Program Continuation:

Axis %1 drive %2 measuring circuit error of motor measuring system

%1 = NC axis number %2 = Drive number

Signal level of the motor encoder too low or disturbed.

-    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.

Check encoders, encoder lines and connectors between drive motor and 611D module. Check for temporary interruptions (loose contact) caused, for example, by movements in trailing cable.

Check the shield connection of the front plate of the closed-loop control module (top screw).

Use original, preassembled encoder cable from Siemens (high degree of shielding).

If necessary, replace the motor, encoder and/or cables.

With linear motor, check the signal level; possibly, the measuring scale of the open measuring system is polluted.

For a gearwheel encoder, check the distance between the gearwheel and the sensor. Replace the sensor or the defective gearwheel.

Replace the control module.

Check the metallized intermediate circuit cover.

Switch control OFF - ON.


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