Mitsubishi Electronics MR-J2S- CL User Manual
11 - 2
11. TROUBLESHOOTING
11.2 When alarm or warning has occurred
POINT
Configure up a circuit which will detect the trouble (ALM) signal and turn
off the servo-on (SON) signal at occurrence of an alarm.
off the servo-on (SON) signal at occurrence of an alarm.
11.2.1 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 11.2.2 or 11.2.3 and take the appropriate action.
Set "1 " in parameter No. 59 to output the alarm code in ON/OFF status across the corresponding
pin and SG. Warnings (AL.90 to AL.E9) have no alarm codes. Any alarm code is output at occurrence of
the corresponding alarm. In the normal status, the signals available before alarm code setting (CN1B-19,
CN1A-18, CN1A-19) are output.
After its cause has been removed, the alarm can be deactivated in any of the methods marked in the
warning has occurred, refer to Section 11.2.2 or 11.2.3 and take the appropriate action.
Set "1 " in parameter No. 59 to output the alarm code in ON/OFF status across the corresponding
pin and SG. Warnings (AL.90 to AL.E9) have no alarm codes. Any alarm code is output at occurrence of
the corresponding alarm. In the normal status, the signals available before alarm code setting (CN1B-19,
CN1A-18, CN1A-19) are output.
After its cause has been removed, the alarm can be deactivated in any of the methods marked in the
alarm deactivation column.
(Note 2) Alarm code
Alarm deactivation
Display
CN1B-19
pin
CN1A-18
pin
CN1A-19
pin
Name
Power
OFF
ON
Press
"SET" on
current
alarm
screen.
Alarm
reset
(RES)
signal
AL.10
0
1
0
Undervoltage
AL.12
0
0
0
Memory error 1
AL.13
0
0
0
Clock error
AL.15
0
0
0
Memory error 2
AL.16
1
1
0
Encoder error 1
AL.17
0
0
0
Board error
AL.19
0
0
0
Memory error 3
AL.1A
1
1
0
Motor combination error
AL.20
1
1
0
Encoder error 2
AL.24
1
0
0
Main circuit error
AL.25
1
1
0
Absolute position erase
AL.30
0
0
1
Regenerative error
(Note 1)
(Note 1)
(Note 1)
AL.31
1
0
1
Overspeed
AL.32
1
0
0
Overcurrent
AL.33
0
0
1
Overvoltage
AL.35
1
0
1
Command pulse frequency error
AL.37
0
0
0
Parameter error
AL.39
0
0
0
Program error
AL.45
0
1
1
Main circuit device overheat
AL.46
0
1
1
Servo motor overheat
AL.50
0
1
1
Overload 1
(Note 1)
(Note 1)
(Note 1)
AL.51
0
1
1
Overload 2
(Note 1)
(Note 1)
(Note 1)
AL.52
1
0
1
Error excessive
AL.63
1
0
1
Home position return incomplete
AL.64
1
0
1
Home position setting error
AL.8A
0
0
0
Serial communication time-out error
AL.8E
0
0
0
Serial communication error
Alar
m
s
88888
0
0
0
Watchdog
AL.92
Open battery cable warning
AL.97
Program operation disable
AL.98
Software limit warning
AL.9F
Battery warning
AL.E0
Excessive regenerative warning
AL.E1
Overload warning
AL.E3
Absolute position counter warning
AL.E6
Servo emergency stop warning
Wa
rni
ngs
AL.E9
Main circuit off 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. 0: Pin-SG off (open)
1: Pin-SG on (short)