YASKAWA DX200 Maintenance Manual page 1096

Alarm Name
Alarm Sub
Number
Code
4742 M-SAF PBESP SIG.
ERROR
Meaning Cause
Programming pendant
failure
YSF21 board failure
YSF22 board failure
Other
Emergency stop signal of the Connection failure
panel box was unmatched for
a certain time.
Hardware failure
YSF21 board failure
YSF22 board failure
YFC22 board failure
Other
Remedy
(1)Reset the alarm.
(2)If the alarm occurs again, replace the programming pendant.
(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 YSF22 board which is connected to the first EAXA21 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)Reset the alarm.
(2)If the alarm occurs again, check the connection and inserting state
of the following cables and connectors.
∙
YSF22-CN218
∙
Check connectors of the connected outside devices of EMERGENCY
STOP signal line.
(1)Reset the alarm.
(2)If the alarm occurs again, replace the emergency stop switch of the
panel box.
(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 YSF22
board which is connected to the first EAXA21 board.
(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, which is connected to the XIN signal 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).