YASKAWA SGDV-180A - Page 11

Replace the SERVOPACK.
A.8A0
External
Encoder
Error
Setting the zero point
position of external absolute
encoder failed because the
servomotor rotated.
Before setting the zero
point position, use the
fully-closed feedback
pulse counter (Un00E)
to confirm that the
servomotor is not
rotating.
The servomotor must be stopped
while setting the zero point position.
An external encoder fault
occurred.
--
Replace the external encoder.
A.8A1
External
Encoder
Error of
Module
An external encoder fault
occurred.
--
Replace the external encoder.
A serial converter unit fault
occurred.
--
Replace the serial converter unit.
A.8A
External
Encoder
Error of
Sensor
(Incremental)
An external encoder fault
occurred.
--
Replace the external encoder.
A.8A3
External
Encoder
Error of
Position
(Absolute)
An external absolute
encoder fault occurred.
--
The external absolute encoder may
be faulty. Refer to the encoder
manufacturer's instruction manual
for corrective actions.
A.8A5
External
Encoder
Overspeed
The overspeed from the
external encoder occurred.
Check the maximum
speed of the external
encoder.
Keep the external encoder below its
maximum speed.
A.8A6
External
Encoder
Overheated
The overheat from the
external encoder occurred.
--
Repair or replace the external
encoder.
A.b10
Speed
Reference
A/D Error
(Detected
when the
servo is
ON.)
A malfunction occurred in
the speed reference input
section.
--
Clear and reset the alarm and
restart the operation.
A SERVOPACK fault
occurred.
--
Turn the power supply OFF and then
ON again. If the alarm still occurs,
the SERVOPACK may be faulty.
Replace the SERVOPACK.
A.b11
Speed
Reference
A/D Data
Error
A malfunction occurred in
the speed reference input
section.
--
Clear and reset the alarm and
restart the operation.
A SERVOPACK fault
occurred.
--
Turn the power supply OFF and then
ON again. If the alarm still occurs,
the SERVOPACK may be faulty.
Replace the SERVOPACK.
A.b20
Reference
Torque
Input Read
Error
(Detected
when the
servo is
ON.)
A malfunction occurred in
the reading section of the
torque reference input.
--
Clear and reset the alarm and
restart the operation.
A SERVOPACK fault
occurred.
--
Turn the power supply OFF and then
ON again. If the alarm still occurs,
the SERVOPACK may be faulty.
Replace the SERVOPACK.
A.b31
Current
Detection
Error 1
The current detection circuit
for phase U is faulty.
--
Turn the power supply OFF and then
ON again. If the alarm still occurs,
the SERVOPACK may be faulty.
Replace the SERVOPACK.
A.b32
Current
Detection
Error 2
The current detection circuit
for phase V is faulty.
--
Turn the power supply OFF and then
ON again. If the alarm still occurs,
the SERVOPACK may be faulty.
Replace the SERVOPACK.