When Alarm Or Warning Has Occurred; Alarms And Warning List - Mitsubishi Electric Melservo-J2-JR SERIES Instruction Manual

9. TROUBLESHOOTING

9.2 When Alarm or Warning Has Occurred

9.2.1

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 9.2.2 or 9.2.3 and take the appropriate action.
Set 1 in parameter No. 49 to output the alarm code in ON/OFF status across the corresponding pin
and SG. Warnings (A. 96 to A. E9) have no 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.
Display
CN1B-19 pin
A. 10 0
A. 11 0
A. 12 0
A. 13 0
A. 15 0
A. 16 1
A. 17 0
A. 18 0
A. 20 1
A. 24 1
A. 31 1
A. 32 1
A. 33 0
A. 35 1
A. 37 0
A. 50 0
A. 51 0
A. 52 1
A. 8E 0
8888 0
A. E1
A. E6
A. E9
Note 1.: Deactivate the alarm about 15 minutes of cooling time after removing the cause of occurrence.
2. 0: OFF, 1: ON
(Note 2) Alarm Code
CN1A-18 pin CN1A-19 pin
1
0
0
0
0
1
0
0
1
0
0
0
0
0
0
1
1
0
0
0
Name
0 Undervoltage
0 Board error 1
0 Memory error 1
0 Clock error
0 Memory error 2
0 Encoder error 1
0 Board error 2
0 Board error 3
0 Encoder error 2
Motor output ground
0
fault
1 Overspeed
0 Overcurrent
1 Overvoltage
Command pulse
1
frequency error
0 Parameter error
1 Overload 1
1 Overload 2
1 Error excessive
Seal communication
0
error
0 Watchdog
Overload warning
Servo forced stop
Main circuit off
warning
9 - 6
Alarm Deactivation
Press
"SET" on
Power
current
OFF ON
alarm
screen.
(Note 1) (Note 1)
(Note 1) (Note 1)
Removing the cause of occurrence
deactivates the alarm
automatically.
Alarm
reset
(RES)
signal
(Note 1)
(Note 1)