Replacing a pulse coder on Fanuc 0M mill

[laka]

I replaced the X axis pulse coder on my mill. The part number is A860-0304-T111. When I try to move the axis even 0.001 the motor rapids abruptly and the machine goes into an emergency stop state and I get X Axis Excess alarm.

I have since read that I may need re-time the pulse encoder? I haven’t had much luck finding any information on how to do so. Any advice?

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[jinesh66]

Sorry for late reply , I faced similar issue , after encoder replacement on seimens motor, i could solved it by tuning the motor, BTW could you solve it ?

[regina]

Yes it must be timed to the motor. This has been addressed here before. The instructions are in this post:

https://www.cnczone.com/forums/fanuc...lse-coder.html