Mitsubishi Electric Melservo-J4 Instruction Manual page 23

Alarm Detail
No. Name No. Name
71 Load-side 71.6 Load-side
encoder encoder normal
normal communication
communication - Transmission
error 1 data error 2
71.7 Load-side
encoder normal
communication
- Transmission
data error 3
71.9 Load-side
encoder normal
communication
- Receive data
error 4
71.A Load-side
encoder normal
communication
- Receive data
error 5
72 Load-side 72.1 Load-side
encoder encoder data
normal error 1
communication
72.2 Load-side
error 2
encoder data
update error
72.3 Load-side
encoder data
waveform error
72.4 Load-side
encoder non-
signal error
72.5 Load-side
encoder
hardware error
1
72.6 Load-side
encoder
hardware error
2
72.9 Load-side
encoder data
error 2
74 Option card 74.1 Option card
error 1 error 1
74.2 Option card
error 2
74.3 Option card
error 3
74.4 Option card
error 4
74.5 Option card
error 5
75 Option card 75.3 Option card
error 2 connection error
75.4 Option card
disconnected
Stop Alarm deactivation
method
Alarm CPU Cycling
*2*3
reset reset the
power
EDB   
  
EDB
  
EDB
EDB   
  
EDB
EDB   
  
EDB
EDB   
  
EDB
EDB   
  
EDB
DB   
  
DB
DB   
  
DB
DB   
  
EDB
DB   
1 TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
Process Stop Alarm code
ing system
ACD3 ACD2
*9
system
(Bit 3) (Bit 2)
*9
Each axis Each 0 1
axis
Each axis Each
axis
Each axis Each
axis
Each axis Each
axis
Each axis Each 0 1
axis
Each axis Each
axis
Each axis Each
axis
Each axis Each
axis
Each axis Each
axis
Each axis Each
axis
Each axis Each
axis
   
   
   
   
   
   
   
*8
ACD1 ACD0
1
(Bit 1) (Bit 0)
1 0
1 0
 
 
 
 
 
 
 
21
1.2 Alarm list