Yaskawa SGDB - Manual (Page 526)

6.2 Troubleshooting
517
J A.85
Display and Outputs
Digital Operator
Di l d
Alarm Output g p
Display and
Alarm Name
Alarm Code Output Alarm Output
Alarm Name
ALO1 ALO2 ALO3
p
A.85
Absolute encoder
overspeed (only
when absolute
encoder is used)
OFF OFF OFF OFF
OFF: Output transistor is OFF
ON: Output transistor is ON
Status When Alarm Occurred
B
At power ON
Cn-01 Bit 1 = 0
Cn-01 Bit 1 = 1
When SEN signal turned
ON, Cn-01 Bit 1 = 0
A
A
Cause Remedy
A Absolute encoder turned ON at a speed
exceeding 400 min −1 .
• For speed control (at Cn-01 Bit 1 = 1) and
for position control, turn SERVOPACK
power OFF then back ON.
• Replace servomotor if error occurs fre-
quently.
B Circuit board (1PWB) defective Replace SERVOPACK.
6