NTC: The inverting part of IGBT module overheat 1. Check whether the fan is running normally, clean up the foreign objects on the fan that might affect its cooling effect. 2. Reduce the carrier wave....

EEP: EEPROM error. The main cause of this error is that the inverters read/write too frequently and exceed the lifetime of the EEPROM. In this case, the inverter can only be sent back to the factory for repairment.

There are a variety of conditions that may cause ERR, please confirm one by one according to the following instructions: 1. Insufficient power supply voltage, please use a multimeter to confirm whether...

PG1: Encoder input error The main cause of this error is wrong encoder input type setting Please check the P.351 setting, which should normally be set to 1 or 2.Please refer to the user manual "PG feedback...

PG2: PG card feedback error PG detection frequency is 0 and exceeds P.352 setting time. 1. Please check whether the encoder wiring is correct, power and signal lines. 2. Please check whether the connection...

PG3: Excessive speed deviation during closed-loop control During closed-loop control, if the difference between motor frequency and inverter output frequency is detected to exceed the P.353 setting value...

1. The main circuit relay action is abnormal. 2. Check whether the input of air-circuit breaker has lost phase or not.

The safety circuit may be disconnected. Check whether the jumper between control terminal S1 and SC is loose.

The three phase output is abnormal. Please check whether UVW has lost phase.