Troubleshooting - Mitsubishi MR-J4-10A Instruction Manual

8. TROUBLESHOOTING

8. TROUBLESHOOTING
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.
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
CN1
No.
22
(Bit 2)
10 0
12 0
13 0
14 0
15 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.
[AL. 37 Parameter error] and warnings are not recorded in the alarm history.
CN1 CN1
Name
23 24
(Bit 1) (Bit 0)
1 0 Undervoltage
0 0 Memory error 1 (RAM)
0 0 Clock error
0 0 Control process error
Memory error 2
0 0
(EEP-ROM)
Table 8.1 Alarm list
Detail
Detail name
number
Voltage drop in the control circuit
10.1
power
Voltage drop in the main circuit
10.2
power
12.1 RAM error 1
12.2 RAM error 2
12.4 RAM error 4
12.5 RAM error 5
13.1 Clock error 1
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
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
15.2 EEP-ROM error during operation
8 - 1
Alarm deactivation
Stop
System
(Note 2,
3)
EDB
SD
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB