YASKAWA DX100 Maintenance Manual page 122

Alarm Alarm Name Sub
Number Code
21
Meaning Cause
Board failure
(YCP02 board)
YCP01 board failure (1)Turn the power OFF then back ON.
YIF board failure
No response was sent from the Setting error
optional board #2 when the control
power turned ON.
Connection failure
Board failure
(YCP02 board)
Remedy
(1)Turn the power OFF then back ON
(2)If the alarm occurs again, replace the following board. Save the
CMOS.BIN before replace the board to be safe.
· YCP02 board
(2)If the alarm occurs again, replace the YCP01 board. Save the CMOS.BIN
before replace the board to be safe. Replace the YCP01 board, and then
remove the CF from the failure YCP01 board to insert it into the new YCP01
board.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the YIF01 board. Save the CMOS.BIN
before replace the board to be safe. Replace the YIF01 board, and then load
the CMOS.BIN saved before alarm occurred.
(1)Check the following settings.
· The optional board setting in maintenance mode
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connection and insertion of the
following connector.
· The PCI connector of the YCP02 board
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the following board. Save the
CMOS.BIN before replace the board to be safe.
· YCP02 board