Mitsubishi Electric MELSERVO MR-J2 C Series, Instruction Manual

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11 - 2
11. TROUBLESHOOTING
11.2 When alarm or warning has occurred
POINT
If an alarm has occurred, detect the trouble (ALM) and turn off the servo-on
(SON).
11.2.1 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 11.2.2 or 11.2.3 and take the appropriate action.
After its cause has been removed, the alarm can be deactivated in any of the methods marked in the
alarm deactivation column.
Alarm Deactivation
Display Name Power OFF
ON
Press "SET" on
present alarm screen
Reset (RES)
A.10 Undervoltage
A.11 Board error 1
A.12 Memory error 1
A.13 Clock error
A.15 Memory error 2
A.16 Encoder error 1
A.17 Board error 2
A.18 Board error 3
A.20 Encoder error 2
A.24 Main circuit error
A.25 Absolute position erase
A.30 Regenerative error (Note) (Note)
A.31 Overspeed
A.32 Overcurrent
A.33 Overvoltage
A.35 Command pulse frequency error
A.37 Parameter error
A.46 Servo motor overheat (Note) (Note)
A.50 Overload 1 (Note) (Note)
A.51 Overload 2 (Note) (Note)
A.52 Error excessive
A.61 Operation alarm
A.8A Serial communication time-out
A.8E Serial communication error
Al
ar
m
s
8888 Watchdog
A.90 Home position return incomplete
A.92 Open battery cable warning
A.96 Home position setting warning
A.98 Software limit warning
A.9F Battery warning
A.E0 Excessive regenerative load warning
A.E1 Overload warning
A.E3 Absolute position counter warning
A.E6 Servo emergency stop
War
n
ing
s
A.E9 Main circuit off warning
Removing the cause of occurrence
deactivates the alarm automatically.
Note: After removing the cause of occurrence, allow about 30 minutes for cooling before resuming
operation.
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