note Note Actions taken to ensure proper operation Note 1.4 Safety guidelines Only trained and qualified electricians are allowed to carry out related ...
Page 12: Commissioning And Running
When the installation site altitude exceeds 1000m, derate by 1% for every increase of 100m;  when the installation site altitude exceeds 3000m, consult local Kruger dealer or office. Use the VFD in proper environment. (For details, see "Installation environment".) ...
Page 13: Maintenance And Component Replacement
Ecowatt Drive K320 series Safety precautions ® Note: Do not switch on or switch off input power sources of the VFD frequently.  If the VFD has been stored for a long time without being used, set the capacitance (see ...
Page 14: Quick Startup
Whether the accessories (including the manual and keypad) inside the packing box are  complete. If any problems are found, contact the local dealer or Kruger office. 2.3 Checking before applying Check the following before applying the VFD. Check the load type to verify that there is no overload of the VFD during work and ...
Page 15: Installation Confirmation
Ecowatt Drive K320 series Quick startup ® Check whether the ambient temperature of the VFD in actual use is lower than -10°C. If  yes, use heating facilities. When the altitude exceeds 1000m, derate by 1% for every increase of 100m. When the ...
Page 16: Basic Commissioning
Ecowatt Drive K320 series Quick startup ® 2.6 Basic commissioning Complete the basic commissioning as follows before the actual use of the VFD: According to the actual motor parameters, select the motor type, set motor parameters,  and select the VFD control mode. Autotune.
Page 17: Product Overview
Ecowatt Drive K320 series Product overview ® 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 18: Product Specifications
Ecowatt Drive K320 series Product overview ® （+）（-） Figure 3-3 Main circuit diagram for 055P–132P （+） DC reactor （-） Figure 3-4 Main circuit diagram for 160P and higher models Note: 160P and higher models can be connected to external DC reactors. Before connection, take ...
Page 19 Ecowatt Drive K320 series Product overview ® Function description Specification Output voltage (V) 0–Input voltage Output current (A) See "Product ratings". Power output Output power (kW) See "Product ratings". Output frequency 0–400Hz (Hz) Space voltage vector control, sensorless vector Control mode control (SVC), and vector control with sensor feedback (FVC) Asynchronous motor (AM) and permanent magnetic...
Page 20 Ecowatt Drive K320 series Product overview ® Function description Specification Terminal analog No more than 20mV input resolution Terminal digital No more than 2ms input resolution Analog input 2 inputs; AI1: 0–10V/0–20mA; AI2: -10–10V Analog output 1 input; AO1: 0–10V/0–20mA Four regular inputs;...
Page 21: Product Nameplate
Output: AC 3PH 0-Uinput 7A 0-400Hz S/N: Made in China Kruger Ventilation Industries Asia Co., Ltd. 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.
Page 22: Product Ratings
Ecowatt Drive K320 series Product overview ® 3.6 Product ratings Variable torque VFD model Output power (kW) Input current (A) Output current (A) K320-2R2P-4 K320-003P-4 K320-5R5P-4 19.5 12.5 K320-7R5P-4 K320-011P-4 K320-015P-4 K320-018P-4 18.5 K320-022P-4 K320-030P-4 K320-037P-4 K320-045P-4 K320-055P-4 K320-075P-4 K320-090P4 K320-110P-4 K320-132P-4 K320-160P-4...
Page 23: Structure Diagram
Ecowatt Drive K320 series Product overview ® 3.7 Structure diagram The VFD structure is shown in the following figure (using the 037P VFD model as an example): Figure 3-7 Structure diagram Item Description Upper cover Used to protect internal components. Keypad For details, see "Operating the VFD by keypad".
Page 24: Installation Guidelines
Installation must be designed and done according to applicable local laws  and regulations. Kruger does not assume any liability whatsoever for any installation which breaches local laws and regulations. If recommendations given by Kruger are not followed, the VFD may experience problems that the warranty does not cover.
Page 25: Installation Direction
Ecowatt Drive K320 series Installation guidelines ® Environment Condition The relative humidity (RH) of the air is less than 90%;  Condensation is not allowed;  Humidity The max RH cannot exceed 60% in the environment where there are  corrosive gases.
Page 26: Installation Mode
Ecowatt Drive K320 series Installation guidelines ® 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 355P and lower models ...
Page 27: Single-Unit Installation
Ecowatt Drive K320 series Installation guidelines ® 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 ...
Page 28: Vertical Installation
Ecowatt Drive K320 series Installation guidelines ® 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 mutual interference, and the heat dissipation effect will be degraded. -19-...
Page 29: Tilted Installation
Ecowatt Drive K320 series Installation guidelines ® 4.2.7 Tilted installation 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. -20-...
Page 30: Main Circuit Standard Wiring
Ecowatt Drive K320 series Installation guidelines ® 4.3 Main circuit standard wiring 4.3.1 Main circuit wiring diagram Braking resistor （+）（-） Output reactor Input 3PH power reactor 045P and lower models Output 380V(-15%)-440V(+10%) filter Input 50/60Hz filter Fuse Braking unit Braking resistor （+）...
Page 31: Main Circuit Terminal Diagram
Ecowatt Drive K320 series Installation guidelines ® 4.3.2 Main circuit terminal diagram Figure 4-8 Main circuit terminal diagram for 030P and lower models Figure 4-9 Main circuit terminal diagram for 037P–045P models Figure 4-10 Main circuit terminal diagram for 055P–0132P (optional built-in braking unit means starting PB) Figure 4-11 Main circuit terminal diagram for 160P–220P models -22-...
Page 32 Ecowatt Drive K320 series Installation guidelines ® Figure 4-12 Main circuit terminal diagram for 250P–355P models Figure 4-13 Main circuit terminal diagram for 400P–500P models -23-...
Page 33: Wiring Procedure Of The Main Circuit Terminals
The PB is available for the 055P–132P models only when built-in braking units have been  selected for the 055P–75P models. Kruger series VFDs cannot share the DC bus with CH series VFDs.  When sharing the DC bus, the VFDs must be the same in power and must be ...
Page 34: Control Circuit Standard Wiring
Ecowatt Drive K320 series Installation guidelines ® 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. Connect optional parts such as the braking resistor that carries cables to designated positions.
Page 35 Ecowatt Drive K320 series Installation guidelines ® Figure 4-15 Control circuit wiring diagram Terminal Description name +10V Locally provided +10.5V power supply Input range: AI1 voltage/current can choose 0–10V / 0–20mA; AI2: -10V –  +10V; Input impedance: 20kΩ during voltage input; 250Ω during current input; ...
Page 36: Input/Output Signal Connection Diagram
Ecowatt Drive K320 series Installation guidelines ® Terminal Description name Digital input 1 Internal impedance: 3.3kΩ  Accept 12–30V voltage input Digital input 2  Bi-directional input terminal, supporting NPN/PNP Digital input 3  connection modes Max. input frequency: 1kHz ...
Page 37: Wiring Protection
Ecowatt Drive K320 series Installation guidelines ® Note: The USB port can be used to upgrade the software, and the keypad port can be used to connect an external keypad. The external keypad cannot be used when the keypad of the VFD is used.
Page 38: Protecting The Motor And Motor Cable In Short Circuit
Ecowatt Drive K320 series Installation guidelines ® 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 39: Basic Operation Guidelines
Ecowatt Drive K320 series Basic operation guidelines ® 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 40 Ecowatt Drive K320 series Basic operation guidelines ® Item Description 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 different state under different functions, QUICK/JOG see definition of the QUICK/JOG key for details.
Page 41 Ecowatt Drive K320 series Basic operation guidelines ® Item Description In running state, pressing this key can stop Stop/ running or autotuning; this key is limited Reset key by P07.04. In fault alarm state, all the control modes can be reset by this key. Up: Its function varies with the interface (Example: shifting up the displayed/selected item and changing...
Page 42 Ecowatt Drive K320 series Basic operation guidelines ® 16:02:35 Forward Local Ready 01: K320 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 43: Keypad Display
Ecowatt Drive K320 series Basic operation guidelines ® 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 Footer F menus of function with interfaces, and the contents displayed in this area keys 4, 5 and 6 are also different.
Page 44: Displaying Running-State Parameters
Ecowatt Drive K320 series Basic operation guidelines ® 5.3.2 Displaying running-state parameters After receiving valid running command, the VFD will enter running state, and the keypad displays 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.
Page 45: Operating The Vfd By Keypad
Ecowatt Drive K320 series Basic operation guidelines ® 16:02:35 Forward Local 01: K320 Fault 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 46 Ecowatt Drive K320 series Basic operation guidelines ® Regarding the system menu, the operation relation between enter and exit is shown in the following figure. 16:02:35 Forward Local Ready 16:02:35 Forward Local Ready 16:02:35 Forward Local Ready 01: K320 01: K320 01: K320 Common parameter setup Set frequency...
Page 47 Ecowatt Drive K320 series Basic operation guidelines ® The keypad menu setup is shown in the following. 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...
Page 48 Ecowatt Drive K320 series Basic operation guidelines ® Level 1 Level 2 Level 3 Level 4 P05: Input terminal group P05.xx Terminal P06: Output terminal group P06.xx function P98: AIAO calibration group setup P98.xx function group P15: Communication expansion card 1 function P15.xx group P16: Communication...
Page 49 Ecowatt Drive K320 series Basic operation guidelines ® Level 1 Level 2 Level 3 Level 4 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? history Pxx.xx has modified parameter 1...
Page 50: List Edit
Ecowatt Drive K320 series Basic operation guidelines ® 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 51: Add Parameters To The Parameter List Displayed In Stop/Running State
Ecowatt Drive K320 series Basic operation guidelines ® 5.4.3 Add parameters to the parameter list displayed in stop/running state In the fourth-level menu of "State monitoring", the parameters in the list can be added to the "parameter displayed in stop state" list or "parameter displayed in running state" list as shown below.
Page 52: Parameter Selection Edit Interface
Ecowatt Drive K320 series Basic operation guidelines ® 16:02:35 16:02:35 Forward Local Ready 01: K320 Forward Local Ready 01: K320 P01.00：Running mode of start P01.01：Starting frequency of direct start Sure to add to common parameter P01.02：Hold-up time of starting frequency setup? P01.03：Brake current before start P01.04：Brake time before start...
Page 53: Parameter Setup Edit Interface
Ecowatt Drive K320 series Basic operation guidelines ® 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 54: Motor Parameter Autotuning
Ecowatt Drive K320 series Basic operation guidelines ® 5.4.8 Motor parameter autotuning In "Motor parameter autotuning" menu, press key, key or key to enter motor parameter autotuning selection interface, however, before entering motor parameter autotuning interface, users must set the motor nameplate parameters correctly. After entering the interface, select motor autotuning type to carry out motor parameter autotuning.
Page 55: System Setup
Ecowatt Drive K320 series Basic operation guidelines ® 5.4.10 System setup In "System setup" menu, press key, key or key to enter system setup interface to set keypad language, time/date, backlight brightness, backlight time and restore parameters. Note: Clock battery is not included, and the keypad time/date needs to be reset after power off. If time-keeping after power off is needed, users should purchase the clock batteries separately.
