VFD Error Codes Troubleshooting Guide
VFD Error Codes Troubleshooting Guide
This guide lists common VFD (Variable Frequency Drive) fault codes, their possible causes, and countermeasures to help you quickly diagnose and resolve issues with your CNC router.
| Fault Code | Fault Type | Possible Cause | Countermeasure |
|---|---|---|---|
| Err02 | Acceleration overcurrent | 1. Too short acceleration time 2. Low voltage 3. Small frequency converter selection |
1. Increase acceleration time 2. Set the voltage to the normal range 3. Frequency converter power increase |
| Err03 | Deceleration overcurrent | 1. Too short deceleration time 2. Low voltage |