Siemens 787 fault code meaning
Siemens / 787
Series: SIMODRIVE 611U
Induction motor oper.
servo drive
Meaning: The feedforward control gain for induction motors cannot be represented in the internal numerical format if the motor moment of inertia and rated motor torque were unfavorably selected.
Possible causes
Source: SIMODRIVE 611 universal Function Manual FBU 05/2010 (EN, Siemens official site) 7.3