Page 56 Ecowatt Drive K320 series Basic operation guidelines ® Level 1 Level 2 Level 3 Level 4 P02.01 Rated 4: High-speed power of AM pulse HDIA P02.02 Rated 5: Simple PLC frequency of program AM 1 P02.03 Rated 6: Multi-step speed of AM speed running P02.04 Rated 7: PID control...
Page 57 Ecowatt Drive K320 series Basic operation guidelines ® Level 1 Level 2 Level 3 Level 4 Motor parameter 0: Keypad autotuning P00.01 interface Running 1: Terminal command channel Communication command 0: Modbus/ Modbus TCP communication PROFIBUS/ CANopen /Devicenet communication P00.02 2: Ethernet Communi- Communication...
Page 58: Basic Operations
Ecowatt Drive K320 series Basic operation guidelines ® Level 1 Level 2 Level 3 Level 4 0: Decelerate P01.08 to 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 59 Ecowatt Drive K320 series Basic operation guidelines ® Start Power up after confirming the wiring is correct Restore to default value (P00.18=1) Asynchronous motor Synchronous motor Set the motor parameters of Set the motor parameters of P02.01–P02.05 as per the P02.15–P02.19 as per the motor nameplate motor nameplate...
Page 60 Ecowatt Drive K320 series Basic operation guidelines ® Note: If fault occurred, rule out the fault cause according to "Fault handling". The running command channel can be set by terminal commands besides P00.01 and P00.02. Multi-function Multi-function Multi-function Current running terminal function (36) terminal function (37) terminal function (38)
Page 61 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code 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 62: Vector Control
Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code Model Rated current of 0.8–6000.0A P02.19 SM 1 depended Function 36: Switch the running command channel to selection of keypad multifunction P05.01–P05. 37: Switch the running command channel to digital input terminal terminals...
Page 63 Ecowatt Drive K320 series Basic operation guidelines ® R S T Rectifier bridge φ Calculate i exciting current Park IGBT conversion pulse bridge Calculate i torque current φ Position observation Voltage detection Speed identific ation Flux linkage observation Park Clark Current conversio conversion...
Page 64 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code Type of 0: Asynchronous motor (AM) P02.00 motor 1 1: Synchronous motor (SM) Speed-loop P03.00 proportional 0–200.0 20.0 gain 1 Speed-loop P03.01 0.200s integral time 0.000–10.000s Low-point P03.02 5.00Hz frequency for...
Page 65 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code Current-loop P03.10 integral 0–65535 1000 coefficient I 1: Keypad (P03.12) 2: AI1 3: AI2 4: AI3 5: Pulse frequency HDIA 6: Multi-step torque Torque 7: Modbus communication P03.11 setting 8: PROFIBUS/CANopen/DeviceNet communication...
Page 66 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code Setting source of reverse rotation 0: Keypad (set by P03.17) P03.15 upper-limit 1–11: Same as those of P03.14 frequency in torque control Forward rotation upper-limit frequency set P03.16 50.00Hz through...
Page 67 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code Setting source of 0: Keypad (set by P03.21) P03.19 braking 1–10: Same as those for P03.18 torque upper limit Electromotiv e torque P03.20 180.0% upper limit set through keypad 0.0–300.0% (of the motor rated current) Braking...
Page 68 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code 0–0x1111 Ones place: Torque command selection 0: Torque reference 1: Torque current reference Tens place: Reserved 0: Reserved Control 1: Reserved Hundreds place: indicates whether to enable P03.35 optimization 0x0000...
Page 69: Space Voltage Vector Control Mode
Ecowatt Drive K320 series Basic operation guidelines ® 5.5.4 Space voltage vector control mode The VFD also provides the space voltage control function. The space voltage control mode can be used in cases where mediocre control precision is enough and in cases where the VFD needs to drive multiple motors.
Page 70 Ecowatt Drive K320 series Basic operation guidelines ® The VFD provides dedicated function codes for the space voltage control mode. You can improve the space voltage control performance by means of setting. Torque boost The torque boost function can effectively compensate for the low-speed torque performance in space voltage control.
Page 71 Ecowatt Drive K320 series Basic operation guidelines ® Oscillation control Motor oscillation often occurs in space voltage vector control in large-power driving applications. To solve this problem, the VFD provides two oscillation factor function codes. You can set the function codes based on the oscillation occurrence frequency. Note: A greater value indicates better control effect.
Page 72 Ecowatt Drive K320 series Basic operation guidelines ® -63-...
Page 73 Ecowatt Drive K320 series Basic operation guidelines ® 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 in combination manner. Note: This type of V/F curve separation can be applied in various variable-frequency power sources.
Page 74 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code Torque boost of 0.0%: (automatic); 0.1%–10.0% P04.01 0.0% motor 1 Torque boost 0.0%–50.0% (of the rated frequency of motor 1) P04.02 20.0% cut-off of motor 1 V/F frequency 0.00Hz–P04.05 P04.03 0.00Hz...
Page 75 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code V/F voltage point P04.17 0.0%–110.0% 0.0% 1 of motor 2 V/F frequency P04.18 P04.16– P04.20 0.00Hz point 2 of motor 2 V/F voltage point P04.19 0.0%–110.0% 0.0% 2 of motor 2 V/F frequency P04.20...
Page 76 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code 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. output P04.31 P04.32–100.0% (of the motor rated voltage) 100.0% voltage Min.
Page 77 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code When the SM V/F control mode is enabled, Reactive current the function code is used to set the integral closed-loop P04.38 coefficient of reactive current closed-loop integral time in control.
Page 78: Torque Control
Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code When IF control is adopted for AM 2, the function code is used to set the output current. Current setting in The value is a percentage in relative to the P04.46 120.0% IF mode for AM 2...
Page 79 Ecowatt Drive K320 series Basic operation guidelines ® -70-...
Page 80 Ecowatt Drive K320 series Basic operation guidelines ® 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 3: Closed-loop vector control mode P00.00 mode Note: To select 0, 1, or 3 as the control mode,...
Page 81 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code Setting source of reverse rotation 0: Keypad (P03.17) upper-limit P03.15 1–11: Same as those of P03.14 frequency in torque control Forward rotation upper-limit P03.16 frequency set 0.00Hz–P00.03 (Max. output frequency) 50.00 Hz through keypad in torque control...
Page 82: Motor Parameters
Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code P17.09 -250.0–250.0% Output torque 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 ...
Page 83 Ecowatt Drive K320 series Basic operation guidelines ® The control performance of the VFD is based on accurate motor models. Therefore, you need to carry out motor parameter autotuning before running a motor for the first time (taking motor 1 as an example).
Page 84 Ecowatt Drive K320 series Basic operation guidelines ® If static autotuning is selected for motor autotuning, there is no need to disconnect the  motor from the load, but the control performance may be impacted as only a part of the motor parameters have been autotuned.
Page 85 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code Model P02.03 Rated speed of AM 1 1–60000rpm depended Rated voltage of AM Model P02.04 0–1200V depended Rated current of AM Model P02.05 0.8–6000.0A depended Stator resistance of Model P02.06 0.001–65.535Ω...
Page 86 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code 0x00–0x14 Ones place: Switchover channel 0: Terminal 1: Modbus/Modbus TCP communication 2: Profibus/CANopen/DeviceNet communication Switching between P08.31 3: Ethernet communication motor 1 and motor 2 EtherCat/Profinet/EtherNetIP communication Tens place: indicates whether to enable switchover during running 0: Disable...
Page 87: Start/Stop Control
Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code Rated frequency of P12.16 0.01Hz–P00.03 (Max. output frequency) 50.00Hz SM 2 Number of pole pairs P12.17 1–50 of SM 2 Rated voltage of SM Model P12.18 0–1200V depended Rated current of SM Model...
Page 88 Ecowatt Drive K320 series Basic operation guidelines ® -79-...
Page 89 Ecowatt Drive K320 series Basic operation guidelines ® 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 >P01.23 power-cut>P01.22 P01.21...
Page 90 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code 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,...
Page 91 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code Wake-up-from-sleep 0.0–3600.0s (valid when P01.19=2) P01.20 0.0s delay Power-off restart 0: Disable P01.21 selection 1: Enable Wait time for power-on P01.22 0.0–3600.0s (valid when P01.21=1) 1.0s restart Start delay 0.0–60.0s P01.23...
Page 92: Frequency Setting
Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code 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 P08.03 DEC time 3 0.0–3600.0s depended Model P08.04...
Page 93 Ecowatt Drive K320 series Basic operation guidelines ® 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 94 Ecowatt Drive K320 series Basic operation guidelines ® Multifunction terminal Multifunction terminal Multifunction terminal Present reference function 13 function 14 function 15 channel Channel A switched to Combination setting Combination setting P00.09 channel B switched to channel A switched to channel B Max(A,B) Min(A,B) Note: "/"...
Page 95 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code Setting channel of A 0: Keypad P00.06 frequency command 1: AI1 2: AI2 3: AI3 4: High-speed pulse HDIA 5: Simple PLC program 6: Multi-step speed running 7: PID control 8: Modbus/Modbus TCP communication Setting channel of B...
Page 96 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code P08.43 Reserved 0x000–0x221 Ones place: Frequency setting selection 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...
Page 97: Analog Input
Ecowatt Drive K320 series Basic operation guidelines ® 5.5.9 Analog input The VFD provides two analog input terminals, which are AI1 supporting 0–10V/0–20mA, (whether the input is voltage or current can be set by P05.50), and AI2 supporting -10–10V, and two high-speed pulse input terminals.
Page 98 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code P05.26 AI1 upper limit P05.24–10.00V 10.00V Corresponding setting of 100.0% P05.27 -300.0%–300.0% AI1 upper limit P05.28 AI1 input filter time 0.000s–10.000s 0.100s P05.29 AI2 lower limit -10.00V–P05.31 -10.00V Corresponding setting of P05.30...
Page 99: Analog Output
Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code HDIB lower limit 0.000kHz P05.45 0.000 kHz – P05.47 frequency Corresponding setting of 0.0% P05.46 HDIB lower limit -300.0%–300.0% frequency HDIB upper limit 50.000kHz P05.47 P05.45 –50.000kHz frequency Corresponding setting of 100.0%...
Page 100 Ecowatt Drive K320 series Basic operation guidelines ® Terminal output is described as follows: Setting Function Description Running frequency 0–Max. output frequency Set frequency 0–Max. output frequency Ramp reference frequency 0–Max. output frequency 0–Synchronous speed corresponding to Running speed max. output frequency Output current (relative to VFD) 0–Twice the VFD rated current Output current (relative to motor)
Page 101 Ecowatt Drive K320 series Basic operation guidelines ® Setting Function Description 0–Three times the motor rated current. Torque current (bipolar) A negative value corresponds to 0.0% by default. 0–Three times the motor rated current. Exciting current A negative value corresponds to 0.0% by default.
