YASKAWA UAK series User Manual page 279

Alarm:
Alarm Name
A.B31:
Current Detection The current detection circuit for
Error 1 phase U is faulty.
(Phase-U)
A.B32:
Current Detection The current detection circuit for
Error 2 phase V is faulty.
(Phase-V)
The detection circuit for the cur-
A.B33:
rent is faulty.
Current Detection
Error 3
(Current detector)
The servomotor main circuit
cable is disconnected.
The gate drive signal output cir-
A.B4A:
cuit of power transistor of the
Converter Gate Drive
power regeneration converter has
Output Error
failed.
A.BDA:
Converter CPU: AD
Conversion Circuit
Error Power regeneration converter
failure
(An error occurred in the
A/D conversion circuit
inside the power regen-
eration converter.)
A.BDC:
Converter Reference
Voltage Error 2
Power regeneration converter
(An error occurred in the
failure
reference voltage output
inside the power
regeneration converter.)
A.BDD:
Power regeneration converter
Converter System
failure
Error 0
A.BEA:
Power regeneration converter
Converter System
failure
Error 1
A.BEB:
Power regeneration converter
Converter System
failure
Error 2
A.BF0:
SERVOPACK failure
System Alarm 0
A.BF1:
SERVOPACK failure
System Alarm 1
A.BF2:
SERVOPACK failure
System Alarm 2
A.BF3:
SERVOPACK failure
System Alarm 3
Cause Investigative Actions
−
−
−
Check for disconnection of the
motor main circuit cable.
−
−
−
−
−
−
−
−
−
−
11.2 Alarm Displays
(cont'd)
Corrective Actions
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
Correct the servomotor wiring.
The power regeneration converter
may be faulty. Replace the power
regeneration converter.
The power regeneration converter
may be faulty. Replace the power
regeneration converter.
The power regeneration converter
may be faulty. Replace the power
regeneration converter.
The power regeneration converter
may be faulty. Replace the power
regeneration converter.
The power regeneration converter
may be faulty. Replace the power
regeneration converter.
The power regeneration converter
may be faulty. Replace the power
regeneration converter.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
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