Yaskawa Sigma-5 Large Capacity Users Manual: Design and Maintenance-Rotary Motors-Analog Voltage and Pulse Train Reference - Manual (Page 377)

10.1 Alarm Displays
10-21
10
Trou
blesh
ooting
A.F10:
Main Circuit Cable
Open Phase
(With the main circuit
power supply ON, volt-
age was low for more
than 1 second in an R, S,
or T phase.)
(Detected when the main
power supply was turned
ON.)
The three-phase power supply
wiring is incorrect.
Check the power supply wiring.
Confirm that the power supply is
correctly wired.
The three-phase power supply is
unbalanced.
Measure the voltage at each phase
of the three-phase power supply.
Balance the power supply by chang-
ing phases.
The connection of the I/O signals
(CN901) between the SERVO-
PACK and converter is faulty.
Check the connection of CN901. Correctly connect CN901.
A fault occurred in the SERVO-
PACK or converter.
−
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.
A.F30:
Dynamic Brake
Contactor Error
The contactor is faulty in the
dynamic brake circuit. Check the contacts to see if they are
welded or not. The contactor may be faulty.
Replace the contactor.
Incorrect wiring of the dynamic
brake answer signal. Check the wiring of the dynamic
brake answer signal. Correctly wire the dynamic brake
answer signal.
A fault occurred in the SERVO-
PACK.
−
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
FL-1 *2 :
System Alarm
A fault occurred in the SERVO-
PACK.
−
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
FL-2 *2 :
System Alarm
CPF00:
Digital Operator
Transmission Error 1
The contact between the digital
operator and the SERVOPACK is
faulty.
Check the connector contact.
Insert securely the connector or
replace the cable.
Malfunction caused by noise
interference.
−
Keep the digital operator or the
cable away from noise sources.
CPF01:
Digital Operator
Transmission Error 2
A digital operator fault occurred. −
Disconnect the digital operator and
then re-connect it. If the alarm still
occurs, the digital operator may be
faulty. Replace the digital operator.
A fault occurred in the SERVO-
PACK.
−
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
∗2. These alarms are not stored in the alarm history and are displayed only in the panel display.
(cont’d)
Alarm Number:
Alarm Name
(Alarm Description)
Cause Investigative Actions Corrective Actions