YASKAWA E-V Series User Manual page 307

9 Troubleshooting
9.1.2 Troubleshooting of Alarms
Alarm:
Alarm Name
A.b10:
Speed Reference A/D
Error
(Detected when the
servo is ON.)
A.b11:
Speed Reference A/D
Data Error
A.b20:
Reference Force
Input Read Error
(Detected when the
servo is ON.)
A.b31:
Current Detection
Error 1
(Phase-U)
A.b32:
Current Detection
Error 2
(Phase-V)
A.b33:
Current Detection
Error 3
(Current detector)
A.bF0:
System Alarm 0
(Scan C error)
A.bF1:
System Alarm 1
A.bF2:
System Alarm 2
9-14
Cause
A malfunction occurred in the
speed reference input section.
A SERVOPACK fault occurred.
A malfunction occurred in the
detection section of the speed ref-
erence A/D conversion data. (Not
an alarm.)
A malfunction occurred in the
speed reference input section.
A SERVOPACK fault occurred.
A malfunction occurred in the
reading section of the force refer-
ence input.
A SERVOPACK fault occurred.
The current detection circuit for
phase U is faulty.
The current detection circuit for
phase V is faulty.
The detection circuit for the cur-
rent is faulty.
The servomotor main circuit
cable is disconnected.
A SERVOPACK fault occurred.
A SERVOPACK fault occurred.
A SERVOPACK fault occurred.
Investigative Actions
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−
−
−
−
−
−
−
−
−
Check for disconnection of the
motor main circuit cable.
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−
−
Corrective Actions
Clear and reset the alarm and restart
the operation.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Repair or replace the SER-
VOPACK.
Clear and reset the alarm and restart
the operation.
Clear and reset the alarm and restart
the operation.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Repair or replace the SER-
VOPACK.
Clear and reset the alarm and restart
the operation.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Repair or replace the SER-
VOPACK.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Repair or replace the SER-
VOPACK.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Repair or replace the SER-
VOPACK.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Repair or replace the SER-
VOPACK.
Correct the servomotor wiring.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Repair or replace the SER-
VOPACK.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Repair or replace the SER-
VOPACK.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Repair or replace the SER-
VOPACK.