Alarm List
Alarm Number (4000 to 4999)
Alarm List-905
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.
YSF22 board failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the YSF22 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).
4825 BASE ENABLE
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
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.
YSF22 board failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the YSF22 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).
4826 CONTACTOR ERROR
(STO)
Sub Code: Signifies the
control axis number which
detected an error
YPU unit failure (1)Reset the alarm.
(2)Check if the contactors (1KM and 2KM) are open, and not damaged
by melting or sticking.
(4)If the alarm occurs again, replace the YPU unit. Save the
CMOS.BIN before replacing the unit to be safe.
Alarm
Number
Alarm Name
Sub
Code
Meaning Cause Remedy
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