Page 102 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code 4: Output current (0–Twice the VFD rated current) 5: Output current (0–Twice the motor rated current) 6: Output voltage (0–1.5 times the VFD rated voltage) 7: Output power (0–Twice the motor rated power) 8: Set torque (0–Twice the motor rated current)
Page 103: Digital Input
Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code output frequency) 25: Ramp reference frequency (bipolar, 0–Max. output frequency) 26: Rotational speed (bipolar, 0–Speed corresponding max. output frequency) Value through EtherCat/Profinet/EtherNetIP (0–1000) 28: C_AO1 (Set P27.00 to 1. 0–1000) 29: C_AO2 (Set P27.00 to 1.
Page 104 Ecowatt Drive K320 series Basic operation guidelines ® P05.08 (input terminal polarity) P05.09 (digital filter time) Digital function selection P05.12 P05.13 P05.01 T delay T delay 1 -1 (Default value is 1) P05.14 P05.15 T delay T delay P05.02 1 -1 (Default value is 4) P05.16 P05.17...
Page 105 Ecowatt Drive K320 series Basic operation guidelines ® Setting Function Description Used to change the frequency increase/decrease Increase frequency command when the frequency is given by external setting (UP) terminals. Decrease frequency setting (DOWN) UP terminal DOWN terminal UP/DOWN clearing terminal Clear the frequency increase/decrease setting The terminal used to clear frequency increase/decrease...
Page 106 Ecowatt Drive K320 series Basic operation guidelines ® Setting Function Description ACC/DEC time selection 1 The two terminals are used to select four groups of acceleration/decoration time. (T indicates Terminal in the following table.) ACC/DEC time Parameter ACC/DEC time 1 P00.11/P00.12 ACC/DEC time selection 2 ACC/DEC time 2...
Page 107 Ecowatt Drive K320 series Basic operation guidelines ® Setting Function Description Switch between motor 1 When the function is valid, the switchover between the and motor 2 two motors can be controlled. When the function is enabled, the running command Switch the running channel is switched to keypad.
Page 108 Ecowatt Drive K320 series Basic operation guidelines ® Setting Function Description Spindle scale division Spindle scale division selection 2 made through selection 2 terminals Spindle scale division Spindle scale division selection 3 made through selection 3 terminals Terminal for switching Used to switch between position control and speed between position control control...
Page 109 Ecowatt Drive K320 series Basic operation guidelines ® Setting Function Description When the terminal is valid, the proportional numerator Electronic gear selection is switched to the P21.30 numerator of the 2nd command ratio. In stopped state, if the function is valid, the master is Switch to mater used.
Page 110 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code setting and A setting 15: Switch-over between combination setting and setup B 16: Multi-step speed terminal 1 17: Multi-step speed terminal 2 18: Multi-step speed terminal 3 19: Multi-step speed terminal 4 20: Multi-step speed pause 21: ACC/DEC time selection 1...
Page 111 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code 66: Zero out encoder counting 67: Pulse increase 68: Enable pulse superimposition 69: Pulse decrease 70: Electronic gear selection 71: Switch to the master 72: Switch to the slave 73: Trigger fire mode control 74–79: Reserved Polarity of input...
Page 112: Digital Output
Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code S4 terminal switch-off P05.19 0.000–50.000s 0.000s delay HDIA terminal P05.20 0.000–50.000s 0.000s switch-on delay HDIA terminal P05.21 0.000–50.000s 0.000s switch-off delay HDIB terminal P05.22 0.000–50.000s 0.000s switch-on delay HDIB terminal P05.23 0.000–50.000s...
Page 113 Ecowatt Drive K320 series Basic operation guidelines ® Setting Function Description Output ON signal when there is frequency In reverse running output during reverse running Output ON signal when there is frequency In jogging output during jogging VFD fault Output ON signal when VFD fault occurred Frequency level detection FDT1 Refer to P08.32 and P08.33.
Page 114 Ecowatt Drive K320 series Basic operation guidelines ® Setting Function Description Output corresponding signal based on the set Virtual terminal output of value of Ethernet; output ON signal when it is Ethernet communication set to 1, output OFF signal when it is set to 0. Output is valid when the bus voltage is above DC bus voltage established the undervoltage threshold of the inverter...
Page 115 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code P06.01 Y1 output selection 0: Invalid 1: In running P06.02 HDO output selection 2: In forward running P06.03 RO1 output selection 3: In reverse running 4: In jogging 5: VFD fault 6: Frequency level detection FDT1 7: Frequency level detection FDT2...
Page 116 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code 34: Virtual terminal output of EtherCat/Profinet/EtherNetIP communication 35: Reserved 36: Speed/position control switch-over completed 37: Reach any frequency 38–40: Reserved 41: C_Y1 from PLC (You need to set P27.00 to 1.) 42: C_Y2 from PLC (You need to set P27.00 to 1.)
Page 117: Simple Plc
Ecowatt Drive K320 series Basic operation guidelines ® 5.5.13 Simple PLC Simple PLC is a multi-step speed generator, and the VFD can change the running frequency and direction automatically based on the running time to fulfill process requirements. Previously, such function was realized with external PLC, while now, the VFD itself can achieve this function.
Page 118 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code P10.04 Multi-step speed 1 -100.0–100.0% 0.0% P10.05 Running time of step 1 0.0–6553.5s (min) 0.0s P10.06 Multi-step speed 2 -100.0–100.0% 0.0% P10.07 Running time of step 2 0.0–6553.5s (min) 0.0s P10.08...
Page 119: Multi-Step Speed Running
Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code P17.00 Set frequency 0.00Hz–P00.03 (Max. output frequency) 0.00Hz Simple PLC and present Displays the present stage of the simple stage number of P17.27 PLC function. multi-step speed 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.
Page 120 Ecowatt Drive K320 series Basic operation guidelines ® Function code Name Description Default P10.02 0.0% Multi-step speed 0 -100.0–100.0% P10.03 0.0s Running time of step 0 0.0–6553.5s (min) P10.04 0.0% Multi-step speed 1 -100.0–100.0% P10.05 0.0s Running time of step 1 0.0–6553.5s (min) P10.06 0.0%...
Page 121: Pid Control
Ecowatt Drive K320 series Basic operation guidelines ® Function code Name Description Default P10.33 0.0s Running time of step 15 0.0–6553.5s (min) ACC/DEC time of steps 0–7 P10.34 0x0000–0XFFFF 0000 of simple PLC ACC/DEC time of steps P10.35 0x0000–0XFFFF 0000 8–15 of simple PLC Simple PLC and present Displays the present stage of...
Page 122 Ecowatt Drive K320 series Basic operation guidelines ® feedback signal and reference. If the static difference occurs in the direction of reference change (such as reference increase, where the feedback is always less than the reference after system stabilizes), continue increasing the proportional gain; otherwise, decrease the proportional gain.
Page 123 Ecowatt Drive K320 series Basic operation guidelines ® c. Determining derivative time Td The derivative time Td is generally set to 0. If you need to set Td to another value, set in the same way with P and Ti, namely set Td to 30% of the value when there is no oscillation.
Page 124 Ecowatt Drive K320 series Basic operation guidelines ® Response Before adjustment After adjustment Time t Control short-term vibration: If the vibration cycle is short is almost the same with the set value of derivative time (Td), it indicates derivative action is too strong, shorten the derivative time (Td) to control vibration.
Page 125 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code PID reference P09.01 0.0% preset through -100.0%–100.0% keypad 0: AI1 1: AI2 2: AI3 3: High-speed pulse HDIA 4: Modbus/Modbus TCP communication 5: PROFIBUS/CANopen/DevicneNET PID feedback P09.02 communication source 6: Ethernet communication...
Page 126 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code 0x0000–0x1111 Ones place: 0: Continue integral control after the frequency reaches upper/lower limit 1: Stop integral control after the frequency reaches upper/lower limit Tens place: 0: The same with the main reference direction 1: Contrary to the main reference direction PID control Hundreds place:...
Page 127: Running At Wobbling Frequency
Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code PID reference P17.23 -100.0–100.0% 0.0% value P17.24 PID feedback value -100.0–100.0% 0.0% 5.5.16 Running at wobbling frequency Wobbling frequency is mainly applied in cases where transverse movement and winding functions are needed like textile and chemical fiber industries.
Page 128: Local Encoder Input
Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code Model P00.11 ACC time 1 0.0–3600.0s depended Model P00.12 DEC time 1 0.0–3600.0s depended 26: Wobbling frequency pause (stop at P05.01–P05. Digital input current frequency) 27: Wobbling frequency reset (revert to function selection center frequency) Amplitude of...
Page 129: Commissioning Procedures For Closed-Loop Control, Position Control And Spindle Positioning
Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code Actual frequency of P18.00 -999.9–3276.7Hz 0.0Hz encoder 0: PG card Speed measurement 1: Local; realized by HDIA and HDIB; P20.15 mode supports incremental 24V encoder only 5.5.18 Commissioning procedures for closed-loop control, position control and spindle positioning 1.
Page 130 Ecowatt Drive K320 series Basic operation guidelines ® Step 5: Closed-loop vector pilot-run Set P00.00=3, and carry out closed-loop vector control, adjust P00.10 and speed loop and current loop PI parameter in P03 group to make it run stably in the whole range. Step 6: Flux-weakening control Set flux-weakening regulator gain P03.26=0–8000, and observe the flux-weakening control effect.
Page 131 Ecowatt Drive K320 series Basic operation guidelines ® Adjust P00.10 and speed loop and current loop PI parameter in P03 group to make it run stably in the whole range. If oscillation occurred, reduce the value of P03.00, P03.03, P03.09 and P03.10.
Page 132 Ecowatt Drive K320 series Basic operation guidelines ® meanwhile, the parameters of pulse string AB is still set by P21 group. In speed mode, the filter time of pulse string AB is determined by P21.29. Step 8: The input frequency of pulse string is the same with the feedback frequency of encoder pulse, the relation between them can be changed by altering P21.11 (numerator of position command ratio) and P21.12 (denominator of position command ratio) Step 9: When running command or servo enabling is valid (by setting P21.00 or terminal...
Page 133 Ecowatt Drive K320 series Basic operation guidelines ® b) There are four zero positions in P22 group, users can choose one out of four zeroing positions by setting zeroing input terminal selection (46, 47) in P05 group. When executing zeroing function, the motor will stop accurately at corresponding zeroing position according to the set positioning direction, which can be viewed via P18.10.
Page 134 Ecowatt Drive K320 series Basic operation guidelines ® connection; At this point, the belt may slip during high-speed running and cause inaccurate positioning, it is recommended to install proximity switch on the spindle. c) The encoder is installed on the spindle, and the motor shaft is connected to the spindle with belt, the drive ratio is not necessarily 1:1.
Page 135 Ecowatt Drive K320 series Basic operation guidelines ® Step 7: Cyclic positioning operation Set P21.16.bit1=1 to enable cyclic positioning. The cyclic positioning is divided into continuous mode and repetitive mode; users can also carry out cyclic positioning through terminal function (no. 55, enable digital positioning cycle) 6.
Page 136: Fault Handling
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 with Kruger Run again Proper running Related parameter list: Function Name Description Default code P07.27...
