YASKAWA SGD7S Product Manual page 446

12.2 Alarm Displays
12.2.2 Troubleshooting Alarms
Alarm Number:
Alarm Name
A.F10:
Power Supply
Line Open Phase
(The voltage was
low for more than
one second for
phase R, S, or T
when the main
power supply
was ON.)
A.F50:
Servomotor Main
Circuit Cable Dis-
connection
(The Servomotor
did not operate or
power was not
supplied to the
Servomotor even
though the
SV_ON (Servo
ON) command
was input when
the Servomotor
was ready to
receive it.)
*4
FL-1 :
System Alarm
*4
FL-2 :
System Alarm
*4
FL-3 :
System Alarm
*4
FL-4 :
System Alarm
*4
FL-5 :
System Alarm
*4
FL-6 :
System Alarm
CPF00:
Digital Operator
Communications
Error 1
12-40
Possible Cause
The three-phase
Check the power sup-
power supply wiring is
ply wiring.
not correct.
Measure the voltage for
The three-phase
each phase of the
power supply is
three-phase power sup-
unbalanced.
ply.
A single-phase power
supply was input with-
Check the power sup-
out specifying a sig-
ply and the parameter
nal-phase AC power
setting.
supply input (Pn00B =
n.1).
A failure occurred in
–
the SERVOPACK.
A failure occurred in
–
the SERVOPACK.
The wiring is not cor-
rect or there is a faulty
Check the wiring.
contact in the motor
wiring.
A failure occurred in
–
the SERVOPACK.
There is a faulty con-
tact between the Digi- Check the connector
tal Operator and the contact.
SERVOPACK.
A malfunction was
–
caused by noise.
Confirmation
Make sure that the power
supply is correctly wired.
Balance the power sup-
ply by changing phases.
Match the parameter set-
ting to the power supply.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
The SERVOPACK may be
faulty. Replace the SER-
VOPACK.
Make sure that the Servo-
motor is correctly wired.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
Disconnect the connec-
tor and insert it again. Or,
replace the cable.
Keep the Digital Operator
or the cable away from
sources of noise.
Continued from previous page.
Correction Reference
page 4-12
–
page 4-12
–
–
page 4-26
–
–
–
Continued on next page.