YASKAWA Sigma-V Series User Manual page 377

Alarm Number:
Alarm Name
(Alarm Description)
The three-phase power supply
A.F10: wiring is incorrect.
Main Circuit Cable
The three-phase power supply is
Open Phase
unbalanced.
(With the main circuit
The connection of the I/O signals
power supply ON, volt-
(CN901) between the SERVO-
age was low for more
PACK and converter is faulty.
than 1 second in an R, S,
or T phase.)
(Detected when the main
A fault occurred in the SERVO-
power supply was turned
PACK or converter.
ON.)
The contactor is faulty in the
dynamic brake circuit.
Incorrect wiring of the dynamic
A.F30:
brake answer signal.
Dynamic Brake
Contactor Error
A fault occurred in the SERVO-
PACK.
*2
FL-1 :
System Alarm
A fault occurred in the SERVO-
PACK.
*2
FL-2 :
System Alarm
The contact between the digital
operator and the SERVOPACK is
CPF00:
faulty.
Digital Operator
Transmission Error 1
Malfunction caused by noise
interference.
A digital operator fault occurred. −
CPF01:
Digital Operator
Transmission Error 2
A fault occurred in the SERVO-
PACK.
∗2. These alarms are not stored in the alarm history and are displayed only in the panel display.
Cause Investigative Actions
Check the power supply wiring.
Measure the voltage at each phase
of the three-phase power supply.
Check the connection of CN901.
−
Check the contacts to see if they are
welded or not.
Check the wiring of the dynamic
brake answer signal.
−
−
Check the connector contact.
−
−
10.1 Alarm Displays
(cont'd)
Corrective Actions
Confirm that the power supply is
correctly wired.
Balance the power supply by chang-
ing phases.
Correctly connect CN901.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK or con-
verter may be faulty. Replace the
SERVOPACK or converter.
The contactor may be faulty.
Replace the contactor.
Correctly wire the dynamic brake
answer signal.
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.
Insert securely the connector or
replace the cable.
Keep the digital operator or the
cable away from noise sources.
Disconnect the digital operator and
then re-connect it. If the alarm still
occurs, the digital operator may be
faulty. Replace the digital operator.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
10
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