2 when alarm or warning has occurred, 1 alarms and warning list, Troubleshooting – MITSUBISHI ELECTRIC MELSERVO MR-J2S- A User Manual
Page 199
10 - 6
10. TROUBLESHOOTING
10.2 When alarm or warning has occurred
POINT
Configure up a circuit which will detect the trouble (ALM) and turn off the
servo-on (SON) at occurrence of an alarm.
10.2.1 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 10.2.2 or 10.2.3 and take the appropriate action. When an alarm
occurs, ALM turns off.
Set " 1" in parameter No. 49 to output the alarm code in ON/OFF status across the corresponding
pin and SG. Warnings (AL.92 to AL.EA) 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:
ZSP, CN1A-18: INP or SA, CN1A-19: RD) 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)
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.45
0
1
1
Main circuit device overheat
(Note 1)
(Note 1)
(Note 1)
AL.46
0
1
1
Servo motor overheat
(Note 1)
(Note 1)
(Note 1)
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.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.96
Home position setting warning
AL.9F
Battery warning
AL.E0
Excessive regenerative warning
AL.E1
Overload warning
AL.E3
Absolute position counter warning
AL.E5
ABS time-out warning
AL.E6
Servo emergency stop warning
AL.E9
Main circuit off warning
Wa
rni
ngs
AL.EA
ABS servo-on warning
Removing the cause of occurrence
deactivates the alarm
automatically.
Note 1. Deactivate the alarm about 30 minutes of cooling time after removing the cause of occurrence.
2. 0: off
1: on