Summary of Contents for INVT Goodrive300-01A Series
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Goodrive300-01A series VFD for air compressor Preface Preface The Goodrive300-01A series variable-frequency drive (VFD) for air compressors (hereinafter referred to as Goodrive300-01A VFD) is designed and optimized based on Goodrive300-01 to be applied in synchronous/asynchronous air compressor for optimal control performance.
Goodrive300-01A series VFD for air compressor Contents Contents Preface ............................i Contents ............................ii 1 Safety precautions ........................1 1.1 Contents of this chapter ....................1 1.2 Definition of safety information ..................1 1.3 Warning symbols ......................1 1.4 Safety instruction ......................1 2 Product overview ........................
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Goodrive300-01A series VFD for air compressor Contents D.1 Application mode ......................84 D.2 RTU command code and communication data ............... 84 Appendix E Common EMC problems and troubleshooting ............90 E.1 Interference problems of meter switches and sensors ............ 90 E.2 485 communication interferences ...................
Goodrive300-01A series VFD for air compressor Safety precautions 1 Safety precautions 1.1 Contents of this chapter Read this manual carefully and follow all safety precautions before moving, installing, operating and servicing the variable-frequency drive (VFD). Should the safety precautions be ignored, physical injury or death may occur, or damage may occur to the devices.
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Goodrive300-01A series VFD for air compressor Safety precautions disconnected before wiring and inspection, and always wait for at least the time designated on the VFD or until the DC bus voltage is less than 36V. The waiting time is shown as below.
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Goodrive300-01A series VFD for air compressor Safety precautions 1.4.2 Commissioning and running Disconnect all power supplies of the VFD before terminal wiring and wait for at least the designated time after disconnecting the power supply. High voltage is present inside the VFD during running. Do not carry out any operation on the VFD except for keypad setting.
Goodrive300-01A series VFD for air compressor Product overview 2 Product overview 2.1 Product specification Category Function Specification Input voltage of the VFD (V) 3PH 380V (-15%)–440V (+10%) Rated input current (A) Refer to 2.4 "Rated specifications". Power input Rated input frequency (Hz) 50Hz or 60Hz, allowed range: 47–63Hz...
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Goodrive300-01A series VFD for air compressor Product overview Category Function Specification Over 30 kinds of fault protection functions: overcurrent, overvoltage, undervoltage, Fault protection function overtemperature, phase loss, overload, fan current imbalance, etc. Overload protection: 1 min at 120% overload; 48s at 130% overload; 24s at 150% overload;...
Goodrive300-01A series VFD for air compressor Product overview Category Function Specification position of J10). Users can choose the optional external filter which fulfills the requirements of IEC61800-3 Note: 1. Only single VFD integrated machine supports power-frequency fan output and 220V/110V power output, for example, GD300-01A-7R5G-4-CT, GD300-01A-011G-4-CT, and GD300-01A-015G-4-CT.
Goodrive300-01A series VFD for air compressor Product overview Sign Description Content T: Built-in power-frequency transformer, providing 220V/110V power supply 2.4 Rated specifications 2.4.1 Rated specifications of single-VFD products Product model Output power (kW) Input current (A) Output current (A) GD300-01A-7R5G-4 18.5...
Goodrive300-01A series VFD for air compressor Wiring instruction 3 Wiring instruction 3.1 Main circuit wiring and terminal description 3.1.1 Main circuit wiring diagram of single VFD Figure 3-1 7.5kW main circuit wiring diagram Note: There is brake circuit but no DC reactor for 7.5kW Figure 3-2 11–15kW main circuit wiring diagram...
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Goodrive300-01A series VFD for air compressor Wiring instruction Figure 3-4 132–200kW main circuit wiring diagram Note: 1. Optional external DC reactor for 132–200kW. 2. See Appendix B for filter and reactor model selection. 3.1.2 Main circuit wiring diagram of single-VFD integrated machine...
