YASKAWA SGDV series User Manual page 316

Alarm Number:
Alarm Name
(Alarm Description)
A feedback option module fault
A.E75:
occurred.
Unsupported
Feedback Option
A unsupported feedback option
Module
module was connected.
A.E80:
Command Option The command option module was
Module Unmatched replaced with a different model.
Error
The timing of synchronization
between the servomotor and
command option module changed
due to change in the communica-
tions cycle of the host controller
connected to the command option
A.EA2:
module.
DRV Alarm 2
(SERVOPACK WDC
The connection between the
error)
SERVOPACK and the command
option module is faulty.
A command option module fault
occurred.
A SERVOPACK fault occurred.
The lag between activations of
A.Eb1:
the input signals /HWBB1 and
Safety Function Signal
/HWBB2 for the HWBB function
Input Timing Error
is ten second or more.
Processing of the sensor ON
command from the command
A.ED1:
option module is not completed.
Command Option
Module IF Command
Processing of the sensor ON
Timeout Error
command from the command
option module is not completed.
The three-phase power supply
A.F10: wiring is incorrect.
Main Circuit Cable
The three-phase power supply is
Open Phase
unbalanced.
(With the main circuit
The connection of the I/O signals
power supply ON, volt-
(CN901) between the SERVO-
age was low for more
PACK and converter is faulty.
than 1 second in an R, S,
or T phase.)
(Detected when the main
A fault occurred in the SERVO-
power supply was turned
PACK or converter.
ON.)
The contactor is faulty in the
dynamic brake circuit.
Incorrect wiring of the dynamic
A.F30:
brake answer signal.
Dynamic Brake
Contactor Error
A fault occurred in the SERVO-
PACK.
Cause Investigative Actions
−
Refer to the catalog of the con-
nected feedback option module or
the manual of the SERVOPACK.
–
–
Check the connection between the
SERVOPACK and the command
option module.
−
−
Measure the time lag between the /
HWBB1 and
/HWBB2 signals.
−
−
Check the power supply wiring.
Measure the voltage at each phase
of the three-phase power supply.
Check the connection of CN901.
−
Check the contacts to see if they are
welded or not.
Check the wiring of the dynamic
brake answer signal.
−
9.1 Alarm Displays
(cont'd)
Corrective Actions
Replace the feedback option mod-
ule.
Connect a compatible feedback
option module.
Execute Fn014 (Resetting configu-
ration error of option module) with
the digital operator or SigmaWin+
and turn the power supply OFF and
then ON again.
Turn the power supply OFF and
then ON again. If the alarm occurs
again, restart communications
processing from the host controller.
Correctly connect the command
option module.
Replace the command option mod-
ule.
Replace the SERVOPACK.
The output signal circuits or devices
for /HWBB1 and
/HWBB2 or the SERVOPACK
input signal circuits may be faulty.
Alternatively, the input signal
cables may be disconnected. Check
if any of these items are faulty or
have been disconnected.
Input a servo ON command when
the motor is stopped.
Check that the encoder is connected
correctly and input a sensor ON
command when the motor is
stopped.
Confirm that the power supply is
correctly wired.
Balance the power supply by chang-
ing phases.
Correctly connect CN901.
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.
The contactor may be faulty.
Replace the contactor.
Correctly wire the dynamic brake
answer signal.
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
9
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