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8-448
4387
M-SAFETY
CONTACTOR
STICK(CPU1)(2)
1
CPU1 detected feedback value
(KMMB) did not turn ON/OFF
within a certain time period from
contactor 1 SERVO ON/OFF, or
CPU1 detected poor connection
between YSU unit and contactor.
Connection failure
(1)Reset the alarm.
(2)If the alarm occurs again, execute the following contents.
·Connection confirmation between YSU unit (CN214 connector) and the
contactor
Contactor failure
(1)Reset the alarm.
(2)If the alarm occurs again after confirming the connection, execute the
following contents.
·Replacement the connected contactor or relay that drives contactor
YSU unit failure
(1)Reset the alarm.
(2)If the alarm occurs again after replacement the contactor or relay that
drives contactor, replace the YSU unit. Save the CMOS.BIN before replacing
the YSU unit to be safe.
2
CPU1 detected feedback value
(KMMB) did not turn ON/OFF
within a certain time period from
contactor 2 SERVO ON/OFF, or
CPU1 detected poor connection
between YSU unit and contactor.
Connection failure
(1)Reset the alarm.
(2)If the alarm occurs again, check the followings.
·Connected confirmation of YSU unit (CN213 connector) and contactor
Contactor failure
(1)Reset the alarm.
(2)If the alarm occurs again after confirming the connection, execute the
following contents.
·Replacement the connected contactor or relay that drives contactor
YSU unit failure
(1)Reset the alarm.
(2)If the alarm occurs again after replacement the contactor or relay that
drives contactor, replace the YSU unit. Save the CMOS.BIN before replacing
the YSU unit to be safe.
Alarm
Number
Alarm Name
Sub
Code
Meaning
Cause
Remedy