YASKAWA SGD7S-xxxDA0 series Product Manual page 535

Alarm Code:
Possible Cause
Alarm Name
bF6h:
A failure occurred in
the SERVOPACK.
System Alarm 6
bF7h: A failure occurred in
the SERVOPACK.
System Alarm 7
bF8h:
A failure occurred in
the SERVOPACK.
System Alarm 8
The order of phases
U, V, and W in the
motor wiring is not
correct.
There is an error in the
setting of Pn080
(2080h) = n.X
(Motor Phase Selec-
tion).
C10h:
Servomotor Out
of Control
(Detected when
A failure occurred in
the servo is
the encoder.
turned ON.)
A failure occurred in
the SERVOPACK.
The linear encoder
signal level is too low.
The count-up direc-
tion of the linear
encoder does not
match the forward
C20h:
direction of the Mov-
Phase Detection
ing Coil in the motor.
Error
The polarity sensor
signal is being
affected by noise.
The setting of Pn282
(2282h) (Linear
Encoder Scale Pitch)
is not correct.
Confirmation
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
–
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
–
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
–
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
Check the Servomotor Make sure that the Servo-
wiring. motor is correctly wired.
Check the setting of Set Pn080 (2080h) =
Pn080 (2080h) = n.X to an appropri-
n.X. ate value.
If the motor wiring is cor-
rect and an alarm still
occurs after turning the
power supply OFF and
–
ON again, the Servomotor
or linear encoder may be
faulty. Replace the Servo-
motor or linear encoder.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
–
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
Fine-tune the mounting of
Check the voltage of
the scale head. Or,
the linear encoder sig-
replace the linear
nal.
encoder.
Check the setting of
Pn080 (2080h) = Change the setting of
n.X (Motor Phase Pn080 (2080h) =
Sequence Selection). n.X.
Check the installation Correctly reinstall the lin-
orientation for the linear ear encoder or Moving
encoder and Moving Coil.
Coil.
Correct the FG wiring.
Implement countermea-
–
sures against noise for the
polarity sensor wiring.
Check the setting of Check the specifications
Pn282 (2282h) (Linear of the linear encoder and
Encoder Scale Pitch). set a correct value.
16.2 Alarm Displays
16.2.2 Troubleshooting Alarms
Continued from previous page.
Correction Reference
–
–
–
–
page 6-20
–
–
–
page 6-20
–
page 6-15
Continued on next page.
16
16-29