YASKAWA DX200 Maintenance Manual page 1145

Alarm Name
Alarm Sub
Number
Code
4927 YSF24 GENERAL
OUTPUT UNMATCH
Meaning Cause
YFC22 board failure
Other
The meaning of each sub Connection failure
code is as follows:
CPU1 1:XOUT1
CPU1 2:XOUT2
CPU1 3:XOUT3
CPU1 4:XOUT4
CPU1 5:XOUT5
CPU1 6:XOUT6
CPU1 7:XOUT7
CPU1 8:XOUT8
CPU2 1:XOUT1
CPU2 2:XOUT2
CPU2 3:XOUT3
CPU2 4:XOUT4
CPU2 5:XOUT5
CPU2 6:XOUT6
CPU2 7:XOUT7
CPU2 8:XOUT8
YSF21 board failure
YSF22 board failure
YSF24 board failure
Remedy
(1)Reset the alarm.
(2)If the alarm occurs again, replace the YFC22 board.
In a system where a plurality of YFC22 boards are connected, replace
the board on which the alarm occurred.
If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
(1)Reset the alarm.
(2)If the alarm occurs again, check the connection and inserting state
of the following cables and connectors.
∙
YSF24
∙
Cable continuity between YSF22 board and YSF24 board.
(1)Reset the alarm.
(2)If the alarm occurs again, replace the YSF21 board.
(1)Reset the alarm.
(2)If the alarm occurs again, replace the YSF22 board.
In a system where a plurality of YSF22 boards are connected, replace
the board on which the alarm occurred.
(1)Reset the alarm.
(2)If the alarm occurs again, replace the YSF24 board.
In a system where a plurality of YSF24 boards are connected, replace
the board on which the alarm occurred.