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Goodrive300-01A series VFD for air compressor Wiring instruction Figure 3-7 11–15kW main circuit terminal diagram Figure 3-8 18.5–22kW main circuit terminal diagram Figure 3-9 30–37kW main circuit terminal diagram -10-...
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Goodrive300-01A series VFD for air compressor Wiring instruction Figure 3-10 45–55kW main circuit terminal diagram Figure 3-11 75kW main circuit terminal diagram Figure 3-12 90–110kW main circuit terminal diagram -11-...
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Goodrive300-01A series VFD for air compressor Wiring instruction Figure 3-13 132–200kW main circuit terminal diagram Table 3-1 Screw specification and torque of main circuit terminals of 7.5kW-200kW single VFD · Power range (kW) Terminal screw specification Torque of torque driver (N 7.5–15...
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Goodrive300-01A series VFD for air compressor Wiring instruction 3.1.4 Main circuit terminal diagram of single-VFD integrated machine Figure 3-14 Main circuit terminal diagram of 7.5–15kW single-VFD integrated machine Table 3-3 Screw specification and torque of main circuit terminal of 7.5kW–15kW single-VFD integrated machine7.5kW–15kW...
Goodrive300-01A series VFD for air compressor Wiring instruction 3.2 Control circuit wiring and terminal description 3.2.1 Control circuit wiring diagram GD300-01A series Emergency-stop to current transformer Fan fault User-defined +24V User-defined to power detection module CN10 485+ User-defined 485- +24V...
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Goodrive300-01A series VFD for air compressor Wiring instruction Category Sign Name Function reference ground PTA1 Analog temperature 1. Resolution rate: 1° C PTB1 signal 1 PT100 signal 2. Range: -20° C–150° C input PTA2 Analog temperature 3. Detection precision: 3° C...
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Goodrive300-01A series VFD for air compressor Wiring instruction Category Sign Name Function the fan 2. Error± 3%, 25° C 3. Input impedance: 50Ω B-phase current input of Note: See Appendix C for model the fan selection of current transformer. C-phase current input of...
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Goodrive300-01A series VFD for air compressor Wiring instruction Figure 3-17 485 communication wiring diagram (isolation mode) for 75kW and above Note: When users choose to use the controller, for 75kW and above models, J10 cap can be adjusted and above wiring mode can be adopted to enhance anti-interference performance.
Goodrive300-01A series VFD for air compressor Commissioning instruction 4 Commissioning instruction 4.1 Commissioning instruction for the dual-VFD air compressor 4.1.1 Wiring diagram of the dual-VFD air compressor system Low-frequency transformer Solenoid coil 220V 110V Fan VFD RO1A RO1C GD100/GD10 RO2A...
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Goodrive300-01A series VFD for air compressor Commissioning instruction Figure 4-2 Login interface 3. Click Click Enter to enter the working environment interface, as shown in Figure 4-3. Figure 4-3 Working interface 4. Click Menu on the interface. The page shown in Figure 4-4 is displayed.
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Goodrive300-01A series VFD for air compressor Commissioning instruction 5. Click System config in the touch screen to enter the system configuration interface, as shown in Figure 4-5. Figure 4-5 System configuration interface Click Enable for the fan VFD, and perform commissioning according to the commissioning guide.
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Goodrive300-01A series VFD for air compressor Commissioning instruction Figure 4-7 Master parameter setup interface After setting the motor parameters based on the parameters on motor nameplate, click Para autotuning, and after parameter autotuning is done, click Next page to set fan motor parameters (max.
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Goodrive300-01A series VFD for air compressor Commissioning instruction Figure 4-8 Fan parameter setup interface Step 3: Click Next page to enter System Para Config or click BACK to return to system configuration. On the system configuration interface, click System Para Config. S1 functions as emergency-stop switch, select NO/NC based on the polarity of the emergency-stop switch, as shown in Figure 4-9.
