Chapter 6. Suggestions and Error Corrections for Hybrid Servo DrivesC | VFD-VJ   
 
6-12 
6-6 Wiring and Installation Problem   
When wiring the drive, the most common problem is wrong wire installation or poor wiring. Please be 
aware of the possible damages that poor wiring may cause to your drives:   
1.  Screws are not fully fastened. Occurrence of sparks as impedance increases.   
2.  If a customer has opened the drive and modified the internal circuit board, the internal 
components may have been damaged.   
Solution:  
Ensure all screws are fastened when installing the hybrid servo drive. If the hybrid servo drive 
functions abnormally, send it back to the repair station. DO NOT try to reassemble the internal 
components or wire.