YASKAWA DX200 Maintenance Manual page 586

Alarm Alarm Name Sub
Number
Code
203
204
205
Meaning Cause
YSF22 board failure
Other
CPU2 of YSF21 board was Connection failure
not able to detect connection
with YSF22 board in start up
process.
YSF21 board failure
YSF22 board failure
Other
CPU2 of YSF21 board Connection failure
detected connection with CH1
of YSF22 board in start up
process.
YSF21 board failure
YSF22 board failure
Other
CPU2 of YSF21 board did not Connection failure
detect a response from
YSF22 board within a time
limit.
YSF21 board failure
Remedy
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the YSF22 board.
If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
Check the connection of the MII cable between YSF21 board and
YSF22 board.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the YSF21 board.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the YSF22 board.
If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
Check the connection of the MII cable between YSF21 board and
YSF22 board.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the YSF21 board.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the YSF22 board.
If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connection and insertion of the
following boards.
Check the connection of the MII cable between YSF21 board(CN203)
and YSF22 board(CN250/CN251).
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the YSF21 board.