Siemens 511 fault code meaning
Siemens / 511
Series: SIMODRIVE 611U
Ground fault detected
servo drive
Meaning: Firmware has detected a ground fault. Measured phase currents are greater than the response value of the ground fault test configured in P1167 or the motion is greater than the maximum permitted motion for the ground fault test configured in P1168.
Possible causes
Source: SIMODRIVE 611 universal Function Manual FBU 05/2010 (EN, Siemens official site) 7.3