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YASKAWA DX100 Maintenance Manual page 350

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Alarm
Alarm Name
Sub
Number
Code
1807
M-SAFETY SLAVE
1
TIME OUT(CPU1)
Meaning
Cause
There is the EAXA board for
Connection failure
display of the 7 segment
LED(DS1) of EAXA board is not
"d" (on-line process).
YSU unit failure
EAXA board failure
Remedy
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connection of the following
communication cables.
· The communication cable between EAXA board (CN518 connector) and
YSU unit (CN202 connector)
(3)After confirmation of the communication cable connection, and then if the
alarm occurred again, replace the communication cable below.
· The communication cable between EAXA board (CN518 connector) and
YSU unit (CN202 connector)
(1)Turn the power OFF then back ON.
(2)After replacement the communication cable, and then if the alarm
occurred again, replace the YSU unit. Save the CMOS.BIN before replace
the YSU unit to be safe.
(1)Turn the power OFF then back ON.
(2)After replacement the YSU unit, and then if the alarm occurred again,
replace the EAXA board. Save the CMOS.BIN before replace the EAXA
board to be safe.

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