Siemens 300777 fault code meaning
Siemens / 300777
Series: SIMODRIVE 611D
Rotor position identification current too large
servo drive
Meaning: The current set in MD1019: $MD_CURRENT_ROTORPOS_IDENT (current rotor position identification) is greater than the permissible current for the motor and the power section used. The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY (channel not ready).
Possible causes
Source: SINUMERIK 840D/840Di/810D Diagnostics Manual 11/2006 (EN, Siemens official site) 2.3 SIMODRIVE ALARMS