Mitsubishi Electric MELSERVO-J4 Instruction Manual Trouble Shooting page 11

1. TROUBLESHOOTING
No.
71 Load-side encoder normal
communication error 1
72 Load-side encoder normal
communication error 2
74 Option card error 1
75 Option card error 2
82 Master-slave operation error 1
8A USB communication time-out
error/Serial communication time-
out error
8D CC-Link IE communication error
8E USB communication error/Serial
communication error
888/ Watchdog
88888
Note. This alarm will occur only in the J3 compatibility mode.
Name Detail No.
71.1
71.2
71.3
71.5
71.6
71.7
71.9
71.A
72.1
72.2
72.3
72.4
72.5
72.6
72.9
74.1
74.2
74.3
74.4
74.5
75.3
75.4
82.1
8A.1
8D.1
8D.2
8D.3
8D.5
8D.6
8D.7
8D.8
8D.9
8D.A
8E.1
8E.2
8E.3
8E.4
8E.5
88._/
8888._
Load-side encoder communication - Receive data error 1
Load-side encoder communication - Receive data error 2
Load-side encoder communication - Receive data error 3
Load-side encoder communication - Transmission data error 1
Load-side encoder communication - Transmission data error 2
Load-side encoder communication - Transmission data error 3
Load-side encoder communication - Transmission data error 4
Load-side encoder communication - Transmission data error 5
Load-side encoder data error 1
Load-side encoder data update error
Load-side encoder data waveform error
Load-side encoder non-signal error
Load-side encoder hardware error 1
Load-side encoder hardware error 2
Load-side encoder data error 2
Option card error 1
Option card error 2
Option card error 3
Option card error 4
Option card error 5
Option card connection error
Option card disconnected
Master-slave operation error 1
USB communication time-out error/Serial communication time-out error
CC-Link IE communication error 1
CC-Link IE communication error 2
Master station setting error 1
Master station setting error 2
CC-Link IE communication error 3
CC-Link IE communication error 4
CC-Link IE communication error 5
Synchronization error 1
Synchronization error 2
USB communication receive error/Serial communication receive error
USB communication checksum error/Serial communication checksum
error
USB communication character error/Serial communication character
error
USB communication command error/Serial communication command
error
USB communication data number error/Serial communication data
number error
Watchdog
1 - 4
Detail name