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Goodrive300-01A series VFD for air compressor Commissioning instruction Figure 4-10 Debug mode interface Click Jog for the motor and the fan to determine the motor rotation direction; click Load or Unload to test the action of solenoid valve. Click BACK to enter system configuration, then, click Menu to return to the menu interface.
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Goodrive300-01A series VFD for air compressor Commissioning instruction Figure 4-12 Maintenance parameter interface 8. Choose Protection Para in the menu. The page shown in Figure 4-13 is displayed. Figure 4-13 Protection parameter interface 9. Choose Running Info in the menu. The page show in Figure 4-14 is displayed.
Goodrive300-01A series VFD for air compressor Commissioning instruction Figure 4-14 Running information interface 10. After adjusting user parameter, factory parameter and maintenance parameter according to the touch screen manual, return to “workspace” interface and click “start” to run. Note: All the parameters displayed in the interfaces in “4.1.2 Commissioning steps for dual-VFD air compressor”...
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Goodrive300-01A series VFD for air compressor Commissioning instruction see Appendix C Reactors for precautions. 4.2.2 Commissioning steps for single-VFD air compressor Refer to 4.1.2 Commissioning steps for dual-VFD air compressor, select to turn off the frequency-conversion fan on the System Config page, and after commissioning on theSystem Config page is done according to commissioning guidance, return to the menu page as shown in Figure 4-16.
Note: RO1 port of single-VFD integrated machine is connected to solenoid valve coil port by default before delivery. If the touch screen used are made by other manufactures other than INVT, please set RO1 to solenoid valve control (P06.03=28). Refer to 4.2.2 Commissioning guidance for single-VFD air compressor for the commissioning guidance of single-VFD integrated machine.
Goodrive300-01A series VFD for air compressor Function code description 5 Function code description “○” indicates the parameter value can be modified during stop and running; “◎” indicates the parameter value cannot be modified when the VFD is running; “●” indicates the parameter value is the actually detected value which cannot be modified.
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value 6: Set via multi-step speed running 7: Set via PID control 8: Set via Modbus communication 9–11: Reserved Reference object of B 0: Max. output frequency ○...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value and P21.04, P21.05, P21.06 in P21 group will stay in present value. Starting frequency of ◎ P01.01 0.00–50.00Hz 0.50Hz direct startup 0: Decelerate to stop ○...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value of the iron core of asynchronous motor 1 Saturation coefficient 3 ◎ P02.13 of the iron core of 0.0–100.0% 57.0% asynchronous motor 1 Saturation coefficient 4 ◎...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value When M=116%, protection will be applied at 1h overload; when M=150%, protection will be applied at 12 min overload; when M=180%, protection will be applied at 5 min overload;...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value different within differing power ranges, and model the default value will be configured as below after autotuning and setting power range via the touch screen.
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value V/F frequency point 1 ○ P04.03 0.00Hz–P04.05 0.00Hz of motor 1 V/F voltage point 1 of ○ P04.04 0.0%–110.0% (rated voltage of motor 1) 00.0%...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value 25: PID control pause 26–39: Reserved 40: Zero out power consumption 41: Maintain power consumption 42: Air filter blockage signal 43: Oil filter blockage signal...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value delay S4 terminal switch-off ○ P05.21 0.000–50.000s 0.000s delay S5 terminal switch-on ○ P05.22 0.000–50.000s 0.000s delay S5 terminal switch-off ○ P05.23 0.000–50.000s 0.000s...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value 4: In jogging 5: VFD fault 6–11: Reserved 12: Ready to run 13: In pre-exciting 14–19: Reserved 20: External fault is valid 21–22: Reserved...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value current of the motor) 6: Output voltage 7: Output power 8: Reserved 9: Output torque 10–13: Reserved 14: Value 1 set through Modbus...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value the operation is executed, the parameter is automatically restored to 0. Temperature of rectifier ● P07.11 0–100.0° C bridge module Temperature of ●...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value 12: VFD overload (OL2) 13: Phase loss on input side (SPI) 14: Phase loss on output side (SPO) 15: Rectifier module overheat (OH1)
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value High-frequency current ○ P08.20 0–20000 1000 loop proportional gain High-frequency current ○ P08.21 0–20000 1000 loop integral time High-frequency current ○ P08.23 loop switching 0.0–100.0% (max.
