Sinumerik Alarm 300501 Axis %1 drive %2 maximum current monitoring


Sinumerik Alarm 300501 Axis %1 drive %2 maximum current monitoring

Parameters:
%1 = NC axis number
%2 = Drive number

Definitions:
1. A serious fault occured during actual current measurement.
2. The maximum current threshold was exceeded while the rotor position identification was active (FDD only).

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.
• Modify MD 1107: $MD_INVERTER_MAX_CURRENT (transistor limit current)
• Check the motor data (motor code)
• Check the controller data, current/speed controller gain too high
• Reduce MD 1145: $MD_STALL_TORQUE_REDUCTION (stall torque reduction factor).
• Check the power section and motor terminals (including motor protection), possibly power section too small
• Increase MD 1254: $MD_CURRENT_MONITOR_FILTER_TIME (time constant for current monitoring)
• Error in actual current measurement (if necessary, replace 611D power section or controller module)
• If rotor position identification is active, check MD 1019 $MD_CURRENT_ROTORPOS_IDENT (current for rotor position identification) and, if necessary, reduce the setting.

Program Continuation:
Switch control OFF – ON.

References

  1. Siemens Diagnostics Guide by Siemens
Sinumerik Alarm 300501 Axis %1 drive %2 maximum current monitoring