Siemens 177 fault code meaning
Siemens / 177
Series: SIMODRIVE 611U
Start-up passive referencing P179 not possible
servo drive
Meaning: The start-up help for passive referencing determines the reference point offset in P0162 in the slave drive. The following prerequisites must be available: (permanent) position coupling exists to the master drive Master drive must be precisely at its reference point Slave drive has passed the zero mark.
Possible causes
Source: SIMODRIVE 611 universal Function Manual FBU 05/2010 (EN, Siemens official site) 7.3