Alarm List
Alarm Number (4000 to 4999)
Alarm List-903
other If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
4800 WDT ERROR
(CONVERTER)
Sub Code: Signifies the
physical No. of converter in
which the alarm occurred
Connection failure (1)Reset the alarm.
(2)If the alarm occurs again, check the connection and inserting state
of the following cables and connectors.
∙ EAXA21-CN507,510
∙ EAXB21-CN531,532,533
∙ Converter CN551,553
∙ EX1SV (External axis SERVO PACK)-CN591,592
Module failure (converter) (1)Reset the alarm.
(2)If the alarm occurs again, replace the converter.
EAXA21 board failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the EAXA21 board. Save the
CMOS.BIN before replacing the board to be safe.
other If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
4822 HARD WIRE BASE
BLOCK ERROR
Sub Code: Signifies the
control axis number which
detected an error
Connection failure (1)Reset the alarm.
(2)If the alarm occurs again, check the connection and inserting state
of the following cables and connectors.
∙ EAXA21 board CN521(Safety function's jumper connector)
∙ EAXB21 board CN522/523/524(Safety function's jumper connector)
∙ YSF22 board CN217
Fuse failure (1)Reset the alarm.
(2)If the alarm occurs again, check the connection of the fuse of
YSF22 board and then turn the power ON again.
EAXA21 board failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the EAXA21 board. Save the
CMOS.BIN before replacing the board to be safe.
EAXB21 board failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the EAXB21 board. Save the
CMOS.BIN before replacing the board to be safe.
Alarm
Number
Alarm Name
Sub
Code
Meaning Cause Remedy
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