Yaskawa SGDB - Manual (Page 528)

6.2 Troubleshooting
519
J A.b1
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.b1
Reference input
read error
OFF OFF OFF OFF
OFF: Output transistor is OFF
ON: Output transistor is ON
Status When Alarm Occurred
A
,
B
During servomotor
operation
At power ON
C
Cause Remedy
A Part malfunctioned in reference read-in unit
(A/D converter, etc.).
Reset alarm and restart operation.
B Part defective in reference read-in unit
(A/D converter, etc.).
Replace SERVOPACK.
C Circuit board (1PWB) defective Replace SERVOPACK.
6