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8. TROUBLESHOOTING
8. TROUBLESHOOTING
POINT
As soon as an alarm occurs, make the Servo off status and interrupt the main
circuit power.
If an alarm/warning has occurred, refer to this chapter and remove its cause.
8.1 Alarms and warning list
When a fault occurs during operation, the corresponding alarm or warning is displayed. If any alarm or warning
has occurred, refer to section 8.2 or 8.3 and take the appropriate action. When an alarm occurs, the ALM turns
OFF.
After its cause has been removed, the alarm can be deactivated in any of the methods marked
in the alarm
deactivation column. The alarm is automatically canceled after removing the cause of occurrence.
Alarm deactivation Display Name
Display Name Power Error CPU 92 Battery cable disconnection warning
OFF ON reset reset 96 Home position setting warning
10 Undervoltage 9F Battery warning
12 Memory error 1 (RAM) E0 Excessive regeneration warning
13 Clock error E1 Overload warning 1
15 Memory error 2 (EEP-ROM) E3 Absolute position counter warning
16 Encoder error 1 (At power on) E4 Parameter warning
17 Board error E6 Servo forced stop warning
19 Memory error 3 (Flash-ROM) E7 Controller forced stop warning
1A Motor combination error E8 Cooling fan speed reduction warning
20 Encoder error 2 E9 Main circuit off warning
24 Main circuit error EC Overload warning 2
25 Absolute position erase
Warnings
ED Output watt excess warning
30 Regenerative error
(Note 1)
(Note 1)
(Note 1)
31 Overspeed
32 Overcurrent
33 Overvoltage
34 Receive error 1
(Note 2)
35 Command frequency error
36 Receive error 2
37 Parameter error
45 Main circuit device overheat
(Note 1)
(Note 1)
(Note 1)
46 Servo motor overheat
(Note 1)
(Note 1)
(Note 1)
47 Cooling fan error
50 Overload 1
(Note 1)
(Note 1)
(Note 1)
51 Overload 2
(Note 1)
(Note 1)
(Note 1)
52 Error excessive
8A USB communication time-out error
8E USB communication error
Alarms
888 Watchdog
Note 1. Deactivate the alarm about 30 minutes of cooling time after removing the cause of occurrence.
2. In some controller communication status, the alarm factor may not be removed.