Mitsubishi MR-J4-70A User Manual

8. TROUBLESHOOTING
8 - 1
8. TROUBLESHOOTING
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.
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.
Table 8.1 Alarm list
Alarm code Alarm deactivation
No.
CN1
22
(Bit 2)
CN1
23
(Bit 1)
CN1
24
(Bit 0)
Name
Detail
number
Detail name
Stop
System
(Note 2,
3)
Alarm reset
(RES)
Press the
"SET" button
on the current
alarm screen.
Power off to on
10.1
Voltage drop in the control circuit
power
EDB
10 0 1 0 Undervoltage
10.2
Voltage drop in the main circuit
power
SD
12.1 RAM error 1 DB
Alarm
12.2 RAM error 2 DB
12.4 RAM error 4 DB
12 0 0 0 Memory error 1 (RAM)
12.5 RAM error 5 DB
13.1 Clock error 1 DB
13 0 0 0 Clock error
13.2 Clock error 2 DB
14.1 Control process error 1 DB
14.2 Control process error 2 DB
14.3 Control process error 3 DB
14.4 Control process error 4 DB
14.5 Control process error 5 DB
14.6 Control process error 6 DB
14.7 Control process error 7 DB
14.8 Control process error 8 DB
14.9 Control process error 9 DB
14 0 0 0 Control process error
14.A Control process error 10 DB
15.1 EEP-ROM error at power on DB
15 0 0 0
Memory error 2
(EEP-ROM)
15.2 EEP-ROM error during operation DB

Mitsubishi MR-J4-70A Specifications

General

Brand	Mitsubishi
Model	MR-J4-70A
Category	Amplifier
Language	English