Troubleshooting; Alarms And Warning List - Mitsubishi Electric Melservo MR-J3-A Instruction Manual

9. TROUBLESHOOTING

9. TROUBLESHOOTING
If an alarm/warning has occurred, refer to this chapter and remove its cause.

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. When an alarm occurs, ALM turns off.
Set " 1" in parameter No.PD24 to output the alarm code is outputted by ON/OFF of bit0 to bit2. 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 alarm code is not output.
After its cause has been removed, the alarm can be deactivated in any of the methods marked
deactivation column.
(Note 2)
Alarm code
Display CN1 CN1 CN1
22 23
(bit2) (bit1) (bit0)
AL.10 0 1
AL.12 0 0
AL.13 0 0
AL.15 0 0
AL.16 1 1
AL.17 0 0
AL.19 0 0
AL.1A 1 1
AL.20 1 1
AL.24 1 0
AL.25 1 1
AL.30 0 0
AL.31 1 0
AL.32 1 0
AL.33 0 0
AL.35 1 0
AL.37 0 0
AL.45 0 1
AL.46 0 1
AL.47 0 1
AL.50 0 1
AL.51 0 1
AL.52 1 0
AL.8A 0 0
AL.8E 0 0
88888
Note 1. Deactivate the alarm about 30 minutes of cooling time after removing the cause of occurrence.
2. 0: off
1: on
POINT
As soon as an alarm occurs, turn off Servo-on (SON) and power off.
Name
24
Undervoltage
0
Memory error1 (RAM)
0
Clock error
0
Memory error2 (EEP-ROM)
0
Encoder error1
0
(At power on)
Board error
0
Memory error3
0
(Flash-ROM)
Motor combination error
0
Encoder error2
0
Main circuit error
0
Absolute position erase
0
Regenerative error
1
Overspeed
1
0 Overcurrent
Overvoltage
1
Command pulse frequency
1
alarm
0 Parameter error
Main circuit device overheat
1
Servo motor overheat
1
Cooling fan alarm
1
Overload1
1
1 Overload2
Error excessive
1
Serial communication time-
0
out
Serial communication error
0
Watchdog
Alarm deactivation
Press
Power "SET" on Alarm
OFF ON current reset
alarm (RES)
screen.
(Note 1) (Note 1) (Note 1)
(Note 1) (Note 1) (Note 1)
(Note 1) (Note 1) (Note 1)
(Note 1) (Note 1) (Note 1)
(Note 1) (Note 1) (Note 1)
9 - 1
in the alarm
Display Name
Open battery cable
AL.92
warning
Home position setting
AL.96
error
AL.99 Stoke limit warning
AL.9F Battery warning
Excessive regeneration
AL.E0
warning
AL.E1 Overload warning 1
Absolute position counter
AL.E3
warning
AL.E5 ABS time-out warning
Servo emergency stop
AL.E6
warning
Cooling fan speed
AL.E8
reduction warning
AL.E9 Main circuit off warning
AL.EA ABS servo on warning
AL.EC Overload warning 2
Output watt excess
AL.ED
warning