
2. ALARM NUMBER AND
BRIEF DESCRIPTIONS
B–65195EN/01
TROUBLESHOOTING AND RECOVERY
40
Alarm No. SVU, SVUC Description Remark
309 Alarm 3 α pulse coder error alarm (OVC) 3.3.6
309 Alarm 4 Pulse coder communication error alarm 3.3.8
400 Alarm1 Bit7 Overheat alarm (motor) 3.3.4
414 Alarm1 Bit5 Overload alarm (OVC) 3.3.2
414 Alarm1 Bit3 1 DC link over- voltage alarm (HV) 3.1.2
414 Alarm1 Bit6 2 Low control power voltage alarm (LV) 3.1.2
3 Low DC link voltage (LVDC) 3.1.2
414 Alarm1 Bit 2 4 Regenerative discharge control circuit failure alarm (DCSW) 3.1.2
5 Over-Regenerative discharge alarm (DCOH) 3.1.2
414 Alarm1 Bit2
Alarm1 Bit6
7 Dynamic brake circuit failure alarm (DBRLY) 3.1.2
414 Alarm1 Bit4 8 L axis over- current alarm (HCL) 3.1.2
8. L axis IPM alarm (IPML) 3.1.2
9 M axis over- current alarm (HCM) 3.1.2
9. M axis IPM alarm (IPMM) 3.1.2
b L, M axis over-current alarm (HCLM) 3.1.2
b. L, M axis IPM alarm (IPMLM) 3.1.2
416 Alarm1 Bit1 Feedback disconnected alarm 3.3.3
417 Invalid servo parameter setting alarm 3.3.5
To interpret alarms 1 to 4, see Section 3.3.1
or diagnose No. listed on the right.
Alarm1 Diagnose No. 720 to 723
Alarm2 Diagnose No. 730 to 733
Alarm3 Diagnose No. 760 to 763
Alarm4 Diagnose No. 770 to 773
2.2
ALARM NUMBER IN
Series 0-C (SERVO
ALARMS)