Loose screws on the DC link busbar or insufficient DC link voltage. Siemens SiePortal 3. Troubleshooting and Remedial Actions
If you have a multi-axis system, try swapping the control module with a known working one from another axis to see if the fault follows the module. simodrive 611 error 607
If the motor has a holding brake that fails to open. Loose screws on the DC link busbar or
A: Most likely internal drive aging (capacitors) or a chopper transistor that intermittently fails to turn off, dumping excess voltage into the DC link. simodrive 611 error 607
: Attempt to clear the fault by cycling the power (Power-OFF/Power-ON) to reset the Uce monitoring function in the power section.