Page 137 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code P07.31 4th-last fault type 4: Overcurrent during acceleration (OC1) 5: Overcurrent during deceleration (OC2) 6: Overcurrent during constant speed running (OC3) 7: Overvoltage during acceleration (OV1) 8: Overvoltage during deceleration (OV2) 9: Overvoltage during constant speed running (OV3) 10: Bus undervoltage fault (UV)
Page 138 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default 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)
Page 139 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code slot 3 (C3-Er) 66: EtherCAT communication fault (E-CAT) 67: Bacnet communication fault (E-BAC) 68: DeviceNet communication fault (E-DEV) 69: CAN slave fault in master/slave synchronization (S-Err) 70: Expansion card PT100 overtemperature (OtE1) 71: Expansion card PT1000 overtemperature (OtE2)
Page 140 Ecowatt Drive K320 series Basic operation guidelines ® Function Name Description Default code Bus voltage at last P07.45 0.0V fault Max. temperature at P07.46 -20.0–120.0°C 0.0°C last fault Input terminal status P07.47 at last fault Output terminal status P07.48 at last fault Running frequency at P07.49 0.00Hz...
Page 141: Function Parameter List
Ecowatt Drive K320 series Function parameter list ® 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 142 Ecowatt Drive K320 series Function parameter list ® press the PRG/ESC key to enter the function code editing interface. You need to enter the correct user password to enter the interface. For the factory parameters, you need to enter the correct factory password to enter the interface.
Page 143 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code The upper limit of the running frequency is the upper limit of the output frequency of the VFD, which is lower than or equal to the max. output frequency. Upper limit of When the set frequency is higher than the P00.04...
Page 144 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Reference object of 0: Max. output frequency B frequency P00.08 ○ 1: A frequency command command 0: A 1: B Combination 2: (A+B) P00.09 mode of setting ○...
Page 145 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code The relationship between models and carrier frequencies is as follows: Default carrier Model frequency 2.2–15kW 4kHz Higher than 18.5kW 2kHz Advantage of high carrier frequency: ideal current waveform, little current harmonic wave and motor noise.
Page 146 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code cases 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 147 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code The function code indicates the initial frequency during VFD start. See P01.02 Starting frequency P01.01 (Starting frequency hold time) for detailed 0.50Hz ◎ of direct start information.
Page 148 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code increases or decreases linearly. 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 149 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Starting frequency Starting frequency of DC braking for stop: P01.09 of DC braking for During the deceleration to stop, the VFD 0.00Hz ○ stop starts DC braking for stop when running frequency reaches the starting frequency Demagnetization P01.10...
Page 150 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 0: Switch at zero frequency FWD/REV running 1: Switch at the starting frequency P01.14 ◎ 2: Switch after the speed reaches the stop switching mode speed with a delay 0.00–100.00Hz P01.15 Stop speed...
Page 151 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code limit one 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 152 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code After a VFD running command is given, the VFD is in standby state and restarts P01.23 Start delay with the delay defined by P01.23 to 0.0s ○...
Page 153 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Starting frequency P01.33 of braking for 0–P00.03 0.00Hz ○ jogging to stop Delay to enter P01.34 0–3600.0s 0.0s ○ sleep P02 group––Parameters of motor 1 Function Name Description Default...
Page 154 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Magnetic saturation P02.12 0.0–100.0% 68.0% ○ coefficient 2 of iron core of AM 1 Magnetic saturation P02.13 0.0–100.0% 57.0% ○ coefficient 3 of iron core of AM 1 Magnetic saturation P02.14...
Page 155 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code protection value needs to be adjusted properly, compensation indicates lowering overload protection threshold of the motor whose running frequency is lower than 30Hz. 2: Variable-frequency motor protection (without speed compensation).
Page 156 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 0: Display by motor type. In this mode, Parameter display only parameters related to the present P02.29 selection of motor motor type are displayed. ○ 1: Display all. In this mode, all the motor parameters are displayed.
Page 157 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code integral time small, system oscillation and overshoot may occur; if proportional gain is too small, stable oscillation or speed offset may occur. PI parameters have a close relationship with the inertia of the system.
Page 158 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 0–1: Keypad (P03.12) 2: AI1 3: AI2 4: AI3 5: Pulse frequency HDIA 6: Multi-step torque 7: Modbus communication Torque setting 8: PROFIBUS/CANopen/DeviceNet P03.11 ○ method communication 9: Ethernet communication 10: Pulse frequency HDIB...
Page 159 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Setting source of reverse rotation 0: Keypad (P03.17) upper-limit P03.15 ○ 1–11: Same as those of P03.14 frequency in torque control Forward rotation upper-limit The function codes are used to set the P03.16 frequency set 50.00Hz...
Page 160 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Braking torque P03.21 upper limit set 180.0% ○ through keypad Weakening Used when the AM is in flux-weakening coefficient in control. P03.22 ○ constant power zone Flux-weakening coefficient of motor Min.
Page 161 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Static friction P03.28 0.0% compensation 0.0–100.0% ○ coefficient Corresponding P03.29 1.00Hz frequency point of 0.50– P03.31 ○ static friction High speed friction P03.30 0.0–100.0% 0.0% ○ compensation coefficient Corresponding...
Page 162 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code High-frequency In the closed-loop vector control mode current-loop (P00.00=3), when the frequency is lower P03.37 1000 ○ proportional than current-loop high-frequency coefficient switching threshold (P03.39), current-loop PI parameters are P03.09 and High-frequency P03.10;...
Page 163 Ecowatt Drive K320 series Function parameter list ® P04 group––V/F control Function Name Description Default Modify code This group of function code defines the V/F curve of motor 1 to meet the needs of different loads. 0: Straight-line V/F curve, applicable to constant torque loads 1: Multi-point V/F curve 2: Torque-down V/F curve (power of 1.3)
Page 164 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code You need to select torque boost based on the load. For example, larger load requires larger torque boost, however, if the torque boost is too large, the motor will run at over-excitation, which cause...
Page 165 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Setting range of P04.03: 0.00Hz–P04.05 Setting range of P04.04: 0.0%–110.0% (of the rated voltage of motor 1) Setting range of P04.05: P04.03–P04.07 Setting range of P04.06: 0.0%–110.0% (of the rated voltage of motor 1) Setting range of P04.07: P04.05–P02.02 (rated frequency of AM 1) or P04.05–P02.16...
Page 166 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code This group of function code defines the V/F curve of motor 2 to meet the needs of different loads. 0: Straight-line V/F curve V/F curve setting 1: Multi-point V/F curve P04.13 ◎...
Page 167 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Of which, f is the rated frequency of the motor, corresponding to function code P12.02. n is the rated rotating speed of the motor, corresponding to function code P12.03.
Page 168 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code The function code is the voltage digital Voltage set setting when "keypad” is selected as the P04.28 100.0% ○ through keypad voltage setting channel. Setting range: 0.0% –100.0% Voltage increase Voltage increase time means the time P04.29...
Page 169 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code When the SM V/F control mode is enabled, the function code is used to set the reactive current of the motor when the Pull-in current 2 P04.35 10.0% output frequency is higher than the...
Page 170 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code When IF control is adopted for AM 1, the function code is used to set the output Current setting in current. The value is a percentage in P04.41 120.0% ○...
Page 171 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code End frequency point for P04.44–P00.03 P04.50 25.00Hz ○ switching off IF mode for AM 1 End frequency point for P04.49 – P00.03 P04.51 25.00Hz ○ switching off IF mode for AM 2 P05 group––Input terminals Function...
Page 172 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 17: Multi-step speed terminal 2 18: Multi-step speed terminal 3 19: Multi-step speed terminal 4 20: Multi-step speed pause 21: ACC/DEC time selection 1 22: ACC/DEC time selection 2 23: Simple PLC stop reset 24: Simple PLC pause 25: PID control pause...
Page 173 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 72: Switch to the slave 73: Trigger fire mode control 74–79: Reserved P05.07 Reserved The function code is used to set the polarity of input terminals. Input terminal When a bit is 0, the input terminal is P05.08...
Page 174 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Running FWD REV command Stop Forward running Stop Reverse running 2: Three-wire control 1. This mode defines Sin as the enabling terminal, and the running command is generated by FWD, while the direction is controlled by REV.
Page 175 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 3: Three-wire control 2. This mode defines Sin as the enabling terminal, and the running command is generated by FWD or REV, but the direction is controlled by both FWD and REV.
Page 176 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code P05.12 S1 switch-on delay 0.000s ○ P05.13 S1 switch-off delay 0.000s ○ S2 switch-on P05.14 0.000s ○ delay S2 switch-off P05.15 0.000s ○ delay The function codes specify the delay time S3 switch-on corresponding electrical...
Page 177 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code P05.31 0.00V AI2 middle value 1 ○ Corresponding setting 100% Corresponding P05.32 0.0% setting of AI2 ○ middle value 1 -10V 20mA P05.33 AI2 middle value 2 0.00V ○...
Page 178 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Corresponding setting of HDIA P05.40 -300.0%–300.0% 0.0% ○ lower limit frequency HDIA upper limit 50.000 P05.41 P05.39–50.000kHz ○ frequency Corresponding setting of HDIA P05.42 -300.0%–300.0% 100.0% ○...
Page 179 Ecowatt Drive K320 series Function parameter list ® P06 group––Output terminals Function Name Description Default Modify code 0: Open collector high-speed pulse output. The max. frequency of pulse is 50.00kHz. For details about the related functions, see P06.00 HDO output type ◎...
Page 180 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code terminal output 26: DC bus voltage established 27: Z pulse output 28: Superposing pulses 29: STO action 30: Positioning completed 31: Spindle zeroing completed 32: Spindle scale division completed 33: In speed limit EtherCat/Profinet/EtherNetIP communication virtual terminal output...
Page 181 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Y1 switch-on P06.06 0.000s ○ delay Y1 switch-off P06.07 0.000s ○ The function codes specify the delay time delay corresponding electrical level HDO switch-on P06.08 0.000s ○...
Page 182 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 11: AI2 input (0–10V) 12: AI3 input (0–10V/0–20mA) 13: HDIA input(0.00–50.00kHz) 14: Value 1 set through Modbus/Modbus TCP (0–1000) 15: Value 2 set through Modbus/Modbus TCP (0–1000) Value through PROFIBUS/CANopen/DeviceNet (0–1000)
Page 183 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code AO1 output lower The function codes define the relationship P06.17 0.0% ○ limit between the output value and analog AO1 output output. When the output value exceeds the P06.18 corresponding to 0.00V...
Page 184 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Frequency reach P06.33 0–P00.03 1.00Hz ○ detection value Frequency reach P06.34 0–3600.0s 0.5s ○ detection time P07 group––Human-machine interface Function Name Description Default Modify code 0–65535 When you set the function code to a non-zero number, password protection is enabled.
Page 185 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 4: Clear the UP/DOWN setting 5: Coast to stop 6: Switch command channels in sequence 7: Reserved Tens place: Reserved When P07.02=6, set the sequence of Sequence of switching running-command channels by switching...
Page 186 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Control board P07.13 1.00–655.35 ● software version Local P07.14 accumulative 0–65535h ● running time VFD electricity Used to display the electricity P07.15 consumption consumption of the VFD. ●...
