Alarm And Warning List - Mitsubishi Electric MELSERVO-J4 series Instruction Manual

8. TROUBLESHOOTING
8. TROUBLESHOOTING

8.1 Alarm and warning list

When an error occurs during operation, the corresponding alarm and warning are displayed. When the alarm
or the warning occurs, refer to "MELSERVO-J4 Servo Amplifier Instruction Manual (Troubleshooting)" to
remove the failure. When an alarm occurs, ALM will turn off.
After its cause has been removed, the alarm can be deactivated in any of the methods marked ○ in the
alarm deactivation column in the following table. Warnings are automatically canceled after the cause of
occurrence is removed.
For the alarms and warnings in which "SD" is written in the stop method column, the axis stops with the
dynamic brake after forced stop deceleration. For the alarms and warnings in which "DB" or "EDB" is written
in the stop method column, the axis stops with the dynamic brake without forced stop deceleration.
No.
10
12
13
14
15
POINT
Refer to "MELSERVO-J4 Servo Amplifier Instruction Manual (Troubleshooting)"
for details of alarms and warnings.
As soon as an alarm occurs, make the Servo-off status and interrupt the main
circuit power.
[AL. 37 Parameter error] and warnings (except [AL. F0 Tough drive warning])
are not recorded in the alarm history.
Detail
Name
number
10.1
Undervoltage
10.2
12.1
12.2
Memory error 1 (RAM) 12.3
12.4
12.5
13.1
Clock error
13.2
14.1
14.2
14.3
14.4
14.5
Control process error
14.6
14.7
14.8
14.9
14.A
Memory error 2 15.1
(EEP-ROM)
15.2
Detail name
Voltage drop in the control circuit power
Voltage drop in the main circuit power
RAM error 1
RAM error 2
RAM error 3
RAM error 4
RAM error 5
Clock error 1
Clock error 2
Control process error 1
Control process error 2
Control process error 3
Control process error 4
Control process error 5
Control process error 6
Control process error 7
Control process error 8
Control process error 9
Control process error 10
EEP-ROM error at power on
EEP-ROM error during operation
8 - 1
Alarm reset
Stop
method
(Note 4,
5)
EDB
SD
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB