Yaskawa MP940 - Manual (Page 384)

10.2 Troubleshooting
10-17
10
„ A.84
A.84: Absolute Encoder Data Error
Display and Outputs
Note: OFF: Output transistor is OFF (alarm state).
Status and Remedy for Alarm
„ A.85
A.85: Absolute Encoder Overspeed
Display and Outputs
Note: OFF: Output transistor is OFF (alarm state).
Alarm Outputs
Alarm Code Outputs
ALM Output
ALO1 ALO2 ALO3
OFF OFF OFF OFF
Cause Remedy
A Absolute encoder misoperation. Replace the servomotor is the problem
occurs often.
B Circuit board (1PWB) defective. Replace SERVOPACK.
Alarm Outputs
Alarm Code Outputs
ALM Output
ALO1 ALO2 ALO3
OFF OFF OFF OFF
Pn002.2 = 1
A
B Pn002.2 = 1
A
B
At power ON
Pn002.2 = 0 or 2
During operation
Pn002.2 = 0 or 2