Alarm List
Alarm Number (1000 to 1999)
Alarm List-295
YCP21 board failure (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the YCP21 board. Save the 
CMOS.BIN before replace the board to be safe.  Replace the YCP21 
board, and then remove the CF from the failure YCP21 board to insert 
it into the new YCP21
YSF21 board failure (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the YSF21 board.
other If the alarm occurs again, save the CMOS.BIN in maintenance mode, 
and then contact your Yaskawa representative about occurrence 
status (operating procedure).
1241 SAFETY FIELDBUS 
SYSTEM ERROR
1 Processing of safety field bus 
was not successful.
YSF21 board failure (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the YSF21 board.
other If the alarm occurs again, save the CMOS.BIN in maintenance mode, 
and then contact your Yaskawa representative about occurrence 
status (operating procedure).
10 Processing of safety field bus 
was not completed to the 
default time.
YSF21 board failure (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the YSF21 board.
other If the alarm occurs again, save the CMOS.BIN in maintenance mode, 
and then contact your Yaskawa representative about occurrence 
status (operating procedure).
11 error was detected with the 
status check of safety field 
bus communication.
YSF21 board failure (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the YSF21 board.
other If the alarm occurs again, save the CMOS.BIN in maintenance mode, 
and then contact your Yaskawa representative about occurrence 
status (operating procedure).
12 Invalid processing was 
detected by the safety field 
bus.
YSF21 board failure (1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the YSF21 board.
other If the alarm occurs again, save the CMOS.BIN in maintenance mode, 
and then contact your Yaskawa representative about occurrence 
status (operating procedure).
Alarm
Number
Alarm Name Sub
Code
Meaning Cause Remedy