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11. TROUBLESHOOTING
11.4 When alarm or warning has occurred
POINT
Configure up a circuit which will detect the trouble (ALM) signal and turn off the
servo-on (RYn0) at occurrence of an alarm.
11.4.1 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 11.4.2 or 11.4.3 and take the appropriate action. When an alarm occurs, 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.
Alarm deactivation Display Name
A90
Home positioning incomplete
warning
A92 Open battery cable warning
A96 Home position setting error
Display Name
Power
OFF
ON
(Note3)
MR
Configurator
parameter
unit
(Note2)
Alarm
reset
(RES)
A98 Software limit warning
A10 Undervoltage A99 Stroke limit warning
A12 Memory error 1 (RAM) A9D CC-Link warning 1
A13 Clock error A9E CC-Link warning 2
Memory error 2 A9F Battery warning
A15
(EEP-ROM)
AE0 Excessive regeneration warning
Encoder error 1 AE1 Overload warning 1
A16
(At power on)
AE3 Absolute position counter warning
A17 Board error AE6 Servo emergency stop warning
Memory error 3
A19
(Flash-ROM)
AE8
Cooling fan speed reduction
warning
A1A Motor combination error AE9 Main circuit off warning
A20 Encoder error 2 AEC Overload warning 2
A24 Main circuit error
Warnings
AED Output watt excess warning
A25 Absolute position erase
(Note 1) (Note 1) (Note 1)
A30 Regenerative error
A31 Overspeed
A32 Overcurrent
A33 Overvoltage
A35 Command pulse frequency alarm
A37 Parameter error
A45 Main circuit device overheat
(Note 1)
(Note 1)
(Note 1)
A46 Servo motor overheat
(Note 1)
(Note 1)
(Note 1)
A47 Cooling fan alarm
A50 Overload 1
(Note 1)
(Note 1)
(Note 1)
A51 Overload 2
(Note 1)
(Note 1)
(Note 1)
Alarms
A52 Error excessive
A61 Operation alarm
A8A Serial communication time-out
A8D CC-Link alarm
A8E Serial communication error
888 Watchdog
Note 1. Deactivate the alarm about 30 minutes of cooling time after removing the cause of occurrence.
2. Turns on RY(n+1)A or RY(n+3)A.
3. Clicking the "Alarm reset" button on the "Alarm display" screen of MR Configurator allows an alarm to be deactivated.
Pressing the "STOP RESET" key of the parameter unit allows an alarm to be deactivated.