YASKAWA MECHATROLINK Sigma 2 Series - Page 183

9 Troubleshooting
9-8
 A.85
A.85: Encoder Overspeed
Display and Outputs
Note: OFF: Output transistor is OFF (alarm state).
Status and Remedy for Alarm
 A.86
A.86: Encoder Overheated
Display and Outputs
Note: OFF: Output transistor is OFF (alarm state).
Status and Remedy for Alarm
Alarm Outputs
Alarm Code Outputs ALM Output
ALO1 ALO2 ALO3
OFF OFF OFF OFF
Cause Remedy
A Absolute encoder turned ON at a speed
exceeding 200 min
-1
.
Turn ON power supply again with the
servomotor stopped.
B Circuit board (1PWB) is defective. Replace the SERVOPACK.
Alarm Outputs
Alarm Code Outputs ALM Output
ALO1 ALO2 ALO3
OFF OFF OFF OFF
Cause Remedy
A The ambient temperature of the servomo-
tor is high.
Alter conditions so that the ambient tempera-
ture goes below 40°C.
B Servomotor is operating under overload. Reduce load.
C Circuit board (1PWB) is defective. Replace the SERVOPACK.
D Encoder is defective. Replace the servomotor.
At power ON
A, B
At SENS_ON
command
C, D
During servomotor
operation
A, B
At power ON
C, D