Yaskawa Sigma-5 Large Capacity Users Manual: Design and Maintenance-Command Option Interface - Manual (Page 316)

9.1 Alarm Displays
9-21
9
Trou
blesh
ooting
A.E75:
Unsupported
Feedback Option
Module
A feedback option module fault
occurred.
−
Replace the feedback option mod-
ule.
A unsupported feedback option
module was connected.
Refer to the catalog of the con-
nected feedback option module or
the manual of the SERVOPACK.
Connect a compatible feedback
option module.
A.E80:
Command Option
Module Unmatched
Error
The command option module was
replaced with a different model.
–
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.
A.EA2:
DRV Alarm 2
(SERVOPACK WDC
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
module.
–
Turn the power supply OFF and
then ON again. If the alarm occurs
again, restart communications
processing from the host controller.
The connection between the
SERVOPACK and the command
option module is faulty.
Check the connection between the
SERVOPACK and the command
option module.
Correctly connect the command
option module.
A command option module fault
occurred.
−
Replace the command option mod-
ule.
A SERVOPACK fault occurred. − Replace the SERVOPACK.
A.Eb1:
Safety Function Signal
Input Timing Error
The lag between activations of
the input signals /HWBB1 and
/HWBB2 for the HWBB function
is ten second or more.
Measure the time lag between the /
HWBB1 and
/HWBB2 signals.
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.
A.ED1:
Command Option
Module IF Command
Timeout Error
Processing of the sensor ON
command from the command
option module is not completed.
−
Input a servo ON command when
the motor is stopped.
Processing of the sensor ON
command from the command
option module is not completed.
−
Check that the encoder is connected
correctly and input a sensor ON
command when the motor is
stopped.
A.F10:
Main Circuit Cable
Open Phase
(With the main circuit
power supply ON, volt-
age was low for more
than 1 second in an R, S,
or T phase.)
(Detected when the main
power supply was turned
ON.)
The three-phase power supply
wiring is incorrect.
Check the power supply wiring.
Confirm that the power supply is
correctly wired.
The three-phase power supply is
unbalanced.
Measure the voltage at each phase
of the three-phase power supply.
Balance the power supply by chang-
ing phases.
The connection of the I/O signals
(CN901) between the SERVO-
PACK and converter is faulty.
Check the connection of CN901. Correctly connect CN901.
A fault occurred in the SERVO-
PACK or converter.
−
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.
A.F30:
Dynamic Brake
Contactor Error
The contactor is faulty in the
dynamic brake circuit. Check the contacts to see if they are
welded or not. The contactor may be faulty.
Replace the contactor.
Incorrect wiring of the dynamic
brake answer signal. Check the wiring of the dynamic
brake answer signal. Correctly wire the dynamic brake
answer signal.
A fault occurred in the SERVO-
PACK.
−
Turn the power supply OFF and
then ON again. If the alarm still
occurs, the SERVOPACK may be
faulty. Replace the SERVOPACK.
(cont’d)
Alarm Number:
Alarm Name
(Alarm Description)
Cause Investigative Actions Corrective Actions