Sinumerik Alarm 300727 Axis %1 drive %2 reactance less than or equal to zero
Parameters:
%1 = NC axis number
%2 = Drive number
Definitions:
The value in MD 1139: $MD_STATOR_LEAKAGE_REACTANCE (stator leakage reac- tance) or MD 1140: $MD_ROTOR_LEAKAGE_REACTANCE (rotor leakage reactance) or MD 1141: $MD_MAGNETIZING_REACTANCE (magnetizing reactance) is less than or equal to zero.
Reactions:
– NC not ready.
– Channel not ready.
– NC Stop on alarm.
– NC Start disable in this channel.
– The NC switches to follow-up mode.
– Alarm display.
– Interface signals are set.
Remedy:
Please inform the authorized personnel/service department. For standard motors: Reset the drive (delete the bootfile) and repeat the startup. For third-party motors: Check and, if necessary, refer to the motor data sheet to correct MD 1139: $MD_STATOR_LEAKAGE_REACTANCE (stator leakage reactance) or MD 1140: $MD_ROTOR_LEAKAGE_REACTANCE (rotor leakage reactance) or MD 1141: $MD_MAGNETIZING_REACTANCE (magnetizing reactance).
Program Continuation:
Switch control OFF – ON.
References
- Siemens Diagnostics Guide by Siemens