DELIXI is a well-known electrical equipment manufacturer whose frequency converters are widely used in industrial automation. DELIXI frequency converters come in various models, and the fault codes for each model may differ slightly.
Fault code E01: Overcurrent protection
Cause: Motor overload or excessive inverter output current.
Solution: Check the motor load, reduce the load or replace it with a motor with a higher power rating; check the inverter parameter settings to ensure the current limit value is appropriate.
Fault code E02: Overvoltage protection
Cause: The mains voltage is too high or the internal voltage of the frequency converter is too high.
Solution: Check the mains voltage to ensure it is within the normal range; check the internal components of the frequency converter, such as electrolytic capacitors, to ensure they are working properly.
Fault code E03: Undervoltage protection
Cause: The mains voltage is too low or the internal voltage of the frequency converter is too low.
Solution: Check the mains voltage to ensure it is within the normal range; check the internal components of the frequency converter, such as the rectifier bridge and filter capacitors, to ensure they are working properly.
Fault code E04: Overheat protection
Cause: The internal temperature of the frequency converter is too high.
Solution: Check the inverter's cooling system, such as the fan and radiator, to ensure they are working properly; reduce the inverter load to decrease heat generation.
Fault code E05: Input phase loss protection
Cause: One phase of the inverter input power supply is missing.
Solution: Check the power supply line to ensure that the three-phase power supply is connected normally; check the internal components of the frequency converter, such as the rectifier bridge, to ensure that they are working properly.
Fault code E06: Output phase loss protection
Cause: One phase of the inverter's output power supply is missing.
Solution: Check the motor wiring to ensure the three-phase motor is wired correctly; check the internal components of the frequency converter, such as the inverter, to ensure they are working properly.
Fault code E07: Ground fault protection
Cause: Poor grounding of the frequency converter or motor.
Solution: Check the grounding wires of the frequency converter and motor to ensure they are securely connected; check the grounding resistance to ensure it is within the specified range.
Fault code E08: Overload protection
Cause: The motor has been running under overload for an extended period of time.
Solution: Check the motor load, reduce the load or replace it with a motor with a higher power rating; check the inverter parameter settings to ensure that the overload protection value is appropriate.
Fault code E09: Overfrequency protection
Cause: The inverter output frequency is too high.
Solution: Check the inverter parameter settings to ensure the frequency limit value is appropriate; reduce the operating frequency.
Fault code E10: Underfrequency protection
Cause: The inverter output frequency is too low.
Solution: Check the inverter parameter settings to ensure the frequency limit value is appropriate; increase the operating frequency.
Fault code E11: Output short circuit protection
Cause: A short circuit occurred at the output terminal of the frequency converter.
Solution: Check the motor wiring to ensure it is correct; check the internal components of the frequency converter, such as the inverter, to ensure they are working properly.
Fault code E12: Output grounding protection
Cause: The inverter output terminal is grounded.
Solution: Check the motor wiring to ensure correct grounding; check the internal components of the frequency converter, such as the inverter, to ensure they are working properly.
Fault code E13: Output overvoltage protection
Cause: The inverter output voltage is too high.
Solution: Check the motor load to ensure it is within the normal range; check the inverter parameter settings to ensure the voltage limit value is appropriate.
Fault code E14: Output undervoltage protection
Cause: The inverter output voltage is too low.
Solution: Check the mains voltage to ensure it is within the normal range; check the internal components of the frequency converter, such as the rectifier bridge and filter capacitors, to ensure they are working properly.
Fault code E15: Input overvoltage protection
Cause: The inverter input voltage is too high.
Solution: Check the mains voltage to ensure it is within the normal range; check the internal components of the frequency converter, such as the rectifier bridge and filter capacitors, to ensure they are working properly.
Fault code E16: Input undervoltage protection
Cause: The inverter input voltage is too low.
Solution: Check the mains voltage to ensure it is within the normal range; check the internal components of the frequency converter, such as the rectifier bridge and filter capacitors, to ensure they are working properly.
Fault code E17: Input phase loss protection
Cause: One phase of the inverter's input power supply is missing.
Solution: Check the power supply line to ensure that the three-phase power supply is connected normally; check the internal components of the frequency converter, such as the rectifier bridge, to ensure that they are working properly.
Fault code E18: Input overfrequency protection
Cause: The inverter input frequency is too high.
Solution: Check the power grid frequency to ensure it is within the normal range; check the inverter parameter settings to ensure the input frequency limit value is appropriate.
Fault code E19: Input underfrequency protection
Cause: The inverter input frequency is too low.
Solution: Check the power grid frequency to ensure it is within the normal range; check the inverter parameter settings to ensure the input frequency limit value is appropriate.
Fault code E20: Communication failure
Cause: Abnormal communication between the frequency converter and the controller.
Solution: Check the communication lines to ensure they are connected correctly; check the communication parameter settings of the inverter and controller to ensure they match.
