Mitsubishi Electric Melservo-J4 MR-J4-DU*B4-RJ100 Series, Instruction Manual

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6 TROUBLESHOOTING
6.2 Troubleshooting for drive unit
20 Encoder normal communication
error 1 20.1 Encoder normal communication -
Receive data error 1 EDB
  
20.2 Encoder normal communication -
Receive data error 2 EDB   
20.3 Encoder normal communication -
Receive data error 3 EDB
  
20.5 Encoder normal communication -
Transmission data error 1 EDB
  
20.6 Encoder normal communication -
Transmission data error 2 EDB   
20.7 Encoder normal communication -
Transmission data error 3 EDB   
20.9 Encoder normal communication -
Receive data error 4 EDB
  
20.A Encoder normal communication -
Receive data error 5 EDB
  
21 Encoder normal communication
error 2 21.1 Encoder data error 1 EDB
  
21.2 Encoder data update error EDB   
21.3 Encoder data waveform error EDB
  
21.4 Encoder non-signal error EDB
  
21.5 Encoder hardware error 1 EDB   
21.6 Encoder hardware error 2 EDB   
21.9 Encoder data error 2 EDB
  
24 Main circuit error 24.1 Ground fault detected at hardware
detection circuit DB
  
24.2 Ground fault detected by software
detection function DB
  
25 Absolute position erased 25.1 Servo motor encoder - Absolute position
erased DB   
25.2 Scale measurement encoder - Absolute
position erased DB
  
27 Initial magnetic pole detection error 27.1 Initial magnetic pole detection - Abnormal
termination DB
  
27.2 Initial magnetic pole detection - Time out
error DB   
27.3 Initial magnetic pole detection - Limit
switch error DB   
27.4 Initial magnetic pole detection -
Estimated error DB
  
27.5 Initial magnetic pole detection - Position
deviation error DB
  
27.6 Initial magnetic pole detection - Speed
deviation error DB   
27.7 Initial magnetic pole detection - Current
error DB   
28 Linear encoder error 2 28.1 Linear encoder - Environment error EDB
  
2A Linear encoder error 1 2A.1 Linear encoder error 1-1 EDB
  
2A.2 Linear encoder error 1-2 EDB   
2A.3 Linear encoder error 1-3 EDB   
2A.4 Linear encoder error 1-4 EDB
  
2A.5 Linear encoder error 1-5 EDB
  
2A.6 Linear encoder error 1-6 EDB   
2A.7 Linear encoder error 1-7 EDB   
2A.8 Linear encoder error 1-8 EDB
  
2B Encoder counter error 2B.1 Encoder counter error 1 EDB
  
2B.2 Encoder counter error 2 EDB   
Alarm Details Stop
method
*2
*3
Alarm deactivation
No. Name No. Name Alarm
reset CPU
reset Power
cycling