Mitsubishi Electronics MR-J2S- B User Manual
9 - 1
9. TROUBLESHOOTING
9. TROUBLESHOOTING
9.1 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 9.2 or 9.3 and take the appropriate action.
After its cause has been removed, the alarm can be deactivated in any of the methods marked in the
alarm deactivation column.
warning has occurred, refer to section 9.2 or 9.3 and take the appropriate action.
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
Power
OFF ON
Error reset
CPU reset
10
Undervoltage
12
Memory error 1
13
Clock error
15
Memory error 2
16
Encoder error 1
17
Board error
19
Memory error 3
1A
Motor combination error
20
Encoder error 2
24
Main circuit error
25
Absolute position erase
(Note 2)
30
Regenerative error
(Note 1)
(Note 1)
(Note 1)
31
Overspeed
32
Overcurrent
33
Overvoltage
34
CRC error
35
Command frequency error
36
Transfer error
37
Parameter error
45
Main circuit device overheat
(Note 1)
(Note 1)
(Note 1)
46
Servo motor overheat
(Note 1)
(Note 1)
(Note 1)
50
Overload 1
(Note 1)
(Note 1)
(Note 1)
51
Overload 2
(Note 1)
(Note 1)
(Note 1)
52
Error excessive
8E
Serial communication error
Alar
m
s
88
Watchdog
92
Open battery cable warning
96
Home position setting warning
9F
Battery warning
E0
Excessive regenerative warning
E1
Overload warning
E3
Absolute position counter warning
E4
Parameter warning
E6
Servo forced stop warning
E7
Controller forced stop warning
E9
Main circuit off warning
Wa
rni
ngs
EE
SSCNET error warning
Removing the cause of occurrence
deactivates the alarm automatically.
deactivates the alarm automatically.
Note 1. Deactivate the alarm about 30 minutes of cooling time after removing the cause of occurrence.
2. For confirming the connection to the servo system controller, the alarm may not be reset unless turning the power on twice or
more times.