Page 187 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 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) 20: Motor autotuning fault (tE) 21: EEPROM operation error (EEP)
Page 188 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 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) 52: PLC card customized fault 8 (P-E8) 53: PLC card customized fault 9 (P-E9)
Page 189 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Running P07.33 frequency at 0.00Hz ● present fault Ramp reference P07.34 frequency at 0.00Hz ● present fault Output voltage at P07.35 ● present fault Output current at P07.36 0.0A ●...
Page 190 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Running frequency at P07.49 0.00Hz ● 2nd-last fault Ramp reference P07.50 frequency at 0.00Hz ● 2nd-last fault Output voltage at P07.51 ● 2nd-last fault Output current at P07.52 0.0A ●...
Page 191 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code The function code is used to define the Running reference frequency during jogging. P08.06 5.00Hz ○ frequency of jog Setting range: 0.00Hz–P00.03 (Max. output frequency) ACC time for jogging means the time Model P08.07 ACC time for jog...
Page 192 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Rise time of ○ wobbling 0.1–3600.0s P08.17 5.0s frequency Fall time of ○ P08.18 wobbling 0.1–3600.0s 5.0s frequency 0.00–P00.03 (Max. output frequency) Switching 0.00Hz: No switchover frequency of P08.19 0.00Hz...
Page 193 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Auto fault reset interval: Time interval from when a fault occurred to when automatic fault reset takes effect. After VFD starts, If no fault occurred within 600s after the VFD starts, the number of automatic fault reset times is cleared.
Page 194 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Output frequency f FDT level FDT lag Time t RO1, RO2 Time t Setting range of P08.32: 0.00Hz–P00.03 (Max. output frequency) Setting range of P08.33: 0.0–100.0% (FDT1 electrical level) Setting range of P08.34: 0.00Hz–P00.03 (Max.
Page 195 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code The function code is used to set the For 220V: starting voltage energy Energy 380.0V; consumption braking. Adjust this value consumption For 380V: properly to achieve effective braking for P08.38 ○...
Page 196 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code P08.42 Reserved P08.43 Reserved 0x000–0x221 Ones place: Frequency setting selection 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 UP/DOWN...
Page 197 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 0: Save the setting at power-off. 1: Clear the setting at power-off. Hundreds place: Action selection at power-off during frequency adjusting through other communication methods 0: Save the setting at power-off. 1: Clear the setting at power-off.
Page 198 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code during magnetic flux braking, while the cooling of the stator is more effective than the rotor. The function code is used to adjust the VFD input power P08.51 display value on the AC input side.
Page 199 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 4: High-speed pulse HDIA 5: Multi-step running 6: Modbus/Modbus TCP communication Profibus/CANopen/DeviceNet communication 8: Ethernet communication 9: High-speed pulse HDIB EtherCAT/Profinet/EtherNetIP communication 11: Programmable expansion card 12: Reserved The set target of process PID is a relative value, for which 100% equals 100% of the...
Page 200 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 0: PID output is positive. When the feedback signal is greater than the PID reference value, the output frequency of the VFD will decrease to balance the PID. Example: PID control on strain during PID output unwinding.
Page 201 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code determines intensity regulation made on the change rate of deviation between PID feedback and reference by PID regulator. If feedback changes by 100% during this period, the Differential time regulation differential...
Page 202 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Set PID feedback offline detection value, Feedback offline P09.11 0.0% ○ when the detection value is no more than detection value the feedback offline detection value, and the duration exceeds the value set in P09.12, the VFD will report "PID feedback offline fault", and keypad displays PIDE.
Page 203 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code ACC/DEC time of P09.15 0.0–1000.0s 0.0s ○ PID command PID output filter P09.16 0.000–10.000s 0.000s ○ time P09.17 Reserved Low-frequency P09.18 0.00–10.00s 0.90s ○ integral time (Ti) Low-frequency P09.19 differential time...
Page 204 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code P10.02 Multi-step speed 0 0.0% ○ Running time of P10.03 0.0s(min) ○ step 0 Frequency setting range for steps from P10.04 Multi-step speed 1 0.0% ○ step 0 to step 15: -100.0–100.0%.
Page 205 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Multi-step speed Output frequency P10.26 0.0% ○ Running time of P10.27 0.0s(min) ○ step 12 Multi-step speed P10.28 0.0% ○ Running time of P10.29 0.0s(min) ○ step 13 Multi-step speed P10.30...
Page 206 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code ACC/DEC time of The description is as follows (St indicates P10.34 steps 0–7 of step): 0x0000 ○ simple PLC ACC/ ACC/ ACC/ ACC/ Code Binary BIT1 BIT0 0 00 BIT3 BIT2 1...
Page 207 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code run from the first step after restart. Continue running from step frequency when interruption occurred, namely if the VFD stops during running (caused by stop command or fault), it will record the running time of current step, and enters this step automatically after restart, then continue running at the...
Page 208 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code DC bus voltage V Overvoltage stall threshold Time t Output frequency Time t 120–150% (standard bus voltage) (380V) 136% Overvoltage stall P11.04 ○ protection voltage 120–150% (standard bus voltage) (220V) 120% During accelerated running, as the load is too large, the actual acceleration rate of...
Page 209 Ecowatt Drive K320 series Function parameter list ® 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: 0: Motor overload/underload pre-alarm,...
Page 210 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code overload pre-alarm detection time (P11.10), overload pre-alarm signal will outputted. Output current Overload pre-alarm threshold Overload P11.10 pre-alarm 1.0s ○ Time t detection time Pre-alarm time t Pre-alarm time t RO1, RO2 Time t...
Page 211 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Note: Speed deviation protection is invalid when P11.15 is set to 0.0. Speed Actual detection value Set detection value Time t Running Fault output t1<t2, the VFD continues running t2=P11.15 Setting range: 0.0–10.0s Automatic...
Page 212 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Integral coefficient Used to set the integral coefficient of the of voltage bus voltage regulator during overvoltage P11.22 ○ regulator during stall. overvoltage stall Setting range: 0–1000 Proportional Used to set the proportional coefficient of coefficient of...
Page 213 Ecowatt Drive K320 series Function parameter list ® P12 group––Parameters of motor 2 Function Name Description Default Modify code 0: Asynchronous motor (AM) P12.00 Type of motor 2 ◎ 1: Synchronous motor (SM) Rated power of Model P12.01 0.1–3000.0kW ◎ AM 2 depended Rated frequency of...
Page 214 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Magnetic saturation P12.14 0.0–100.0% ○ 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.
Page 215 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code When M=116%, protection is performed after motor overload lasts for 1 hour; when M=200%, protection is performed after motor overload lasts seconds; and when M≥400%, protection is performed immediately.
Page 216 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 0: Invalid Initial pole P13.01 1: Pulse detection method ◎ detection method 2: Pulse detection method Pull-in current is the pole positioning current. Pull-in current 1 is valid within lower limit pull-in...
Page 217 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code running frequency is lower than the value of the function code, the phase-locked loop disabled; and when the running frequency higher than that, phase-locked loop is enabled. Setting range: 0–655.35 P13.10 Reserved...
Page 218 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code The function code is used to set the data transmission speed between upper computer and the VFD. 0: 1200BPS 1: 2400BPS 2: 4800BPS 3: 9600BPS Communication 4: 19200BPS P14.01 ○...
Page 219 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 0.0 (invalid)–60.0s When the function code is set to 0.0, the communication timeout time is invalid. When the function code is set a non-zero value, the rectifier reports the " Communication Modbus/Modbus TCP communication P14.04...
Page 220 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code P14.10– Reserved P14.24 P15 group––Functions of communication expansion card Function Name Description Default Modify code P15.00– See the communication expansion card operation manual. P15.27 Master/slave CAN 0–127 communication P15.28...
Page 221 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Communication 0.0–600.0s timeout time for P16.27 If it is set to 0.0, identifying faults are not 0.0s ○ expansion card at detected. slot 1 Communication 0.0–600.0s timeout time for P16.28 If it is set to 0.0, identifying faults are not...
Page 222 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Displays current motor power; 100% relative to rated motor power, positive value is motoring state, negative value is P17.08 Motor power 0.0% ● generating state. Range: -300.0–300.0% (relative to rated motor power) Displays current output torque of the VFD;...
Page 223 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code P17.16 Linear speed 0–65535 ● P17.17 Reserved P17.18 Counting value 0–65535 ● Displays input signal of AI1 P17.19 AI1 input voltage 0.00V ● Range: 0.00–10.00V Displays input signal of AI2 P17.20 AI2 input voltage 0.00V...
Page 224 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code P17.32 Motor flux linkage 0.0%–200.0% 0.0% ● Displays the exciting current reference Exciting current P17.33 value under vector control mode 0.0A ● reference Range: -3000.0–3000.0A Displays torque current reference value Torque current P17.34 under vector control mode...
Page 225 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Braking torque P17.42 0.0%–300.0% (of the motor rated current) 180.0% ● upper limit Forward rotation upper-limit P17.43 0.00–P00.03 50.00Hz ● frequency in torque control Reverse rotation upper-limit P17.44 0.00–P00.03...
Page 226 Ecowatt Drive K320 series Function parameter list ® P18 group––Status viewing in closed-loop control Function Name Description Default Modify code The actual-measured encoder frequency; Actual frequency the value of forward running is positive; P18.00 0.0Hz ● of encoder the value of reverse running is negative. Range: -999.9–3276.7Hz Encoder position Encoder count value, quadruple frequency,...
Page 227 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code orientation, which can be eliminated by adjusting Z pulse direction of P20.02 or exchanging phase AB of encoder. 0: Forward 1: Reverse Encoder Z pulse Reserved. P18.12 0.00 ●...
Page 228 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Pole angle of Current pole position. P18.22 0.00 ● closed-loop SM Range: 0.00–359.99 Status control P18.23 0–65535 ● word 3 Pulse command (A2,B2) count value. The High-order bit of count value is accumulated only if the P18.24...
Page 229 Ecowatt Drive K320 series Function parameter list ® P19 group––Expansion card status viewing Function Name Description Default Modify code Type of card at 0–65535 P19.00 ● slot 1 0: No card Type of card at 1: PLC programmable card P19.01 ●...
Page 230 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Terminal output P19.07 status of 0–0xFFFF ● expansion I/O card HDI3 input 0.000 P19.08 frequency of 0.000–50.000kHz ● expansion I/O card AI3 input voltage P19.09 of expansion I/O 0.00–10.00V 0.00V ●...
Page 231 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Setting range: 0x00–0x99 Ones place: Low-speed filter time, Filter times of P20.05 corresponds to 2^(0–9)×125μs. 0x33 ○ encoder detection Tens place: High-speed filter times, corresponds to2^(0–9)×125μs. Speed ratio You need to set the function code when between encoder...
Page 232 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 0–3 1: Rotary autotuning (DC brake) Autotuning of 2: Static autotuning (suitable for P20.11 initial angle of resolver-type encoder, sin/cos with CD ◎ pole signal feedback) Rotary autotuning (initial...
Page 233 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 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 0: Encoder signals 1: Pulse reference signals...
