Mitsubishi A2USCPU(S1), User Manual

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11 - 8
11. TROUBLESHOOTING
11.2.7 Flow for actions when the output module's output load does not turn ON
The corrective action when the output load of the output module does not turn ON during
operation is described.
POINT
For problems when the input signal does not turn off and load does not turn off,
perform troubleshooting by referring to the fault examples for the I/O module in
Section 11.4.
NO
YES
0V
NG
OK
NO
YES
0V
The output load
does not turn ON.
Is the output
module's operation
display ON?
Is the
voltage of the
load power supply
included?
Check the output status
with the peripheral device
in monitor mode.
Is the operation
display of the input
module ON?
Confirm that the input
signal is OFF with the
peripheral device in
monitor mode.
Check the wiring of the
load power, and recover
the power.
What is the
voltage of between
each output COM terminal
of the output
module?
The supplied
voltage value
is output.
Output module error.
Replace the output
module.
Confirm the rush current
when the maximum load
turn ON simultaneously.
Check the load wiring and
load, and recover.
Change the output relay
number to set the current
when the maximum load
turn ON simultaneously
within specification.
OFF
ON
Check the external
wiring and external
input equipment.
Describe the problem to
the nearest service center,
retail store, or corporate
office, and obtain advice.
Measure the input to the
module and voltage
between COM terminals.
Input
signal OFF
Supply
voltage
value