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value air compressor 0: PID output characteristic is positive: the feedback signal is larger than PID reference, which requires the VFD output frequency to...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value P09.06, the regulation quantity of differential regulator (ignoring proportional and integral actions) is the max. output frequency (P00.03). The longer the differential time, the stronger the regulation intensity.
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value protection 1: Enable input phase loss software protection Note: LED ones detects input phase loss by phase sequence detection circuit LED tens: 0: Disable output phase loss protection...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value action during fault LED ones: 0: Acts during undervoltage fault 1: Do not act during undervoltage fault LED tens: 0: Acts during automatic reset period...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value Local communication ○ P14.00 1–247, 0 is broadcast address address 0: 1200BPS 1: 2400BPS Communication baud 2: 4800BPS ○ P14.01 rated setup 3: 9600BPS...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value ● P17.06 Torque current -3000.0–3000.0A 0.0A ● P17.07 Excitation current -3000.0–3000.0A 0.0A -300.0%–300.0% (relative to rated motor ● P17.08 Motor power 0.0% power) ●...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value Setting range: 0.00–10.00V Display analog input voltage value of PT2 channel. Under air-compressor mode, connect to PT100 thermal resistor temperature sensor, different temperature...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value selection 1: Valid Note: When sleep function is valid and unloading conditions are fulfilled, the VFD decelerates to P18.12 [no-load running frequency], and then, if discharge pressure is larger than P18.06 [loading pressure] during...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value running, the motor speed is controlled by pressure PID, and the system keeps the discharge pressure constant via adjusting master speed. See 5.2 for details on pressure control process logic.
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value Loading operation is available only after the motor runs at no-load frequency in the time ○ P18.15 Loading delay time set by P18.15.
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value Setting range: 0.0–100.0 It determines the converging speed of temperature PID regulator, the larger the value of K, the stronger the converging Convergence ○...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value P18.32. Connect to the resistor whose resistance is the same with that of PT100 at 150° C, read the voltage value of P17.22, and input it to P18.33.
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value pressure is larger than P18.41, the system indicates pressure alarm by setting BIT9 of P19.14 to 1, and emergency stop will be applied.
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value ● P19.07 Running time of part 3 ● P19.08 Running time of part 4 ● P19.09 Running time of part 5 Display motor output power, it can be Actual output power of ●...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value BIT1: Oil filter blockage signal 1: Fault; 0: Normal BIT2: Separator blockage signal 1: Fault; 0: Normal BIT3: Precision splitter blockage signal 1: Fault; 0: Normal BIT4: External fault signal 1 1: Fault;...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value 1: Maintenance required; 0: Normal BIT5: Auxiliary pressure signal 1: Auxiliary pressure signal fault; 0: Normal BIT6: Auxiliary temperature signal 1: Auxiliary temperature signal fault; 0: Normal BIT7: Auxiliary pressure pre-alarm signal 1: Pressure pre-alarm;...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value temperature PID regulation of machine head, 100% corresponds to P00.03 [the max. output frequency of the fan]. Setting range: 0.00–100.00% Display the auxiliary pressure value detected at present.
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value sequence state and input phase loss hardware protection, corresponding fault will be reported when negative sequence and any phase loss occurs; otherwise, fault will not be reported.
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value 0–1 Autotuning of initial ◎ P20.11 0: No operation angle of magnetic pole 1: Rotary autotuning Actually detected ● P20.12 frequency of the -3276.8–3276.7Hz...
