Axis %1 drive %2 maximum current monitoring


%1 = NC axis number

%2 = Drive number


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).


-    Mode group not ready.

-    The NC switches to follow-up mode.

-    Channel not ready.

-    NC Start disable in this channel.


-    Interface signals are set.

-    Alarm display.

-    NC Stop on alarm.

-    Channel not ready.

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

Program Continuation:

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.

Switch control OFF - ON.

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