Siemens 725 fault code meaning
Siemens / 725
Series: SIMODRIVE 611U
Invalid encoder pulse number
servo drive
Meaning: The encoder pulse number of the motor measuring system (P1005) is set to zero.
Possible causes
Source: SIMODRIVE 611 universal Function Manual FBU 05/2010 (EN, Siemens official site) 7.3