TABLE OF CONTENTS
B−63085EN/02
c−5
6.2 AC SPINDLE (ANALOG INTERFACE) 274.............................................
6.2.1 Outline of Spindle Control 274....................................................
6.2.1.1 Block diagram 275..............................................................
6.2.1.2 Calculation of S analog voltage and related parameters 276..............................
6.2.1.3 Tuning S analog voltage (D/A converter) 277.........................................
7. TROUBLESHOOTING 279.....................................................
7.1 CORRECTIVE ACTION FOR FAILURES 280............................................
7.1.1 Investigating the Conditions under which Failure Occurred 280...........................
7.2 NO MANUAL OPERATION NOR AUTOMATIC OPERATION CAN BE EXECUTED 282........
7.3 JOG OPERATION CANNOT BE DONE 286.............................................
7.4 HANDLE OPERATION CANNOT BE DONE 290.........................................
7.5 AUTOMATIC OPERATION CANNOT BE DONE 293.....................................
7.6 CYCLE START LED SIGNAL HAS TURNED OFF 301....................................
7.7 NO DISPLAY APPEARS AT POWER−UP 303............................................
7.8 ALARM 85 TO 87 (READER/PUNCHER INTERFACE ALARM) 305.........................
7.9 ALARM 90 (REFERENCE POSITION RETURN IS ABNORMAL) 312.......................
7.10 ALARM 300 (REQUEST FOR REFERENCE POSITION RETURN) 314.......................
7.11 ALARM 417 (DIGITAL SERVO SYSTEM IS ABNORMAL) 315.............................
7.12 ALARM 704 (SPINDLE SPEED FLUCTUATION DETECTION ALARM) 316..................
7.13 ALARM 749 (SERIAL SPINDLE COMMUNICATION ERROR) 317..........................
7.14 ALARM 750 (SPINDLE SERIAL LINK CANNOT BE STARTED) 318........................
7.15 ALARM 700 (OVERHEAT AT CONTROL SIDE) 320......................................
7.16 ALARM 900 (ROM PARITY ERROR) 321...............................................
7.17 ALARM 910, 911 (SRAM PARITY ERROR) 323..........................................
7.18 ALARM 912TO919 (DRAM PARITY ERROR) 325.......................................
7.19 ALARM 920 (WATCH DOG OR RAM PARITY) 326......................................
7.20 ALARM 924 (SERVO MODULE MOUNTING ERROR) 328................................
7.21 ALARM 930 (CPU ERROR) 328.......................................................
7.22 ALARM 950 (PMC SYSTEM ALARM) 329..............................................
7.23 ALARM 951 (PMC WATCH DOG ALARM) 330..........................................
7.24 ALARM 970 (ABNORMALITY IN THE PMC CONTROL CIRCUIT) 330.....................
7.25 ALARM 971 (NMI ALARM IN SLC) 330................................................
7.26 ALARM 972 (NMI ALARM) 331......................................................
7.27 ALARM 973 (NMI ALARM BY UNKNOWN CAUSE) 331.................................
APPENDIX
A. ALARM LIST 335.............................................................
A.1 LIST OF ALARM CODES 336........................................................
A.2 LIST OF ALARMS (PMC) 357........................................................
A.3 SPINDLE ALARMS (SERIAL SPINDLE) 367............................................
B. LIST OF MAINTENANCE PARTS 373...........................................
B.1 MAINTENANCE PARTS 374.........................................................