Axis %1 drive %2 maximum permissible motor temperature exceeded


%1 = NC axis number

%2 = Drive number


The motor temperature (measured via the temperature sensor KTY 84 and fed to the module through the motor encoder cable) has exceeded the temperature limit in drive MD 1607: $MD_MOTOR_TEMP_SHUTDOWN_LIMIT (motor temperature shutdown limit). The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY (channel not ready).


-    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.

Motor overloaded.

Check the motor data. Possibly the machine current was too high as a result of incorrect motor data.

Check the temperature sensor (2nd sensor possible with MSD).

Check the motor encoder cable.

Motor encoder defective.

Check the motor fan.

Check the acceleration.

If necessary, use a higher-performance motor.

Winding fault in motor.

611D control module defective.

Program Continuation:

Modify MD 1230: $MD_TORQUE_LIMIT (1st torque limit), MD 1235: POWERJJMIT (1st power limit) set too high.

Clear alarm with the RESET key in all channels of this mode group. Restart part program.

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