Troubleshooting; Mr-J4-_A4(-Rj); Alarm And Warning List - Mitsubishi Electric MELSERVO-J4 Instruction Manual

6. TROUBLESHOOTING

6. TROUBLESHOOTING

6.1 MR-J4-_A4(-RJ)

6.1.1 Alarm and warning list

When an error occurs during operation, the corresponding alarm or warning is 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.
To output alarm codes, set [Pr. PD34] to "_ _ _ 1". Alarm codes are outputted by on/off of bit 0 to bit 2.
Warnings ([AL. 91] to [AL. F3]) do not have alarm codes. The alarm codes in the following table will be
outputted when they occur. The alarm codes will not be outputted in normal condition.
After its cause has been removed, the alarm can be deactivated in any of the methods marked ○ in the
alarm deactivation column. 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 servo motor stops with the dynamic brake without forced stop deceleration.
Alarm code
No.
CN1 CN1 CN1
22 23 24
(Bit 2) (Bit 1) (Bit 0)
10 0 1 0
12 0 0 0
13 0 0 0
14 0 0 0
15 0 0 0
POINT
Refer to "MELSERVO-J4 Servo Amplifier Instruction Manual (Troubleshooting)"
for details of alarms and warnings.
As soon as an alarm occurs, turn SON (Servo-on) off and interrupt the power.
Detail
Name
display
Voltage drop in the control circuit
10.1
power
Undervoltage
Voltage drop in the main circuit
10.2
power
12.1 RAM error 1
12.2 RAM error 2
Memory error 1
(RAM)
12.4 RAM error 4
12.5 RAM error 5
13.1 Clock error 1
Clock error
13.2 Clock error 2
14.1 Control process error 1
14.2 Control process error 2
14.3 Control process error 3
14.4 Control process error 4
14.5 Control process error 5
Control process
error
14.6 Control process error 6
14.7 Control process error 7
14.8 Control process error 8
14.9 Control process error 9
14.A Control process error 10
15.1 EEP-ROM error at power on
Memory error 2
(EEP-ROM)
15.2 EEP-ROM error during operation
method
Detail name
(Note 2,
6 - 1
Alarm deactivation
Stop
3)
EDB
SD
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
Operation
mode