YASKAWA UAK series User Manual page 288

11 Inspection, Maintenance, and Troubleshooting
11.2.4 Troubleshooting of the EtherCAT (CoE) Communications
Alarm
Code
0A47h
0A48h
11-34
Alarm Name
Object 2300h was exe-
cuted while an utility
function was being exe-
cuted using the Sig-
maWin for Σ-V-SD (MT).
The power supply was
turned ON or object
2300h was executed
while the encoder was not
Loading Servo
connected.
Information Error
The power supply was
turned ON or object
2300h was executed
while alarm 040h
(Parameter Setting Error
1) occurred.
Fault occurred in the
SERVOPACK.
The power supply was
interrupted during param-
eter writing.
The number of parame-
ters written exceeded the
maximum value.
EEPROM Parameter
Data Error
The power supply voltage
momentarily dropped.
Fault occurred in the
SERVOPACK.
Cause Investigative Action
–
Check the wiring of the
encoder.
Check the setting of the
parameter.
–
Check the timing of the
power interruption.
–
Measure the power sup-
ply voltage.
–
(cont'd)
Corrective Action
Turn the power supply
OFF and ON again.
Reconnect the encoder,
and then turn ON the
power supply again.
Reset the parameter, and
then turn ON the power
supply again.
Repair or replace the
SERVOPACK.
Initialize the parameter
set value (object 1011h),
and then input the param-
eter again.
Repair or replace the
SERVOPACK.
Correct the parameter
writing method.
Set the power supply
voltage within the speci-
fications, and initialize
the parameter set value
(object 1011h).
Repair or replace the
SERVOPACK.