Yaskawa SGDB - Manual (Page 516)

6.2 Troubleshooting
507
J A.30
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.30
Regenerative
error detection
ON ON OFF OFF
OFF: Output transistor is OFF
ON: Output transistor is ON
Status When Alarm Occurred
During servomotor
operation
Occurred when the con-
trol power turned ON
A
,
B D
Occurred approximate-
ly 1 second after the
main circuit power ON.
A, B, C
Cause Remedy
A Regenerative transistor is abnormal. Replace SERVOPACK.
B Disconnection of the regenerative resistor
unit.
Replace SERVOPACK or regenerative
resistor unit.
C Regenerative resistor unit disconnected
(for more than 6.0 kW).
Check wiring of the regenerative resistor
unit.
D SERVOPACK defective. Replace SERVOPACK.
6