Mitsubishi Electric MELSERVO-J4 Instruction Manual page 16

1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
No. Name
Load-side encoder
initial
70
communication
error 1
Load-side encoder
normal
71
communication
error 1
Detail
Detail name
No.
Load-side encoder initial
70.1 communication - Receive data
error 1
Load-side encoder initial
70.2 communication - Receive data
error 2
Load-side encoder initial
70.3 communication - Receive data
error 3
Load-side encoder initial
70.5 communication - Transmission
data error 1
Load-side encoder initial
70.6 communication - Transmission
data error 2
Load-side encoder initial
70.7 communication - Transmission
data error 3
Load-side encoder initial
70.A communication - Process error
1
Load-side encoder initial
70.B communication - Process error
2
Load-side encoder initial
70.C communication - Process error
3
Load-side encoder initial
70.D communication - Process error
4
Load-side encoder initial
70.E communication - Process error
5
Load-side encoder initial
70.F communication - Process error
6
Load-side encoder normal
71.1 communication - Receive data
error 1
Load-side encoder normal
71.2 communication - Receive data
error 2
Load-side encoder normal
71.3 communication - Receive data
error 3
Load-side encoder normal
71.5 communication - Transmission
data error 1
Load-side encoder normal
71.6 communication - Transmission
data error 2
Load-side encoder normal
71.7 communication - Transmission
data error 3
Load-side encoder normal
71.9 communication - Receive data
error 4
Load-side encoder normal
71.A communication - Receive data
error 5
Stop Alarm deactivation
method
Cycling
Alarm CPU
(Note
the
reset reset
2, 3)
power
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
DB
EDB
EDB
EDB
EDB
EDB
EDB
EDB
EDB
1 - 9
Alarm code (Note 8)
Process-
Stop
ing
system
ACD3 ACD2
system
(Note 9)
(Bit 3) (Bit 2)
(Note 9)
Each Each
axis axis
Each Each
axis axis
Each Each
axis axis
Each Each
axis axis
Each Each
axis axis
Each Each
axis axis
0 1
Each Each
axis axis
Each Each
axis axis
Each Each
axis axis
Each Each
axis axis
Each Each
axis axis
Each Each
axis axis
Each Each
axis axis
Each Each
axis axis
Each Each
axis axis
Each Each
axis axis
0 1
Each Each
axis axis
Each Each
axis axis
Each Each
axis axis
Each Each
axis axis
ACD1 ACD0
(Bit 1) (Bit 0)
1 0
1 0