Never ignore intermittent 607 faults. What happens once a week will eventually happen every cycle, often taking out the entire power module. Use the diagnostic roadmap in this guide, prioritize safety, and restore your machine’s reliability.
For complex or recurring cases, download the or contact Siemens Technical Support with the exact module type (e.g., 6SN1123-1AA00-0HA1) and firmware revision. simodrive 611 error 607
If your machine control panel has just displayed “Fault 607” or “Alarm 607” on the Simodrive 611 power module, you are likely dealing with a critical drive malfunction. This article dissects every aspect of this error, from its root physical causes to step-by-step diagnostic procedures and proven repair strategies. In Siemens terminology, Error 607 is a DC link overvoltage fault . It occurs when the internal DC bus voltage of the drive inverter rises above the maximum permissible threshold. Under normal operation, the rectifier converts AC mains input into DC voltage (typically around 600V DC for a 400V AC system). The drive’s internal logic monitors this voltage constantly. Never ignore intermittent 607 faults