Omron CJ - 09-2009 Operation Manual page 554

Error Processing
Status Error Program-
Console
display
Stopped CPU reset – – – –
CPU Standby Errors
Status Error Program-
Console
display
Stopped CPU CPU
standby WAIT'G
error
506
Error Error
ming flags in code (in
Auxiliary A400)
Area
None None
Note When power supply is interrupted to an Expansion Rack, the CPU Unit will
stop program execution and the same operations as are performed when the
power supply to the CPU Unit is interrupted will be performed. For example, if
the power OFF interrupt task is enabled, it will be executed. If power is then
restored to the Expansion Rack, the CPU Unit will perform startup processing,
i.e., the same operational status as existed before the power interrupt will not
necessarily be continued.
A CPU standby error has occurred if the indicators have the following condi-
tions in RUN or MONITOR mode.
When a CJ-series CPU Unit is turned ON, cyclic servicing is started and RUN
mode is entered only after all Special I/O Units and CPU Bus Units have been
detected. If the startup mode is RUN or MONITOR mode, the CPU will remain
on standby until all Units have been directed.
Power Supply
Unit Indicator
POWER
ON
Error Error
ming flags in code (in
Auxiliary A400)
Area
None None
Flags Probable cause
None Power is not being
supplied to an
Expansion Rack.
I/O Control Unit is
not connected cor-
rectly, e.g., more
than one is con-
nected or one is
connected to an
Expansion Rack.
The I/O Connecting
cable is not con-
nected correctly,
e.g., the connections
to the input and out-
put connectors on
the I/O Interface Unit
are backward.
CPU Unit Indicators
RUN ERR/ALM
OFF OFF
Flags Probable cause
None A CPU Bus Unit has not
started properly.
A Special I/O Unit, or
Interrupt Input Unit was
not recognized.
Section 11-2
Possible remedy
Supply power to the Expan-
sion Racks.
Turn OFF the power supply,
correct the connections, and
turn the power supply back
ON.
Turn OFF the power supply,
correct the connections, and
turn the power supply back
ON.
INH PRPHL COMM
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Possible remedy
Check the settings of the
CPU Bus Unit.
Read the I/O table and
replace any Special I/O
Unit or Interrupt Input
Units for which only "$" is
displayed.
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