Page 234 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 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...
Page 235 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 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 0: Forward...
Page 236 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code set P21.06. 0: No switching 2: Torque command 3: Speed command 3–5: Reserved Torque command level during Setting range: 0.0–100.0% (of the motor P21.05 10.0% ○ position gain rated torque) switchover...
Page 237 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Denominator of P21.12 position command Setting range: 1–65535 1000 ○ ratio 0.00–120.00% Position P21.13 For pulse string reference only (position 100.00 ○ feedforward gain control) Position 0.0–3200.0ms P21.14 feedforward filter...
Page 238 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code positioning by terminals) 0: Invalid (do not rotate) 1: Valid Bit8: Positioning enable signal selection (for cyclic positioning by terminals only; positioning function is always enabled for automatic cyclic positioning) 0: Pulse signal 1: Level signal...
Page 239 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code needed for the VFD to decelerate from Max. output frequency (P00.03) to 0hz. Setting range of P21.20: 0.01–300.00s Setting range of P21.21: 0.01–300.00s Set the hold time of waiting when target Hold time of P21.22 positioning position is reached.
Page 240 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 3: Input terminal function 69 The timing sequence of this value is the same as that of the previous value, with the only difference that the number is negative.
Page 241 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 0: Z pulse input 1: S2/S3/S4 terminal input Bit2: Search for reference point 0: Search the reference point only once 1: Search the reference point every time Bit3: Enable reference point calibration 0: Disable 1: Enable...
Page 242 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code DEC time of spindle orientation. DEC time of Spindle orientation DEC time means the P22.02 spindle time needed for the VFD to decelerate from 3.0s ○ orientation Max.
Page 243 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code This function code sets the reduction ratio of the spindle and the mounting shaft of P22.14 Spindle drive ratio 1.000 ○ the encoder. Setting range: 0.000–30.000 P22.15 sets spindle zero-point offset, if the Zero-point selected spindle zero point is P22.03, the...
Page 244 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Speed-loop Below the switching frequency 1 (P23.02), P23.01 0.200s ○ integral time 1 the speed-loop PI parameters are: P23.00 and P23.01. Above the switching frequency Low-point 2 (P23.05), the speed-loop PI parameters P23.02 frequency for...
Page 245 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Speed-loop output P23.06 0–8 (corresponding to 0–2^8/10ms) ○ filter Electromotive slip Slip compensation coefficient is used to compensation P23.07 100% adjust the slip frequency of the vector ○...
Page 246 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code P23.15– Reserved P23.19 P24 group––Encoder of motor 2 Function Name Description Default Modify code 0: Incremental encoder Encoder type 1: Resolver-type encoder P24.00 ● display 2: Sin/Cos encoder 3: Endat absolute encoder Number of pulses generated when the Encoder pulse...
Page 247 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Bit0: Enable Z pulse calibration Bit1: Enable encoder angle calibration Bit2: Enable SVC speed measurement Bit3: Reserved Bit4: Reserved Bit5: Reserved Control Bit6: Enable CD signal calibration P24.07 ○...
Page 248 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code CD signal zero P24.13 0–65535 ○ offset gain Ones place: Incremental encoder 0: without UVW Encoder type 1: with UVW P24.14 0x00 ◎ Tens place: Sin/Cos encoder selection 0: without CD signal 1: with CD signal...
Page 249 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 0–63 Encoder pulse P24.18 The filtering time is P24.18*0.25us. The ○ filter width value 0 or 1 indicates 0.25μs. 0–63 Pulse reference P24.19 The filtering time is P24.19*0.25us. The ○...
Page 250 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code 0x000–0x7F (0: Disable, 1: Enable) BIT0: S5 virtual terminal BIT1: S6 virtual terminal Virtual terminal BIT2: S7 virtual terminal P25.09 setting of 0x00 ◎ BIT3: S8 virtual terminal expansion card BIT4: S9 virtual terminal BIT5: S10 virtual terminal...
Page 251 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code The function codes define the relationship P25.24 AI3 lower limit 0.00V ○ between the analog input voltage and its Corresponding corresponding setting. When the analog P25.25 setting of AI3 0.0% ○...
Page 252 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code HDI3 high-speed 0: Input set through frequency pulse input P25.34 ◎ 1: Count function Lower limit 0.000 P25.35 0.000 kHz – P25.37 ○ frequency of HDI3 Corresponding setting of lower P25.36...
Page 253 Ecowatt Drive K320 series Function parameter list ® 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 output terminal P26.12 0x000 ○ RO10, RO9…RO3, HDO2, Y3, Y2 in sequence polarity HDO2 switch-on P26.13...
Page 254 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code RO8 switch-on P26.29 0.000s ○ delay 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 ○...
Page 255 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code P26.48– Reserved P26.52 P28 group––Master/slave control Function Name Description Default Modify code 0: Master/slave control is invalid Master/slave P28.00 1: The local machine is a master ◎...
Page 256 Ecowatt Drive K320 series Function parameter list ® Function Name Description Default Modify code Speed/torque 5.00Hz ○ mode switching P28.05 frequency point in 0.00–10.00Hz master/slave mode 2 P28.06 Slave count 0–15 ◎ P28.07– Reserved 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 Ecowatt Drive K320 series Function parameter list ® P90 group––Customized function group 1 Function Name Description Default Modify code P90.00– Reserved P90.39 P91 group––Customized function group 2 Function Name Description Default Modify code P91.00– Reserved P91.39 P92 group––Customized function group 3 Function Name Description...
Page 258: Troubleshooting
VFD is in exception state. This chapter covers most of the alarms and faults, and their possible causes and corrective measures, if users cannot figure out the alarm or fault causes, contact local Kruger office. 7.3 Fault reset You can reset the VFD through the STOP/RST key on the keypad, digital inputs, or by cutting off the VFD power.
Page 259: Details Of Faults And Solutions
Ecowatt Drive K320 series Troubleshooting ® 7.5.1 Details of faults and solutions Fault Fault type Possible cause Solution code Inverter unit OUt1 Phase-U Increase acceleration time; protection Acceleration is too fast; Replace the power unit; Inverter unit IGBT module is damaged; Check drive wires;...
Page 260 Ecowatt Drive K320 series Troubleshooting ® Fault Fault type Possible cause Solution code Grid voltage is too low; Check grid voltage; Motor Rated motor current is set Reset rated motor current; overload improperly; Check the load and adjust torque Motor stall or load jumps violently boost Increase acceleration time;...
Page 261 Ecowatt Drive K320 series Troubleshooting ® Fault Fault type Possible cause Solution code Change the VFD model, or adopt Motor capacity does not match V/F mode for control; with the VFD capacity, this fault Set proper motor type and may occur easily if the difference nameplate parameters;...
Page 262 Ecowatt Drive K320 series Troubleshooting ® Fault Fault type Possible cause Solution code The keypad wire is poorly Check the surroundings to rule contacted or disconnected; Parameter out interference source; The keypad wire is too long and download Replace the hardware and ask suffers strong interference;...
Page 263 Ecowatt Drive K320 series Troubleshooting ® Fault Fault type Possible cause Solution code Encoder Z ENC1Z pulse offline Z signal wires are disconnected Check the wiring of Z signal fault Motor over-temperature input Check the wiring of motor terminal is valid; over-temperature input terminal Motor Exception occurred to t...
Page 264 Ecowatt Drive K320 series Troubleshooting ® Fault Fault type Possible cause Solution code Confirm whether the expansion card inserted can be supported; Stabilize the expansion card Failed to interfaces after power down, identify the There is data transmission in and confirm whether fault still expansion interfaces of card slot 1, however, it F1-Er...
Page 265 Ecowatt Drive K320 series Troubleshooting ® Fault Fault type Possible cause Solution code Confirm whether the expansion card inserted can be supported; Communicati Stabilize the expansion card on timeout interfaces after power down, occurred to There is no data transmission in and confirm whether fault still C2-Er interfaces of card slot 2...
Page 266: Other States
Ecowatt Drive K320 series Troubleshooting ® Fault Fault type Possible cause Solution code EtherCat card There is no data transmission Check whether the communicati E-CAT between the communication card communication card wiring is on timeout and the host computer (or PLC) loose or dropped fault BACNet card...
Page 267: Analysis On Common Faults
Ecowatt Drive K320 series Troubleshooting ® 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: Motor Vibrates
Ecowatt Drive K320 series Troubleshooting ® 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...
Page 269: Overvoltage
Ecowatt Drive K320 series Troubleshooting ® 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: Unusual Heating Of Motor
Ecowatt Drive K320 series Troubleshooting ® 7.6.5 Unusual heating of motor Unusual heating of the motor Set the motor Whether the motor parameters parameters are set correctly correctly? Whether parameter Parameter autotuning is autotune performed? Whether the VFD runs at a low speed all the time? Use a variable- Whether it is a variable-...
Page 271: Vfd Overheating
Ecowatt Drive K320 series Troubleshooting ® 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: Motor Stalls During Acc
Ecowatt Drive K320 series Troubleshooting ® 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: Overcurrent
Ecowatt Drive K320 series Troubleshooting ® 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: Countermeasures On Common Interference
Ecowatt Drive K320 series Troubleshooting ® 7.7 Countermeasures on common interference 7.7.1 Interference on meter switches and sensors Interference phenomenon Pressure, temperature, displacement, and other signals of a sensor are collected and displayed by a human-machine interaction device. The values are incorrectly displayed as follows after the VFD is started: 1.
Page 275: Interference On Rs485 Communication
Ecowatt Drive K320 series Troubleshooting ® Note: When a decoupling capacitor is required, add it to the terminal of the device connected  to the sensor. For example, if a thermocouple is to transmit signals of 0 to 20 mA to a temperature meter, the capacitor needs to be added on the terminal of the temperature meter;...
Page 276: Stop Failure And Indicator Shimmering Due To Motor Cable Coupling
Ecowatt Drive K320 series Troubleshooting ® use a multimeter to measure and ensure that the resistance between the ground block and PE terminal is lower than 1.5 Ω). 2. Do not connect the VFD and motor to the same ground terminal as the upper computer. It is recommended that you connect the VFD and motor to the power ground, and connect the upper computer separately to a ground stud.
Page 277: Leakage Current And Interference On Rcd
Ecowatt Drive K320 series Troubleshooting ® 7.7.4 Leakage current and interference on RCD The VFD outputs high-frequency PWM voltage to drive motors. In this process, the distributed capacitance between the internal IGBT of the VFD and the heat sink and that between the stator and rotor of a motor may inevitably cause the VFD to generate high-frequency leakage current to the ground.
Page 278: Live Device Chassis
Ecowatt Drive K320 series Troubleshooting ® 7.7.5 Live device chassis After the VFD is started, there is sensible voltage on the chassis, and you may feel an electric shock when touching the chassis. The chassis, however, is not live (or the voltage is far lower than the human safety voltage) when the VFD is powered on but not running.
Page 279: Maintenance
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. The following table describes the routine maintenance periods recommended by Kruger. Subject Item Method...
