Siemens 003 fault code meaning
Siemens / 003
Series: SIMODRIVE 611U
Watchdog triggered NMI
servo drive
Meaning: The watchdog timer on the control module has expired. The cause is a hardware fault in the time basis on the control module. Supplementary information: only for siemens-internal error diagnostics
Possible causes
Source: SIMODRIVE 611 universal Function Manual FBU 05/2010 (EN, Siemens official site) 7.3