Siemens 742 fault code meaning
Siemens / 742
Series: SIMODRIVE 611U
V/f operation
servo drive
Meaning: In V/f operation, only drive converter frequencies of 4 or 8 kHz are permissible.
Possible causes
Source: SIMODRIVE 611 universal Function Manual FBU 05/2010 (EN, Siemens official site) 7.3