Gd20 fault codes
Fault Troubleshooting
Only qualified electricians are permitted to maintain the inverter. Before working on the inverter, be sure to read the instructions in the Safety Precautions section.
Alarm and Fault Indicators
Faults are indicated by LED lights. Refer to the Operation Procedure. If the TRIP light is on, an alarm or fault message on the panel screen indicates that the inverter is in an abnormal state. By using the information provided in this section, most alarms and faults can be identified and corrected. If the issue persists, contact the INVT office.
Resetting the Fault
The inverter can be reset by pressing the STOP/RST button on the keypad, through a digital input, or by turning off the power indicator. Once the fault is cleared, the motor can be restarted.
Fault Instructions and Solutions
When a fault occurs on the inverter, follow these steps:
Ensure there are no issues with the keypad. If the keypad is functioning correctly, contact your local INVT office.
If there are no problems, check the P07 parameters and review all relevant parameters to confirm the actual conditions when the fault occurred.
Refer to the table below for detailed troubleshooting steps and check the abnormal condition.
Resolve the faults and seek necessary assistance.
Clear the fault and reset the inverter to resume operation.
The following fault codes are applicable for the GD20-EU inverter concerning the current and past faults recorded in parameters P07.27 to P07.32. These codes list faults that occurred and maintain a history of past faults:
P07.27 (Current Fault Type):
0: No fault
1: OUt1
2: OUt2
3: OUt3
4: OC1 (Overcurrent during acceleration)
5: OC2 (Overcurrent during deceleration)
6: OC3 (Overcurrent at constant speed)
7: OV1 (Overvoltage during acceleration)
8: OV2 (Overvoltage during deceleration)
9: OV3 (Overvoltage at constant speed)
10: UV (Low DC bus voltage)
11: Motor overload (OL1)
12: Inverter overload (OL2)
13: Input phase loss (SPI)
14: Output phase loss (SPO)
15: Rectifier module overheating (OH1)
16: Inverter module overheating (OH2)
17: External fault (EF)
18: 485 communication error (CE)
19: Current detection fault (ItE)
20: Motor auto-tuning fault (tE)
21: EEPROM operation fault (EEP)
22: PID feedback offline (PIDE)
23: Brake unit fault (bCE)
24: Operation time exceeded (END)
25: Electrical overload (OL3)
26: Panel communication fault (PCE)
27: Parameter upload error (UPE)
28: Parameter download error (DNE)
32: Ground short circuit fault 1 (ETH1)
33: Ground short circuit fault 2 (ETH2)
34: Speed deviation fault (dEu)
35: Incorrect setting (STo)
36: Low load fault (LL)
37: Safe torque off (STO)
38: Channel 1 abnormal (STL1)
39: Channel 2 abnormal (STL2)
40: Channel 1 and 2 abnormal simultaneously (STL3)
41: Safety code FLASH CRC check fault (CrCE)
P07.28 - P07.32:
These parameters indicate previously recorded faults in sequence:
P07.28: Last fault
P07.29: Previous fault
P07.30: Second previous fault
P07.31: Third previous fault
P07.32: Fourth previous fault
These parameters display various data recorded during current and past faults of the GD20-EU inverter. You can review this information to better understand and resolve the faults.
P07.33 - P07.39 (Data recorded during current fault):
P07.33: Reference frequency of current fault (default 0.00 Hz)
P07.34: Ramp reference frequency of current fault (default 0.00 Hz)
P07.35: Output voltage of current fault (default 0V)
P07.36: Output current of current fault (default 0.0A)
P07.37: DC bus voltage of current fault (default 0.0V)
P07.38: Maximum temperature during current fault (default 0.0°C)
P07.39: Input terminal status during current fault (default 0)
P07.40 - P07.48 (Data recorded during the last fault):
P07.40: Output terminal status during current fault (default 0)
P07.41: Operation frequency during last fault (default 0.00 Hz)
P07.42: Ramp reference frequency during last fault (default 0.00 Hz)
P07.43: Output voltage during last fault (default 0V)
P07.44: Output current during last fault (default 0.0A)
P07.45: DC bus voltage during last fault (default 0.0V)
P07.46: Maximum temperature during last fault (default 0.0°C)
P07.47: Input terminal status during last fault (default 0)
P07.48: Output terminal status during last fault (default 0)
P07.49 - P07.56 (Data recorded during the second previous fault):
P07.49: Reference frequency of the second previous fault (default 0.00 Hz)
P07.50: Ramp reference frequency of the second previous fault (default 0.00 Hz)
P07.51: Output voltage of the second previous fault (default 0V)
P07.52: Output current of the second previous fault (default 0.0A)
P07.53: DC bus voltage of the second previous fault (default 0.0V)
P07.54: Maximum temperature of the second previous fault (default 0.0°C)
P07.55: Input terminal status during the second previous fault (default 0)
P07.56: Output terminal status during the second previous fault (default 0)
These parameters are used to examine the inverter’s performance and operating conditions during fault conditions. This data is extremely useful for fault detection and troubleshooting.
