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

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10. TROUBLESHOOTING(ANALOG INTERFACE SPINDLE)B–<strong>62755EN</strong>/0110.9NO ROTATION ORINCORRECT SPEED(Start)Is power supplied toPCB correctly?NOYESGive a rotation command· Check input voltage· Check power circuit within PCBIs VCMD normal?NO (0V or too low)YESCheck whether MCC is on.Check voltage at VDC.YES· Check SFR, SRV,SRCM signals· Check override circuit⋅PCB is faultyIs voltage atDA2 normal?NO· Check S analog voltage· Check setting of spindlespeed· Check machine sidemagnetics circuitIs voltage normal?NO(0V)MCC is offCheck following signals :⋅*ESP signal⋅MRDY signal⋅Speed zero signal (SSTP)YES (2.6 to 3.2V)PCB is faultySFR SRV ORCM100 1 0– –01Spindle rotationForwardReverseOrientationWARNINGWhille you are checking above items, if the system mayrecover, the spindle may suddenly start its rotation.Therefore, take enough care when you access the spindleor its peripherals.408
B–<strong>62755EN</strong>/0110. TROUBLESHOOTING(ANALOG INTERFACE SPINDLE)10.10CONFIRMATION OFTRANSISTORMODULE(1)Remove PCB–1 on the spindle amplifier.(2)Turn off power of main power supply of machine side and remove themotor power line.(3)Measure resistance across the following terminals of the transistormodule on the circuit board shown below with a tester.B1 B3 B5B2 B4 B6(–)NP (+)B1B2B3UoB4B5VoB6(+)PWoUo Vo WoN(–)Judgement (Range of tester : x10 ohm)Terminal Tester Normal AbnormalC – EC – BB – EC : + 100 ohms Short, infinityC : – Infinity Short, 100 ohmsC : + 100 ohms Short, infinityC : – Infinity Short, 100 ohmsB : + 100 ohms Short, infinityB : – 100 ohms Short, infinity* When a transistor is defective, terminals across collector andemitter, and across collector and base are short–circuited.Collector (C)Base (B)Emittor (E)409
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GE Fanuc AutomationComputer Numeric
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B-62755EN/01PREFACEPREFACEDescripti
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B-62755EN/01 2.7 HOW TO REPLACE TH
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B-62755EN/01 7. AC SPINDLE (ANALOG
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B-62755EN/011DISPLAYAND OPERATION O
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B-62755EN/012. HARDWARE2.4.6Connect
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B-62755EN/012. HARDWARE2.5LED DISPL
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B-62755EN/012. HARDWARE2.5.2Main CP
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B-62755EN/012. HARDWARE2.5.4Option
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B-62755EN/012. HARDWARE2.5.1264-bit
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B-62755EN/012. HARDWARE2.6.3Control
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B-62755EN/012. HARDWARE2.6.4Modules
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B-62755EN/012. HARDWARE2.6.5CRT/MDI
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B-62755EN/012. HARDWARE(5)(4)Fan mo
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B-62755EN/012. HARDWARETable 1. Fus
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B-62755EN/012. HARDWARE2.12ADJUSTIN
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B-62755EN/013. INPUT AND OUTPUT OF
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B-62755EN/015. DIGITAL SERVO5DIGITA
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B-62755EN/016ACSPINDLE (SERIAL INTE
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Page 425 and 426: B-62755EN/01APPENDIXA. I/O UNIT MOD
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B-62755EN/01APPENDIXC. LIST OF MAIN
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B-62755EN/01APPENDIXD. BOOT SYSTEMD
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B-62755EN/01ENOTATIONAPPENDIXOF MDI
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B-62755EN/01Numbers16-TC/MC, 160-TC
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B-62755EN/01INDEXMMain CPU board, 1
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Revision RecordFANUC MAINTENANCE
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Series 16/18/160/180-Model C Maintenance Manual, GFZ-62755EN ...

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