11 -
4
11. TROUBLESHOOTING
11.2.3 Flow for actions when the "RUN" LED is turned OFF
The corrective action when the "RUN" LED turns OFF during operation is described.
The "RUN" LED
turned OFF.
YES
NO
Is there
an error display when
the peripheral device is
connected?
Reset the CPU module
using the RUN/STOP key
switch.
Set the CPU module
RUN/STOP key switch to
the "STOP" position, and
write END to the address
0 of the peripheral device.
Set the RUN/STOP key
switch to the "RUN"
position and operate by
setting the system to the
monitor mode with the
peripheral device.
"RUN" LED turns
"RUN" LED turns
"RUN" LED turns
"RUN" LED does not turn
Possibility of error in the
sequence program.
Check the program, and
correct the errors in the
program.
Connect a surge suppression
circuit such as a CR to the noise
source.
Describe the problem to the
nearest service center, retail
store, or corporate office, and
obtain advice.
For (1)
For (2)
(1) Part error or bad connection
of PLC.
(2) Caused by excessive noise.
Perform the correction using the
error detail list.
Содержание A2USCPU(S1)
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