Fanuc Oi-Mate-Tc no cycle start

[Nomee_92]

we have the cnc turning of goodway runing smooth more then 5 years yesterday it does not working on cycle start button also light is litting up when press the cycle start and there is no any alarm on display and drive.axis movement on hand mode fine zero return fine.

Please help.

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[drdos]

Check the ladder and see if G7.2 coil goes on then off when you press the cycle start button. Also check that G8.5 coil is on.

[oetkbyentc]

You may also check the Diagnostic screen located under System. The 1st screen has several items that can hold up program execution (cycle start light on but no motion)

Some items shown include; Motion, Feedrate override 0, Interlock/startlock, etc. This may provide a starting point.