Page 280 Ecowatt Drive K320 series Maintenance ® Subject Item Method Criterion Discoloration of copper bars does not mean that they cannot work properly. Check whether the conductors are deformed or No exception Visual inspection their color change due to occurs. Conductor and overheat.
Page 281 Check whether there are Ventilation foreign matters blocking or No exception Visual inspection duct attached to the cooling fan, occurs. air inlets, or air outlets. For more details about maintenance, contact the local Kruger office, or visit our website www.krugerfan.com. -272-...
Page 282: Cooling Fan
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 Kruger. Cooling fan replacement ...
Page 283 Ecowatt Drive K320 series Maintenance ® 8.4 Capacitor 8.4.1 Capacitor reforming If the VFD has been left unused for a long time, you need to follow the instructions to reform the DC bus capacitor before using it. The storage time is calculated from the date the VFD is delivered.
Page 284 The electrolytic capacitor of the VFD must be replaced if it has been used for more than 35,000 hours. For details about the replacement, contact the local Kruger office. 8.5 Power cable  Read the "Safety precautions" carefully and follow the instructions to perform operations.
Page 285 Ecowatt Drive K320 series Communication ® 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...
Page 286 Ecowatt Drive K320 series Communication ® 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 287 Ecowatt Drive K320 series Communication ® According to the requirements of the RS485 industrial bus standards, all the devices need to be connected in chrysanthemum mode with one 120 Ω terminal resistor on each end, as shown in Figure 9-2. Figure 9-3 is the simplified wiring diagram, and Figure 9-4 is the practical application diagram.
Page 288 Ecowatt Drive K320 series Communication ® 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. 9.3.2 RTU 9.3.2.1 RTU communication frame structure When a controller is set to use the RTU communication mode on a Modbus network, every...
Page 289 Ecowatt Drive K320 series Communication ® RTU data frame format Modbus packet Start with a time gap End with a time gap Slave Function (with a min. length of 3.5 Data Check (with a min. length of address code bytes) 3.5 bytes) The information of a frame must be sent in a continuous data flow.
Page 290 Ecowatt Drive K320 series Communication ® Bit check on individual bytes (odd/even check) You can select the bit check mode as required, or you can choose not to perform the check, which will affect the check bit setting of each byte. Definition of even check: Before the data is transmitted, an even check bit is added to indicate whether the number of "1"...
Page 291 Ecowatt Drive K320 series Communication ® The following example is a simple CRC calculation function for your reference (using the C programming language): unsigned crc_cal_value(unsigned char*data_value,unsigned char data_length) int i; unsigned int crc_value=0xffff; while(data_length--) crc_value^=*data_value++; for(i=0;i<8;i++) if(crc_value&0x0001) crc_value=(crc_value>>1)^0xa001; else crc_value=crc_value>>1; return(crc_value);...
Page 292 Ecowatt Drive K320 series Communication ® START T1-T2-T3-T4 (transmission time of 3.5 bytes) ADDR (address) CMD (command code) Most significant byte (MSB) of the start address Least significant byte (LSB) of the start address MSB of data quantity LSB of data quantity LSB of CRC MSB of CRC T1-T2-T3-T4 (transmission time of 3.5 bytes)
Page 293 Ecowatt Drive K320 series Communication ® 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. "CMD" is "03H", indicating that the message is a VFD response to the 03H command from the master for reading data.
Page 294 Ecowatt Drive K320 series Communication ® RTU slave response (sent from the VFD to the master): START T1-T2-T3-T4 (time gap with a min. length of 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...
Page 295 Ecowatt Drive K320 series Communication ® RTU slave response: START T1-T2-T3-T4 (transmission time of 3.5 bytes) ADDR MSB of the sub-function code LSB of the sub-function code MSB of data LSB of data LSB of CRC CHK MSB of CRC CHK T1-T2-T3-T4 (transmission time of 3.5 bytes) 9.4.4 Command code 10H, continuous writing The command code 10H is used by the master to write data to the VFD.
Page 296 Ecowatt Drive K320 series Communication ® RTU slave response (sent from the VFD to the master) START T1-T2-T3-T4 (transmission time of 3.5 bytes) ADDR MSB of data writing address LSB of data writing address MSB of data quantity LSB of data quantity LSB of CRC MSB of CRC T1-T2-T3-T4 (transmission time of 3.5 bytes)
Page 297 Ecowatt Drive K320 series Communication ® 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. The application requirements can be met by modifying the value of the on-chip RAM, that is, modifying the MSB of the corresponding function code address from 0 to 1.
Page 298 Ecowatt Drive K320 series Communication ® Function Address Data description Special control command word: Bit0–1: =00: Motor 1 =01: Motor 2 Bit2: =1 Enable speed/torque control switchover =0: Disable speed/torque control switchover 2009H Bit3: =1 Clear electricity consumption =0: Not clear electricity consumption Bit4: =1 Pre-excitation;...
Page 299 Ecowatt Drive K320 series Communication ® Function Address Data description VFD fault code 2102H See the description of fault types. VFD identification 2103H K320-----0x01A2 code Running frequency 3000H 0–Fmax (Unit: 0.01Hz) Set frequency 3001H 0–Fmax (Unit: 0.01Hz) Bus voltage 3002H 0.0–2000.0V (Unit: 0.1V) Output voltage 3003H...
Page 300 2103H of the VFD). 8 MSBs Meaning 8 LSBs Meaning Kruger 0xa2 K320 vector VFD 9.4.6 Fieldbus scale In practical applications, communication data is represented in the hexadecimal form, but hexadecimal values cannot represent decimals. For example, 50.12 Hz cannot be represented in the hexadecimal form.
Page 301 Ecowatt Drive K320 series Communication ® 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 Ecowatt Drive K320 series Communication ® Code Name Description 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 inconsistent with the CRC value calculated by the lower computer. Parameter The parameter to be modified in the write operation of the upper read-only...
Page 303 Ecowatt Drive K320 series Communication ® 43 A3 Exception Error code address response code The exception response code 86H (generated based on the highest-order bit "1" of the write command 06H) indicates that it is an exception response to the write command (06H). The error code is 04H.
Page 304 Ecowatt Drive K320 series Communication ® According to the returned data, all the fault types are 0023H, that is, 35 in the decimal form, which means the maladjustment fault (STo) 9.4.8.2 Examples of write command 06H Example 1: Set the VFD whose address is 03H to be forward running. Refer to the table of other function parameters, the address of "Communication-based control command"...
Page 305 Ecowatt Drive K320 series Communication ® The command transmitted by the master is as follows: 00 03 27 10 62 14 Parameter Write Parameter address command address data If the operation is successful, the following response is returned (same as the command transmitted by the master): 00 03 27 10...
Page 306 Ecowatt Drive K320 series Communication ® If the operation is successful, the following response is returned: 20 00 00 02 4A 08 Continuous Parameter Parameter address write address quantity command Example 2: Set "ACC time" of the VFD whose address is 01H to 10s, and "DEC time" to 20s. Function Name Description...
Page 307 Ecowatt Drive K320 series Communication ® First, set the serial port to COM1. Then, set the baud rate consistently with P14.01. The data bits, check bits, and end bits must be set consistently with P14.02. If the RTU mode is selected, you need to select the hexadecimal form Input HEX.
Page 308 Ecowatt Drive K320 series Communication ® 9.5 Common communication faults Common communication faults include the following: No response is returned.  The VFD returns an exception response.  Possible causes of no response include the following: The serial port is set incorrectly. For example, the converter uses the serial port COM1, ...
Page 309 Ecowatt Drive K320 series Expansion cards ® 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 Ecowatt Drive K320 series Expansion cards ® 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 Technical...
Page 311 Ecowatt Drive K320 series Expansion cards ® Field Field Naming example identifier description 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...
Page 312  Saving data of 1K words at power failure  Supporting Bluetooth 4.0  With Kruger's mobile phone APP, you can set the parameters and monitor the states of the VFD through Bluetooth Bluetooth EC-TX501-1 ...
Page 313  Based on the CAN2.0A physical layer communication EC-TX505  Supporting the CANopen protocol card master/slave  Based on the CAN2.0B physical layer control EC-TX511  Adopting Kruger's master-slave control proprietary communication protocol card PROFINET communication EC-TX509 Supporting the PROFIBUS-DP protocol card ...
Page 314 Ecowatt Drive K320 series Expansion cards ® Name Model Specification Simplified  Applicable to 5V or 12V OC encoders incremental PG EC-PG507-12  Applicable to 5V or 12V push-pull encoders card  Applicable to 5V differential encoders IO expansion card Programmable Bluetooth/WIFI PROFIBUS-DP...
Page 315 Ecowatt Drive K320 series Expansion cards ® UVW incremental PG Resolver PG card Multi-function 24V incremental PG card EC-PG503-05 EC-PG504-00 incremental PG card card EC-PG505-24 EC-PG505-12 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.
Page 316 Ecowatt Drive K320 series Expansion cards ® The expansion card can be installed in any one of the SLOT1, SLOT2, and SLOT3 card  slots. The VFD models of 7R5P and lower can be configured with two expansion cards at the ...
Page 317 Ecowatt Drive K320 series Expansion cards ® 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...
Page 318 Ecowatt Drive K320 series Expansion cards ® A.3 Wiring 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 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 319 Ecowatt Drive K320 series Expansion cards ® RO3A RO3B RO3C +24V RO4A RO4C 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 320 Ecowatt Drive K320 series Expansion cards ® Category Sign Name Function 1. Output range: 0–10 V, 0–20 mA 2. Whether it is voltage or current output Analog output 1 AO2—GND is determined by J5. 3. Deviation ±0.5%; input of 5 V or 10 mA or higher at the temperature of 25°C S5—COM Digital input 1...
Page 321 Ecowatt Drive K320 series Expansion cards ® 485- 485+ PRO2A PRO2C PRO1A PRO1C Indicator definition: Indicator Name Function Power indicator This indicator is on when the expansion card is powered LED1 (Green) This indicator is on when the expansion card is establishing a connection with the control board;...
Page 322 Ecowatt Drive K320 series Expansion cards ® Category Sign Name Function PS1—COM Digital input 1 1. Internal impedance: 4 kΩ 2. Allowable voltage input: 12–30 V PS2—COM Digital input 2 3. Bidirectional terminal PS3—COM Digital input 3 4. Max. input frequency: 1 kHz PS4—COM Digital input 4 5.
Page 323 Ecowatt Drive K320 series Expansion cards ® A.6 Communication card function description A.6.1 Bluetooth communication card––EC-TX501 and WIFI communication card——EC-TX502 Definitions of indicators and function buttons: Indicator/button Name Function The indicator is on when the expansion card is establishing a connection with the control board;...
Page 324 Ecowatt Drive K320 series Expansion cards ® When installing a sucker antenna, install a wireless communication card on the VFD first, and then lead the SMA connector of the sucker antenna into the VFD and screw it to CN2, as shown in the following figure.
Page 325 Ecowatt Drive K320 series Expansion cards ® Connector pin Description GND_BUS Isolation ground +5V BUS Isolated power supply of 5 V DC Unused A-Line Data- (twisted pair 2) Unused Housing SHLD PROFIBUS cable shielding line +5V and GND_BUS are bus terminators. Some devices, such as the optical transceiver (RS485), may need to obtain power through these pins.
