YASKAWA MOTOMAN DX100, Руководство по обслуживанию, Страница: 549 / 729

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18 CPU1 detected an inconsistency
of servo ON 2 signal (SFRDY2). YSU unit failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the YSU unit. Save the CMOS.BIN
before replacing the YSU unit to be safe.
19 CPU1 detected an inconsistency
of contactor 2 signal (KMMB2). Connection failure (1)Reset the alarm.
(2)If the alarm occurs again, check the followings.
·Wiring confirmation of pin numbers A5, A6, B5, and B6 of YSU unit (CN213
connector)
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 or
connection cable
failure (1)Reset the alarm.
(2)If the alarm occurs again after replacement the contactor or relay that
drives contactor, execute the following contents. Save the CMOS.BIN before
replacing the YSU unit to be safe.
·Replacement of YSU unit
·Replacement of connection cable
20 CPU1 detected an inconsistency
of servo ON 3 signal (SFRDY3). YSU unit failure (1)Reset the alarm.
(2)If the alarm occurs again, replace the YSU unit. Save the CMOS.BIN
before replacing the YSU unit to be safe.
21 CPU1 detected an inconsistency
of contactor 3 signal (KMMB3). Connection failure (1)Reset the alarm.
(2)If the alarm occurs again, check the followings.
·Wiring confirmation of pin numbers 5, 6, 7, and 8 of YSU unit (CN215
connector)
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
Alarm
Number
Alarm Name Sub
Code
Meaning Cause Remedy