Series 16/18/160/180-Model C Maintenance Manual, GFZ-62755EN ...

B–62755EN/0110. TROUBLESHOOTING(ANALOG INTERFACE SPINDLE)10.8ABNORMAL SOUNDAND VIBRATIONDURING ROTATION(Start)Does it occur duringdecelerationYESNOCheck waveformwith synchroscopeduring rotation· TSA· ERCheck regenerative dischargecircuit (pause of regeneration)· Check transistor moduleIf load inertia is large,decrease value of F–20* For 1S to 3S, disconnection oftransistor of discharge circuit ordischarge resistorIs abnormalityconfirmed?NOYESCheck relation betweenfrequency of vibration andspeed by changing speeds* Take enough care* Do not execute frequentlyNORemove connector CN2 duringrotation, and the machine maymove a little.Is abnormalsound heard?Electric system is abnormalYES· Check incorrect signal ofpulse generator· PCB is faulty Problem of machineIs there anyrelation?NOFeedback signal of pulse generator1 : 1YES· Check gear between spindleand spindle motor· Observe frequency of vibrationper motor rotation and checkthe mechanical element that hasthe frequency· Check incorrect signalof pulse generator· Failure of machine· PCB is faulty· Check parameters F–21,22, 25, and 26PAPPBP1/21 : 1+5V0V+5V0V407