YASKAWA DX200 Maintenance Manual page 1115

Alarm Name
Alarm Sub
Number
Code
4773 M-SAF CONTACT FB
DIAG. ERR (CPU2)
4776 M-SAF YSF LOGIC 0
FILE SIGNAL ERR
Meaning Cause
YSF22 board failure
YSF24 board failure
Other
The meaning of each sub Connection failure
code is as follows:
1:KMMB1
2:KMMB2
3:KMMB3
4:KMMB4
YSF21 board failure
YSF22 board failure
YPU unit failure
Other
Start-up, in reading Setting error
information from the
FlashROM of YSF21 board,
YSF21 board has detected an
undefined signal.
Remedy
(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 YSF24 board.
In a system where a plurality of YSF24 boards are connected, replace
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
∙
YPU-CN607
∙
Cable continuity between YSF22 board and YPU unit.
(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 YPU unit.
If the alarm occurs again, save the CMOS.BIN in maintenance mode,
and then contact your Yaskawa representative about occurrence
status (operating procedure).
(1)Please display the screen of the "safety function" - "safe logic
circuit", and check the value of a "signal", "logic", and a "timer."
When a value is inaccurate, please set up the right value and perform
"writing."