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Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value 1: Runs at alternative frequency of P21.10 Tens: Electronic overload (OL3) 0: Process as per P11.08 1: Run at alternative frequency of P21.10...
Goodrive300-01A series VFD for air compressor Function code description Function Default Name Parameter description Modify code value VFD, if the fault persists after the VFD continues running at alternative frequency of P21.10 in the time set by P21.11, the VFD will coast to stop;...
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Goodrive300-01A series VFD for air compressor Function code description Standby Start command Restart delay P18.16 reached No-load running Stop delay P18.14 Stop command reached First loading after start Current pressure is less than loading pressure P18.06 Loading delay P18.15 reached Enable sleep P18.01...
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Goodrive300-01A series VFD for air compressor Function code description Current pressure P18.05 P18.07 P18.06 Time Current running frequency P00.04 P18.11 P18.12 P01.15 Time In above figure, P18.05 is unloading pressure; P18.06 is loading pressure; P18.07 is the set pressure. P00.04 is upper limit frequency, P18.11 is lower limit value of load-carrying running frequency, P18.12 is no-load frequency, P01.15 is stop speed.
Goodrive300-01A series VFD for air compressor Fault information and troubleshooting 6 Fault information and troubleshooting 6.1 VFD faults and solutions Fault contents and solutions for Goodrive300-01A VFD are shown below. Fault Fault type Possible cause Solution code • Inverter unit U Acceleration is too fast.
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Goodrive300-01A series VFD for air compressor Fault information and troubleshooting Fault Fault type Possible cause Solution code • during rotating. Check grid voltage. • • The grid voltage is too low. Adopt the VFD with a larger • The load is too large.
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Goodrive300-01A series VFD for air compressor Fault information and troubleshooting Fault Fault type Possible cause Solution code standard parameter is parameter setup. • huge. Check whether upper limit • Autotuning timeout. frequency is larger than 2/3 of the rated frequency.
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Goodrive300-01A series VFD for air compressor Fault information and troubleshooting Fault Fault type Possible cause Solution code circuit fault 1 circuited to ground. is normal/motor is short • Current detection circuit is circuited to ground. • faulty. Replace the hall.
Goodrive300-01A series VFD for air compressor Fault information and troubleshooting Fault Fault type Possible cause Solution code power-frequency fan • Stator winding of 3PH of contacted. • the fan is abnormal. Measure whether the 3PH • Poor grid quality. winding impedance of the fan is balanced.
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Goodrive300-01A series VFD for air compressor Fault information and troubleshooting P19.13 State type Possible cause Solution • Fan power is too small to dissipate heat effectively. • Check whether there is lubricating oil. • Check whether solenoid valve Actual voltage detected by is normal.
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Goodrive300-01A series VFD for air compressor Fault information and troubleshooting P19.14 State type Possible cause Solution The running time of part 1 Part 1 needs BIT0=1 exceeds the time set by Carry out maintenance after stop maintenance P19.00. The running time of part 2...
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Goodrive300-01A series VFD for air compressor Fault information and troubleshooting P19.14 State type Possible cause Solution dissipate heat effectively. • Pressure detection sensor is The actual voltage detected abnormal. Auxiliary pressure by P2 is larger than the • BIT9=1 The voltage is set to a too high...
Goodrive300-01A series VFD for air compressor Appendix A Appendix A Product dimension A.1 Keypad diagram Function indicator Digital display area Unit indicator Digital potentiometer Increase/decrease key Program/exit key Confirmation key Short-cut multi-function key Right shift key Run key Stop/fault reset key A.2 External keypad installation dimensions...
Goodrive300-01A series VFD for air compressor Appendix B Appendix B Optional accessories B.1 Touch screen In order to drive and manage the air compressor in an optimized manner, users can choose our VT6070E touch screen to be used in conjunction with Goodrive300-01A product. The touch screen comes with 2.5m RS485 communication cable (24V power cable included) and emergency-stop...
