Mitsubishi Electric Melservo-J4 MR-J4-DU*B4-RJ100 Series Instruction Manual page 51

Alarm
No. Name
66 Encoder initial communication error
(safety observation function)
67 Encoder normal communication
error 1 (safety observation function)
68 STO diagnosis error
69 Command error
Details
No. Name
66.1 Encoder initial communication - Receive
data error 1 (safety observation function)
66.2 Encoder initial communication - Receive
data error 2 (safety observation function)
66.3 Encoder initial communication - Receive
data error 3 (safety observation function)
66.7 Encoder initial communication -
Transmission data error 1 (safety
observation function)
66.9 Encoder initial communication - Process
error 1 (safety observation function)
67.1 Encoder normal communication -
Receive data error 1 (safety observation
function)
67.2 Encoder normal communication -
Receive data error 2 (safety observation
function)
67.3 Encoder normal communication -
Receive data error 3 (safety observation
function)
67.4 Encoder normal communication -
Receive data error 4 (safety observation
function)
67.7 Encoder normal communication -
Transmission data error 1 (safety
observation function)
68.1 Mismatched STO signal error
69.1 Forward rotation-side software limit
detection - Command excess error
69.2 Reverse rotation-side software limit
detection - Command excess error
69.3 Forward rotation stroke end detection -
Command excess error
69.4 Reverse rotation stroke end detection -
Command excess error
69.5 Upper stroke limit detection - Command
excess error
69.6 Lower stroke limit detection - Command
excess error
Stop Alarm deactivation
*2
method
Alarm CPU
*3
reset reset
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DB
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DB
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DB
DB  
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DB
DB  
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DB
DB  
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DB
SD  
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SD
SD  
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SD
SD  
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SD
6 TROUBLESHOOTING
6.2 Troubleshooting for drive unit
Power
cycling
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6
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