Mitsubishi Electric MELSERVO-J3W Series, Instruction Manual

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8. TROUBLESHOOTING
8 - 1
8. TROUBLESHOOTING
POINT
When an alarm with "Each axis" indicated in the "Stop method" column occurs, the
servo motor in the non-alarm-occurring axis can continue running.
If an alarm/warning has occurred, refer to this chapter and remove its cause.
8.1 Alarms and warning list
When an error occurs during operation, the corresponding alarm or warning is displayed. If any alarm or warning
has occurred, refer to section 8.3 or 8.4 and take the appropriate action. When an alarm occurs, the ALM-A/LM-
B 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
Deceleration method when
an alarm occurs (Note 5)
Display Name
Power
OFF ON
Error reset CPU reset
Detection
method
(Note 3)
Stop
method
(Note 4)
MR-J3W-
22B to MR-
J3W-1010B
MR-J3W-
0303BN6
(Note 6)
10 Undervoltage Common All axis DB EDB
11 Switch setting error Common All axis DB FR
12 Memory error 1 (RAM) Common All axis DB FR
13 Clock error Common All axis DB EDB
15 Memory error 2 (EEP-ROM) Common All axis DB EDB
16 Encoder initial communication error 1 Each axis Each axis DB FR
17 Board error Common All axis DB EDB
19 Memory error 3 (Flash-ROM) Common All axis DB FR
1A Motor combination error Each axis Each axis DB FR
1E Encoder initial communication error 2 Each axis Each axis DB FR
1F Encoder initial communication error 3 Each axis Each axis DB FR
20
Encoder normal communication error
1
Each axis Each axis DB EDB
21
Encoder normal communication error
2
Each axis Each axis DB EDB
24 Main circuit error Each axis All axis DB FR
25 Absolute position erase Each axis Each axis DB FR
30 Regenerative error (Note 1) (Note 1) (Note 1) Common All axis DB EDB (Note 7)
31 Overspeed Each axis Each axis DB EDB
32 Overcurrent Each axis All axis DB EDB (Note 8)
33 Overvoltage Common All axis DB EDB
34 SSCNET receive error 1 (Note 2) Each axis Each axis DB EDB
35 Command frequency error Each axis Each axis DB EDB
36 SSCNET receive error 2 Each axis Each axis DB EDB
37 Parameter error Each axis Each axis DB FR
45 Main circuit device overheat (Note 1) (Note 1) (Note 1) Common All axis DB EDB
46 Servo motor overheat (Note 1) (Note 1) (Note 1) Each axis Each axis DB EDB
Ala
rms
47 Cooling fan error Common All axis DB FR