Detailed Answer
Handling: 1. check wiring: relay output cables vs motor direction (forward/reverse swapped); 2. swap output cables (swap the hoist up/down pair); 3. VFD parameters (forward/reverse definitions); 4. some models support output logic inversion (programmer/DIP switch). LDER LD series: verify against the wiring diagram; Xingjia supports parameter inversion. Stop using immediately if the direction is reversed to prevent misoperation accidents.
| Cause | Output cables swapped |
| Fix | Swap output cables |
| Advanced | Parameter inversion |
Note:Reversed direction is a major hazard; confirm with tests before use.