YASKAWA Σ-V Series User Manual page 259

8 Troubleshooting
8.1.2 Troubleshooting of Alarms
Alarm:
Alarm Name
A.b33:
Current Detection
Error 3
(Current detector)
A.bF0:
System Alarm 0
A.bF1:
System Alarm 1
A.bF2:
System Alarm 2
:
A.bF3
System Alarm 3
A.bF4:
System Alarm 4
A.C10:
Servo Overrun
Detected
(Detected when the ser-
vomotor power is ON.)
A.C20:
Phase Detection Error
A.C21:
Hall Sensor Error
8-14
Cause
The detection circuit for the cur-
rent is faulty.
The linear servomotor main cir-
cuit cable is disconnected.
A SERVOPACK fault occurred.
A SERVOPACK fault occurred.
A SERVOPACK fault occurred.
A SERVOPACK fault occurred.
A SERVOPACK fault occurred.
The order of phases U, V, and W
in the linear servomotor wiring is
incorrect.
The setting of the motor phase
selection (Pn080.1) is incorrect.
A linear scale fault occurred.
A SERVOPACK fault occurred.
The linear scale signal is weak.
The count-up direction of the lin-
ear scale does not match the for-
ward direction of the motor
moving coil.
The hall sensor signal is affected
by noise.
The hall sensor is protruding
from the motor magnetic way.
The setting of the linear scale
pitch (Pn282) is incorrect.
The hall sensor wiring is incor-
rect.
A hall sensor fault occurred.
Investigative Actions
−
Check for disconnection of the lin-
ear servomotor main circuit cable.
−
−
−
−
−
Check the linear servomotor wiring.
Check the setting of Pn080.1.
−
−
Check the voltage of the linear scale
signal.
Check the setting of Pn080.1
(Motor Phase Selection).
Check the installation directions for
the linear scale and motor moving
coil.
−
Check the hall sensor.
Check the setting of the linear scale
pitch (Pn282).
Check the hall sensor wiring.
−
Corrective Actions
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
Correct the linear servomotor wir-
ing.
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.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
Confirm that the linear servomotor
is correctly wired.
Correct the setting of Pn080.1.
If the alarm still occurs after turning
the power OFF and then ON again,
even though the linear servomotor
is correctly wired, the linear servo-
motor may be faulty. Replace the
linear servomotor.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
Fine-adjust the installation status of
the linear scale head, or replace the
linear scale.
Change the setting of Pn080.1
(Motor Phase Selection).
Correctly reinstall the linear scale
and motor moving coil.
Correct the FG wiring and take
measures against noise for the hall
sensor wiring.
Correctly reinstall the motor mov-
ing coil or motor magnetic way.
Correct the value of Pn282.
Correct the hall sensor wiring.
Replace the hall sensor.