YASKAWA DX200 Maintenance Manual page 246

Alarm Name
Alarm Sub
Number
Code
3
4
Meaning Cause
An error was detected in Setting error
communications with the I/O
module board connected with
3rd serial bus when the
control power turned ON.
Connection failure
I/O module failure
YIF01 board failure
other
An error was detected in Setting error
communications with the I/O
module board connected with
4th serial bus when the
control power turned ON.
Remedy
(1)Check the following settings.
∙
The rotary switch setting which specifies slot numbers of each I/O
module
∙
I/O module settings in maintenance mode
Please refer to the manual of each IO module for the details of the
setting.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connection and insertion of the
following cables and connectors.
∙
The M II communications cable which I/O module of the
corresponding node number
∙
(In case of M II communications last station) Terminator
∙
24V power of the corresponding I/O module
(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.
(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.
If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
(1)Check the following settings.
∙
The rotary switch setting which specifies slot numbers of each I/O
module
∙
I/O module settings in maintenance mode
Please refer to the manual of each IO module for the details of the
setting.