Troubleshooting Flowcharts
Section 5-2
Fault Check Flowchart
RUN indicator not lit
A
At this time, it is assumed that the POWER indicator is normally
lit.
RUN or
MONITOR
mode?
NO
Set RUN or MONITOR
mode
B
YES
YES
NO
RUN indica-
tor lights?
ERROR indi-
cator lights?
(To next page)
C
A
NO
YES
Connect peripheral de
-
T
urn power OFF and ON
End
vice and check error
again
NO
NO
Can Online
mode be set?
Can Online
mode be set?
YES
YES
YES
YES
WDT indica
-
WDT indica
-
tor lights?
tor lights?
NO
B
NO
Check word A306
Replace Unit
ON
ON
ON
ON
START input OFF
I/O verify error*
Close START input termi-
A30600 ON?
nals of Power Supply Unit
OFF
Unit is disconnected. Iden
tify erroneous Unit by veri
fying I/O table, mount Unit
correctly, and then create
I/O table
-
A30601 ON?
-
OFF
*When an I/O verifica
-
tion error is specified
as a fatal error in the
PC Setup.
SYSMAC BUS terminator
missing
Check terminator and
Slave Rack Power Supply
Unit of SYSMAC BUS
A30602 ON?
OFF
**This error does not
occur when disabled
as an error in the PC
Setup.
SYSMAC BUS/2 termina
tor missing**
-
Check terminator and
Slave Rack Power Supply
Unit of SYSMAC BUS/2
A30603 ON?
OFF
B
83
OMRON [ OMRON ELECTRONICS LLC ]
