
7. TROUBLESHOOTING
B–63505EN/02
234
7
TROUBLESHOOTING
This chapter describes troubleshooting procedure.
7.1 CORRECTIVE ACTION FOR FAILURES 235. . . . . . . . . . . . . . . . . .
7.2 NO MANUAL OPERATION NOR AUTOMATIC
OPERATION CAN BE EXECUTED 237. . . . . . . . . . . . . . . . . . . . . . .
7.3 JOG OPERATION CANNOT BE DONE 241. . . . . . . . . . . . . . . . . . . .
7.4 HANDLE OPERATION (MPG) CANNOT BE DONE 244. . . . . . . . .
7.5 AUTOMATIC OPERATION CANNOT BE DONE 246. . . . . . . . . . . .
7.6 CYCLE START LED SIGNAL HAS TURNED OFF 253. . . . . . . . . .
7.7 NO DISPLAY APPEARS AT POWER–UP 255. . . . . . . . . . . . . . . . . .
7.8 ALARM 85 TO 87
(READER/PUNCHER INTERFACE ALARM) 256. . . . . . . . . . . . . . .
7.9 ALARM 90
(REFERENCE POSITION RETURN IS ABNORMAL) 261. . . . . . . .
7.10 ALARM 300
(REQUEST FOR REFERENCE POSITION RETURN) 263. . . . . . . .
7.11 ALARM 301 TO 305
(ABSOLUTE PULSE CODER IS FAULTY) 264. . . . . . . . . . . . . . . . .
7.12 ALARM 306 TO 308
(ABSOLUTE PULSE CODER BATTERY IS LOW) 265. . . . . . . . . . .
7.13 ALARM 350 (SERIAL α PULSE CODER IS ABNORMAL) 266. . . .
7.14 ALARM 351 (SERIAL α PULSE CODER
COMMUNICATION IS ABNORMAL) 267. . . . . . . . . . . . . . . . . . . . .
7.15 ALARM 400 (OVERLOAD) 268. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.16 ALARM 401 (*DRDY SIGNAL TURNED OFF) 270. . . . . . . . . . . . .
7.17 ALARM 404 (*DRDY SIGNAL TURNED ON) 271. . . . . . . . . . . . . .
7.18 ALARM 410
(EXCESSIVE POSITION ERROR AMOUNT DURING STOP) 272. .
7.19 ALRAM 411
(EXECESSIVE POSITION ERROR DURING MOVE) 273. . . . . . . .
7.20 ALARM 414 (DIGITAL SERVO SYSTEM IS ABNORMAL) 275. . .
7.21 ALRAM 416 (DISCONNECTION ALARM) 276. . . . . . . . . . . . . . . . .
7.22 ALARM 417 (DIGITAL SERVO SYSTEM IS ABNORMAL) 277. . .
7.23 ALARM 704
(SPINDLE SPEED FLUCTUATION DETECTION ALARM) 278. . .
7.24 ALARM 749
(SERIAL SPINDLE COMMUNICATION ERROR) 279. . . . . . . . . . .
7.25 ALARM 750
(SPINDLE SERIAL LINK CANNOT BE STARTED) 280. . . . . . . . . .
7.26 ALARM 751 (SPINDLE ALARM) 282. . . . . . . . . . . . . . . . . . . . . . . .
7.27 ALARM 700 (OVERHEAT AT CONTROL SIDE) 283. . . . . . . . . . . .
7.28 ALARM 900 (ROM PARITY ERROR) 284. . . . . . . . . . . . . . . . . . . . .
7.29 ALARM 910 AND 911 (DRAM PARITY ERROR) 285. . . . . . . . . . . .
7.30 ALARM 912 AND 913 (SRAM PARITY ERROR) 286. . . . . . . . . . . .
7.31 ALARM 920 AND 921 (WATCH DOG OR RAM PARITY) 288. . . . .
7.32 ALARM 924 (SERVO MODULE MOUNTING ERROR) 289. . . . . . .
7.33 ALARM 930 (CPU ERROR) 290. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.34 ALARM 950 (PMC SYSTEM ALARM) 291. . . . . . . . . . . . . . . . . . . .
7.35 ALARM 960 (ABNORMAL 24 V INPUT POWER) 292. . . . . . . . . . .
7.36 ALARM 970 (NMI ALARM IN PMC CONTROL MODULE) 293. . .
7.37 ALARM 971 (NMI ALARM IN SLC) 294. . . . . . . . . . . . . . . . . . . . . .
7.38 ALARM 973 (NMI ALARM BY UNKNOWN CAUSE) 295. . . . . . . .