Sinumerik Alarm 300503 Axis %1 drive %2 maximum current monitoring of phase current S
Parameters:
%1 = NC axis number
%2 = Drive number
Definitions:
The phase current S is greater than or equal to 1.05 times the maximum power section current MD 1107: $MD_INVERTER_MAX_CURRENT (transistor limit current).
Reactions:
– Mode group not ready.
– Channel not ready.
– Channel not ready.
– NC Start disable in this channel.
– NC Stop on alarm.
– The NC switches to follow-up mode.
– Alarm display.
– Interface signals are set.
Remedy:
Please inform the authorized personnel/service department.
• Check max. power section current in MD 1107 $MD_INVERTER_MAX_CURRENT (transistor limit current)
• Check the motor data (motor code)
• Check the controller data
• Motor has ground or winding fault
• Check the power section and motor terminals (including motor protection)
• Error in actual current measurement (if necessary, replace 611D power section or controller module)
Program Continuation:
Switch control OFF – ON.
References
- Siemens Diagnostics Guide by Siemens