Goodrive300-01A series VFD for air compressor Appendix B VFD model Input filter Output filter GD300-01A-055G-4 FLT-P04150L-B FLT-L04150L-B GD300-01A-075G-4 GD300-01A-090G-4 GD300-01A-110G-4 FLT-P04240L-B FLT-L04240L-B GD300-01A-132G-4 GD300-01A-160G-4 GD300-01A-185G-4 FLT-P04400L-B FLT-L04400L-B GD300-01A-200G-4 B.3 Reactor Reactor model selections for GD300-01A are shown below. VFD power...
Goodrive300-01A series VFD for air compressor Appendix C Appendix C Current transformer of the fan C.1 Current transformer model selections Power of the cooling Rated current A of Recommended transformation fan (kW) cooling fan ratio of the transformer 0.75 40A/40mA 11.6...
Goodrive300-01A series VFD for air compressor Appendix C Pay attention to the current direction during wiring. P1 and S1 are dotted terminals, so does P2 and S2, namely the main circuit cable goes in from P1 and out from P2, and the S1 on output side of R/A phase must be connected to la, and S2 to lc.
Goodrive300-01A series VFD for air compressor Appendix D Appendix D Communication protocol D.1 Application mode The Modbus protocol of this VFD is RTU mode and the network line is RS485. D.1.1 RS485 The interface of RS485 works on semiduplex and its data signal adopts differential transmission mode which is also called balance transmission, too.
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Goodrive300-01A series VFD for air compressor Appendix D D.2.4 Definition of data address The address definition of communication data is used to control VFD operations, obtain VFD state information and set function parameters. D.2.4.1 Rules for presentation of function code address The parameter address occupies 2 bytes with the most significant byte (MSB) in the front and the least significant byte (LSB) in the behind.
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Goodrive300-01A series VFD for air compressor Appendix D Function Address Data meaning description definition attribute Upper limit torque of brake torque (0–3000, 2008H 1000 corresponds to 100.0% rated motor current) Special control command word: Bit0–1: =00: Motor 1 =01: Motor 2...
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Goodrive300-01A series VFD for air compressor Appendix D Function Address Data meaning description definition attribute The set maintenance time of part 2; 2011H Range: 0–65535 The set maintenance time of part 3; 2012H Range: 0–65535 The set maintenance time of part 4;...
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Goodrive300-01A series VFD for air compressor Appendix D Function Address Data meaning description definition attribute Bus voltage 3002H Output voltage 3003H Output current 3004H Running speed 3005H Output power 3006H Output torque 3007H Closed- loop 3008H setting Closed- loop 3009H...
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Goodrive300-01A series VFD for air compressor Appendix D Code Name Meaning 2. Slave is in fault state and cannot execute it. Some of the operation addresses are invalid or not allowed to Illegal data access. Especially the combination of the register and the address.
Goodrive300-01A series VFD for air compressor Appendix E Appendix E Common EMC problems and troubleshooting E.1 Interference problems of meter switches and sensors The sensor signal (pressure, temperature, displacement, etc) is collected and displayed via HMI device, the sensor value displayed after VFD starts is wrong, the common phenomena are listed below: ...
Goodrive300-01A series VFD for air compressor Appendix E For multi-machine connection, both ends should be connected to 120Ω terminal resistors. Solution: Check and confirm the motor ground line is connected to PE terminal of the VFD (if motor ground line has been connected to the grounding bar of VFD cabinet, measure with multimeter to confirm that the resistance between grounding bar and PE terminal is less than 1.5Ω);...
Goodrive300-01A series VFD for air compressor Appendix E action and time gap between them should be set to a value larger than 20ms eg 1s, 0.5s and 0.2s. It is recommended to use electromagnetic RCD for the electrical circuit of VFD system. Such RCD carries strong anti-interference capacity to prevent the RCD from being affected by high frequency leakage current.
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