We faced trouble that our 6SN1118-0DG23-0AA1 for main spindle module was fault and LED near X35 was lit (as attachment) and our CNC stopped. The trouble have frequently occured. (about 1 time per 3 months) and we recoverd by replaced both power module and control unit. So anyone please kindly help us to explain the meaning of this LED and How to more diagnose, investigate this fault and troubleshooting? Many thank in advance.

Opas U.

Question posted twice. Please continue here:

https://support.industry.siemens.com/tf/de/en/posts/150914/

Best regards

The Helping Hand