1429

Category: Alarm

Cause

1. Motor encoder wiring abnormal (for example, a broken wire, no shielded twisted-pair cable, or coupling with the motor power cable)
2. Drive grounding conductor not securely connected
3. Strong interference sources near the drive

Corrective action

1. Check the motor encoder wiring and ensure that it is correct and meets wiring requirements
2. Add ferrite cores to the encoder and motor power cables
3. Securely connect the drive grounding conductor
4. Remove strong interference sources near the drive, or supply the drive and nearby strong interference sources from separate power supplies
5. Add an input line filter to the drive power input supply