Page 326 Ecowatt Drive K320 series Expansion cards ® Indicator Name Function This indicator is on after the control board feeds power to LED4 Power indicator the communication card. Communication Expansion Card Operation Manual For details about the operation, see the A.6.3 Ethernet communication card——EC-TX504 The EC-TX504 communication card adopts standard RJ45 terminals.
Page 327 Ecowatt Drive K320 series Expansion cards ® 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 328 Ecowatt Drive K320 series Expansion cards ® A.6.5 PROFINET communication card——EC-TX509 The terminal CN2 adopts a standard RJ45 interface, where CN2 is the dual RJ45 interface, and these two RJ45 interfaces are not distinguished from each other and can be interchangeably inserted.
Page 329 Ecowatt Drive K320 series Expansion cards ® Color State Description LED5 Manufacturer-specific - depending on (Maintenance state Green the characteristics of the device indicator) PROFINET communication card and PC/PLC have been connected via a LED6/7 network cable (Network port state Green indicator) PROFINET communication card and...
Page 330 Ecowatt Drive K320 series Expansion cards ® A.7 PG expansion card function description A.7.1 Sin/Cos PG card——EC-PG502 The terminals are arranged as follows: PGND Indicator definition: Indicator Name Function This indicator is off when A1 and B1 of the encoder are Disconnection LED1 disconnected;...
Page 331 Ecowatt Drive K320 series Expansion cards ® Signal Port Function 1. Supporting interfaces whose signal type is the Pulse reference same as the encoder 2. Frequency response: 200 kHz 1. Differential output of 5 V Frequency-divided 2. Supporting frequency division of 2 , which can be output set through P20.16 or P24.16;...
Page 332 Ecowatt Drive K320 series Expansion cards ® Forward running Forward jogging PGND Fault reset HDIA HDIB +24V pulse A pulse B Upper computer A.7.2 UVW incremental PG card——EC-PG503-05 The terminals are arranged as follows: PGND -323-...
Page 333 Ecowatt Drive K320 series Expansion cards ® 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 properly LED1 State indicator connected to the control board (the period is 1s, on for 0.5s, and off for the other 0.5s);...
Page 334 Ecowatt Drive K320 series Expansion cards ® Signal Port Function 1. Absolute position (UVW information) of the UVW encoder interface hybrid encoder, differential input of 5 V 2. Response frequency: 40 kHz The following figure shows the external wiring of the EC-PG503-05 expansion card. Forward running Forward jogging PGND...
Page 335 Ecowatt Drive K320 series Expansion cards ® 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 properly LED1 Status indicator connected to the control board (the period is 1s, on for 0.5s, and off for the other 0.5s);...
Page 336 Ecowatt Drive K320 series Expansion cards ® The following figure shows the external wiring of the EC-PG504-00 expansion card. 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 337 Ecowatt Drive K320 series Expansion cards ® Indicator definition: Indicator Name Function This indicator is on when the expansion card is establishing a connection with the control board; it blinks periodically Status after the expansion card is properly connected to the control LED1 indicator board (the period is 1s, on for 0.5s, and off for the other 0.5s);...
Page 338 Ecowatt Drive K320 series Expansion cards ® The following figure shows the external wiring of the expansion card used in combination with an open collector encoder. A pull-up resistor is configured inside the PG card. Forward running Forward jogging PGND Fault reset HDIA HDIB...
Page 339 Ecowatt Drive K320 series Expansion cards ® The following figure shows the external wiring of the expansion card used in combination with a differential encoder. 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 The terminals are arranged as follows: PGND...
Page 340 Ecowatt Drive K320 series Expansion cards ® Indicator Name Function This indicator is off when A1 and B1 of the encoder are Disconnection disconnected; it is on when the encoder pulses are LED2 normal; and it blinks when an exception occurs in the indicator communication between the encoder and control board.
Page 341 Ecowatt Drive K320 series Expansion cards ® 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 PG card when it is used in combination with a push-pull encoder.
Page 342 Ecowatt Drive K320 series Expansion cards ® 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.
Page 343 Ecowatt Drive K320 series Technical data ® 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.
Page 344 When the altitude of the site where the VFD is installed is lower than 1000 m, the VFD can run at the rated power. When the altitude exceeds 1000m, derate by 1% for every increase of 100m. When the altitude exceeds 3000m, consult the local Kruger dealer or local Kruger office for details.
Page 345 The EMC product standard (EN 61800-3) describes the EMC standards and specific test methods for adjustable speed electrical power drive systems. Kruger products have strictly followed these EMC regulations. B.6 EMC regulations The EMC product standard (EN 61800-3) describes the EMC requirements on VFDs.
Page 346 Ecowatt Drive K320 series Technical data ® Note: The EMC standard IEC/EN 61800-3 no longer restricts the power distribution of VFDs, but it specifies their use, installation, and commissioning. Specialized personnel or organizations must have the necessary skills (including the EMC-related knowledge) for installing and/or performing commissioning on the electrical drive systems.
Page 347 Ecowatt Drive K320 series Dimension drawings ® 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...
Page 348 Ecowatt Drive K320 series Dimension drawings ® C.3 VFD structure Figure C-3 VFD structure diagram C.4 VFD structure C.4.1 Wall-mounting dimensions Figure C-4 2R2P–045P wall-mounting diagram -339-...
Page 349 Ecowatt Drive K320 series Dimension drawings ® H1 H2 Figure C-5 055P-090P wall-mounting diagram H1 H2 Figure C-6 110P-132P wall-mounting diagram 6- ø11.0 Figure C-7160P-220P wall-mounting diagram -340-...
Page 350 Ecowatt Drive K320 series Dimension drawings ® 6- ø13.0 Figure C-8 250P-350P wall-mounting diagram Table C-1 Wall-mounting dimensions (unit: mm) Hole VFD model Screw diameter 2R2P–003P 5R5P–7R5P 011P 243.5 015P–018P 303.5 022P–030P 340.6 328.6 037P–045P 055P–090P 110P–132P 160P–220P 250P–355P C.4.2 Flange installation dimensions Figure C-9 2R2P-090P flange installation diagram -341-...
Page 351 Ecowatt Drive K320 series Dimension drawings ® 98.0 Figure C-10 110P-132P flange installation diagram Figure C-11 160P-220P flange installation diagram Table C-2 380V flange installation dimensions (unit: mm) Hole VFD model W1 W2 W3 W4 Screw diameter 2R2P–003P 150.2 115 234 220 190 13.5 185 65.5 5R5P–7R5P 150.2 115...
Page 352 Ecowatt Drive K320 series Dimension drawings ® C.4.3 Floor installation dimensions 3- ø13.0 6- ø12.0 Figure C-12 250P–355P floor installation diagram 3- ø22.0 6- ø12.0 Figure C-13 400P-500P floor installation diagram Table C-3 380V floor installation dimensions (unit: mm) Hole VFD model Screw diameter...
Page 353 P1 terminals are equipped only for the VFD models of 160P and higher, which enable the  VFD models to be directly connected to external DC reactors. The braking units are Kruger DBU series standard braking units. For details, see the DBU  operation manual.
Page 354 Ecowatt Drive K320 series Optional peripheral accessories ® Image Name Description Cable Accessory for signal transmission Device for electric shock prevention and protection against short-to-ground that may cause current leakage fire. Select residual-current circuit Breaker breakers (RCCBs) 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 355 Ecowatt Drive K320 series Optional peripheral accessories ® D.4 Cables D.4.1 Power cables The sizes of the input power cables and motor cables must meet the local regulation. The input power cables and motor cables must be able to carry the corresponding load ...
Page 356 Ecowatt Drive K320 series Optional peripheral accessories ® 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 357 Ecowatt Drive K320 series Optional peripheral accessories ® D.4.3 Recommended cable sizes Table D.1 AC 3PH 380V(-15%)–440V(+10%) Recommended cable size (mm²) Screw VFD model R, S, T U, V, Terminal Tightening P1 (+) PB, (+) (-) screw torque (Nm) K320-2R2P-4 1.0/1.0 1.0/1.0 1.0/1.0...
Page 358 Ecowatt Drive K320 series Optional peripheral accessories ® D.4.4 Cable arrangement Motor cables must be arranged away from other cables. The motor cables of several VFDs can be arranged in parallel. It is recommended that you arrange the motor cables, input power cables, and control cables separately in different trays.
Page 359 Ecowatt Drive K320 series Optional peripheral accessories ® According to the working principle and structure of breakers, if the  manufacturer's regulation is not followed, hot ionized gases may escape from the breaker enclosure when a short-circuit occurs. To ensure safe use, exercise extra caution when installing and placing the breaker.
Page 360 VFD and motor is 50 m to 100 m, select the reactor according to the following table. If the distance is longer than 100 m, contact Kruger's technical support technicians. DC reactors can be directly connected to the VFD models of 160P or higher and the 660 V series.
Page 361 Ecowatt Drive K320 series Optional peripheral accessories ® VFD model Input reactor DC reactor Output reactor K320-7R5P-4 ACL2-5R5-4 OCL2-5R5-4 K320-011P-4 ACL2-7R5-4 OCL2-7R5-4 K320-015P-4 ACL2-011-4 OCL2-011-4 K320-018P-4 ACL2-015-4 OCL2-015-4 K320-022P-4 ACL2-018-4 OCL2-018-4 K320-030P-4 ACL2-022-4 OCL2-022-4 K320-037P-4 ACL2-037-4 OCL2-037-4 K320-045P-4 ACL2-037-4 OCL2-037-4 K320-055P-4 ACL2-045-4 OCL2-045-4...
Page 362 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. Kruger provides some of the filters for you to choose. D.7.1 Filter model description...
Page 363 Ecowatt Drive K320 series Optional peripheral accessories ® Field identifier Field description Filter performance L: General H: High-performance 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.2 AC 3PH 380V(-15%)–440V(+10%) VFD model...
Page 364 Ecowatt Drive K320 series Optional peripheral accessories ® 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...
Page 365 Ecowatt Drive K320 series Optional peripheral accessories ® Table D-3 Braking units for AC 3PH 380V(-15%)–440V(+10%) Dissipated power of braking Resistance Min. resistor (kW) applicable allowable Braking unit VFD model for 100% brake model 50% brake 80% brake brake brake resistance usage usage...
Page 366 Ecowatt Drive K320 series Optional peripheral accessories ® 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.
Page 367 Ecowatt Drive K320 series Optional peripheral accessories ® 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 368 Ecowatt Drive K320 series STO function description ® 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 369 Ecowatt Drive K320 series STO function description ® E.2 STO channel delay description The following table describes the trigger and indication delay of the STO channels. STO mode STO trigger delay and indication delay Trigger delay < 10 ms STO fault: STL1 Indication delay <...
Page 370 Appendix F Further information F.1 Product and service queries Should you have any queries about the product, contact the local Kruger office. Provide the model and serial number of the product you query about. You can visit www.krugerfan.com to find a list of Kruger offices.

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