SMC Networks EX600-SDN Series Operation Manual page 50

Fault
When
no.
Output type is not compatible
Program does not operate
normally
Power supply for output is
defective
Digital output
7 equipment does not
Wiring and connection is defective
operate normally
Digital output unit is defective
Output equipment is defective
Power supply for control and input
is defective
Input signal range setting is not
compatible
Analogue data format is not
compatible
Analogue input
8 sensor does not
Wiring and connection is defective
operate normally
Analog input unit is defective
Defective sensor
Other peripheral
9 units do not operate Defective peripheral units
normally
Fault
Check if output unit specification
(PNP or NPN) and connected load
specification are compatible.
Check if ladder program in PLC is
correct.
Check the power supply.
Check connection and wiring
between output equipment and
digital output unit.
Check the power supply.
Check the specification of the
connected sensor.
Check the data format setting of
the analog input unit.
Check connection and wiring
between sensor and analog input
unit.
Check if ladder program in PLC is
correct.
- 50 -
Check
Replace the output unit or load to
give the correct combination.
Correct ladder program, as
necessary.
Adjust or replace power supply.
Correct wiring and confirm all output
equipment and cables are connected
correctly.
Replace the digital output unit and
–
check correct operation.
Replace the output equipment and
check correct operation.
–
If the problem continues, refer to the
output equipment manual.
Adjust or replace power supply.
Set the input signal range to suit the
sensor specification.
Set the data format of the analog
input unit to suit the
application/program.
Correct wiring and confirm sensor
and cables are connected correctly.
Replace the analog input unit and
–
check correct operation.
Replace the sensor and check
correct operation.
–
If the problem continues, refer to the
sensor manual.
For further details, refer to the
relevant manuals of each peripheral
unit.
Action
No.EX##-OML0007