Omron CV500 Installation Manual page 101

Troubleshooting Flowcharts
Alarm Check Flowchart
88
Although the PC does not stop when the ALARM indicator lights, check and cor-
rect such errors as soon as possible.
A
ALARM indica-
tor lights?
YES
Connect peripheral device
and check error
System error
(FAL)?
NO
JMP error?
NO
Indirect DM
BCD error?
NO
Non-fatal SFC
error?
NO
Rack power
failure?
NO
I/O verify error?
NO
B (To next page)
NO
End
(A40215 ON)
YES
Check FAL No. with word
A430 to A461 and remove
cause of error
(A40213 ON)
YES
Destination of JMP is
missing
(A40212 ON)
YES
Contents of indirectly ad-
dress are not BCD
(A40211 ON)
YES
Check program of SFC
(A40210 ON)
YES
Check Racks recognized
by CPU with word A419
and turn ON power to
Rack No. whose bits are
OFF
(A40209 ON)
YES
I/O Unit has been re-
moved. Check I/O Units by
verifying I/O table. Correct-
ly mount Units, or create
I/O table
Section 5-2
A