Only qualified electricians are permitted to maintain the inverter. Before working on the inverter, be sure to read the instructions in the Safety Precautions section.
Alarm and Fault Indicators
Faults are indicated by LED lights. Refer to the Operation Procedure. If the TRIP light is on, an alarm or fault message on the panel screen indicates that the inverter is in an abnormal state. By using the information provided in this section, most alarms and faults can be identified and corrected. If the issue persists, contact the INVT office.
Resetting the Fault
The inverter can be reset by pressing the STOP/RST button on the keypad, through a digital input, or by turning off the power indicator. Once the fault is cleared, the motor can be restarted.
Fault Instructions and Solutions
When a fault occurs on the inverter, follow these steps:
Ensure there are no issues with the keypad. If the keypad is functioning correctly, contact your local INVT office.
If there are no problems, check the P07 parameters and review all relevant parameters to confirm the actual conditions when the fault occurred.
Refer to the table below for detailed troubleshooting steps and check the abnormal condition.
Resolve the faults and seek necessary assistance.
Clear the fault and reset the inverter to resume operation.
The following fault codes are applicable for the GD20-EU inverter concerning the current and past faults recorded in parameters P07.27 to P07.32. These codes list faults that occurred and maintain a history of past faults:
P07.27 (Current Fault Type):
0: No fault
1: OUt1
2: OUt2
3: OUt3
4: OC1 (Overcurrent during acceleration)
5: OC2 (Overcurrent during deceleration)
6: OC3 (Overcurrent at constant speed)
7: OV1 (Overvoltage during acceleration)
8: OV2 (Overvoltage during deceleration)
9: OV3 (Overvoltage at constant speed)
10: UV (Low DC bus voltage)
11: Motor overload (OL1)
12: Inverter overload (OL2)
13: Input phase loss (SPI)
14: Output phase loss (SPO)
15: Rectifier module overheating (OH1)
16: Inverter module overheating (OH2)
17: External fault (EF)
18: 485 communication error (CE)
19: Current detection fault (ItE)
20: Motor auto-tuning fault (tE)
21: EEPROM operation fault (EEP)
22: PID feedback offline (PIDE)
23: Brake unit fault (bCE)
24: Operation time exceeded (END)
25: Electrical overload (OL3)
26: Panel communication fault (PCE)
27: Parameter upload error (UPE)
28: Parameter download error (DNE)
32: Ground short circuit fault 1 (ETH1)
33: Ground short circuit fault 2 (ETH2)
34: Speed deviation fault (dEu)
35: Incorrect setting (STo)
36: Low load fault (LL)
37: Safe torque off (STO)
38: Channel 1 abnormal (STL1)
39: Channel 2 abnormal (STL2)
40: Channel 1 and 2 abnormal simultaneously (STL3)
41: Safety code FLASH CRC check fault (CrCE)
P07.28 - P07.32:
These parameters indicate previously recorded faults in sequence:
P07.28: Last fault
P07.29: Previous fault
P07.30: Second previous fault
P07.31: Third previous fault
P07.32: Fourth previous fault
These parameters display various data recorded during current and past faults of the GD20-EU inverter. You can review this information to better understand and resolve the faults.
P07.33 - P07.39 (Data recorded during current fault):
P07.33: Reference frequency of current fault (default 0.00 Hz)
P07.34: Ramp reference frequency of current fault (default 0.00 Hz)
P07.35: Output voltage of current fault (default 0V)
P07.36: Output current of current fault (default 0.0A)
P07.37: DC bus voltage of current fault (default 0.0V)
P07.38: Maximum temperature during current fault (default 0.0°C)
P07.39: Input terminal status during current fault (default 0)
P07.40 - P07.48 (Data recorded during the last fault):
P07.40: Output terminal status during current fault (default 0)
P07.41: Operation frequency during last fault (default 0.00 Hz)
P07.42: Ramp reference frequency during last fault (default 0.00 Hz)
P07.43: Output voltage during last fault (default 0V)
P07.44: Output current during last fault (default 0.0A)
P07.45: DC bus voltage during last fault (default 0.0V)
P07.46: Maximum temperature during last fault (default 0.0°C)
P07.47: Input terminal status during last fault (default 0)
P07.48: Output terminal status during last fault (default 0)
P07.49 - P07.56 (Data recorded during the second previous fault):
P07.49: Reference frequency of the second previous fault (default 0.00 Hz)
P07.50: Ramp reference frequency of the second previous fault (default 0.00 Hz)
P07.51: Output voltage of the second previous fault (default 0V)
P07.52: Output current of the second previous fault (default 0.0A)
P07.53: DC bus voltage of the second previous fault (default 0.0V)
P07.54: Maximum temperature of the second previous fault (default 0.0°C)
P07.55: Input terminal status during the second previous fault (default 0)
P07.56: Output terminal status during the second previous fault (default 0)
These parameters are used to examine the inverter’s performance and operating conditions during fault conditions. This data is extremely useful for fault detection and troubleshooting.