YASKAWA SGMJV User Manual page 320

Alarm Number:
Alarm Name
A safety option module fault
A.E74:
occurred.
Unsupported Safety
A unsupported safety option
Option Module
module was connected.
A feedback option module fault
A.E75:
occurred.
Unsupported
Feedback Option
A unsupported feedback option
Module
module was connected.
MECHATROLINK transmission
cycle fluctuated.
A.EA2:
DRV Alarm 2
(SERVOPACK WDT
A SERVOPACK fault occurred.
error)
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.
A.Ed1:
A timeout error occurred when
Command Execution using an MECHATROLINK
Timeout command.
The three-phase power supply
wiring is incorrect.
A.F10:
The three-phase power supply is
Main Circuit Cable
unbalanced.
Open Phase
(A low voltage contin-
A single-phase power is input
ued for one second or
without setting Pn00B.2 (power
longer in either phase R,
supply method for three-phase
S, or T when the main
SERVOPACK) to 1 (single-phase
circuit power supply was
power supply).
ON.)
(Detected when the main
circuit power supply is
A SERVOPACK fault occurred.
turned ON.)
A.F50:
Servomotor Main
A SERVOPACK fault occurred.
Circuit Cable
Disconnection
(The servomotor did not
operate or power was not
supplied to the
servomotor even though
the SV_ON (Servo ON)
The wiring is not correct or there
command was input
is a faulty contact in the motor
when the servomotor
wiring.
was ready to receive it.)
Cause Investigative Actions
−
Refer to the catalog of the con-
nected safety option module.
−
Refer to the catalog of the con-
nected feedback option module or
the manual of the SERVOPACK.
Check the MECHATROLINK
transmission cycle setting.
−
Measure the time lag between the /
HWBB1 and
/HWBB2 signals.
Check the motor status when the
command is executed.
For fully-closed loop control, check
the status of the external encoder
after an output is made to execute
the command.
Check the power supply wiring.
Measure the voltage at each phase
of the three-phase power supply.
Check the power supply and the
parameter setting.
−
−
Check the wiring.
9.1 Alarm Displays
(cont'd)
Corrective Actions
Replace the safety option module.
Connect a compatible safety option
module.
Replace the feedback option mod-
ule.
Connect a compatible feedback
option module.
Remove the cause of transmission
cycle fluctuation at host controller.
Turn the power supply to the SER-
VOPACK OFF and ON again. If the
alarm still occurs, the SERVO-
PACK may be faulty. 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.
Execute the SV_ON or SENS_ON
command only when the motor is
not running.
Execute the SENS_ON command
only when an external encoder is
connected.
Confirm that the power supply is
correctly wired.
Balance the power supply by chang-
ing phases.
Match the parameter setting to the
power supply.
Turn the power supply to the SER-
VOPACK OFF and ON again. If the
alarm still occurs, the SERVO-
PACK may be faulty. Replace the
SERVOPACK.
The SERVOPACK may be faulty.
Replace the SERVOPACK.
Make sure that the servomotor is
correctly wired.
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