Yaskawa SGDB - Manual (Page 515)

INSPECTION, MAINTENANCE, AND TROUBLESHOOTING
6.2.1 Troubleshooting Problems with Alarm Display cont.
506
J A.10
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.10
Overcurrent
ON OFF OFF OFF
OFF: Output transistor is OFF
ON: Output transistor is ON
Status When Alarm Occurred
During servomotor
operation
When servo ON (/S-ON)
signal turned ON
A
,
B
, D C,
D
At power ON
C
Cause Remedy
A Wiring grounded between SERVOPACK
and servomotor.
Check and correct wiring.
B Servomotor U, V, or W phase grounded. Replace servomotor.
C • Circuit board (1PWB) defective
• Power transistor defective Replace SERVOPACK.
D Current feedback circuit, power transistor,
DB circuit, or circuit board defective.
Replace SERVOPACK.
6