YASKAWA DX200 Maintenance Manual page 1110

Alarm Name
Alarm Sub
Number
Code
4766 M-SAF CONTACT
OFF FB DIAG. ERROR
4767 M-SAF GENERAL
OUT FB DIAG.
ERROR
Meaning Cause
YBK21 board failure
Other
Connection failure
YSF21 board failure
YSF22 board failure
YPU51 unit failure
Other
The meaning of each sub Connection failure
code is as follows:
CPU1 1:GSEDM1
CPU1 2:GSEDM2
CPU2 1:GSEDM1
CPU2 2:GSEDM2
Remedy
(1)Reset the alarm.
(2)If the alarm occurs again, replace the YBK21 board.
In a system where a plurality of YBK21 boards are connected, replace
the board, which is connected to 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.
∙
YSF22-CN217
∙
YPU52-CN607
∙
Cable continuity between YSF22 board and YPU52 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 YPU51 unit.
In a system where a plurality of YPU51 units are connected, replace
the board, which is connected to the unit 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.
∙
YSF22 CN219
∙
YSF22-YFC22
∙
Check connectors of the connected outside devices of GSEDM signal
line.