Mitsubishi Electric MELSERVO MRJ2S-B, Instruction Manual

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Alarms and Warnings Troubleshooting
MELSERVO J2-Super 9 - 1
9 Troubleshooting
9.1 Alarms and Warnings
9.1.1 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 9.1.2 or section 9.1.3 and take the appropriate
action.
Display Meaning
Alarm deactivation
Power
OFF ON
RESET
command
CPU reset
Alar
ms
10 Undervoltage
✓ ✓ ✓
12 Memory error 1
✓
— —
13 Clock error
✓
— —
15 Memory error 2
✓
— —
16 Encoder error 1
✓
— —
17 Board error
✓
— —
19 Memory error 2
✓
— —
1A Motor combination error
✓
— —
20 Encoder error 2
✓
— —
24 Main ciruit error
✓ ✓ ✓
25 Absolute position erase
✓
— —
30 Regenerative error
✓ ✓ ✓
31 Overspeed
✓ ✓ ✓
32 Overcurrent
✓ ✓ ✓
33 Overvoltage
✓ ✓ ✓
34 CRC error
✓ ✓ ✓
35 Command frequency error
✓ ✓ ✓
36 Transfer error
✓ ✓ ✓
37 Parameter error
✓
—
✓
45 Main circuit device overheat
✓ ✓ ✓
46 Servo motor overheat
✓ ✓ ✓
50 Overload 1
✓ ✓ ✓
51 Overload 2
✓ ✓ ✓
52 Error excessive
✓ ✓ ✓
8E Serial communication error
✓ ✓ ✓
88 Watchdog
✓
— —
Tab. 9-1: Alarm and warning overview (1)