SMC Networks PSE200 Operation Manual page 34

Reference
Problem
No.
Indicated values
7
fluctuate.
•Indicator turns
off.
8
•A part of the
indication
misses.
Indicator is
9
blinking.
Pressure indication
difference when
10
using two or more
Pressure switches.
The pressure
indication
11 accuracy does
not satisfy the
specifications.
Possible cause
Incorrect power Check if the power supply voltage
supply is within the range of 12 to 24 VDC.
Check the wiring to the power
supply.
Check if the brown and blue wires
Incorrect wiring
are connected to DC(+) and DC(-)
respectively and if the output line is
about to come off (contact failure).
Incorrect power Check if the power supply voltage
supply is within the range of 12 to 24 VDC.
Power saving Check if the power saving mode is
mode selected.
Product failure
The peak
value/bottom
Check if the peek value or bottom
value indication
value indicating mode is selected.
mode is
selected.
(1)Check the power supply wiring.
(2)Check if bending stress is being
Wiring failure
applied to a specific part of the
lead wire.
Dispersion within
Check if the dispersion is within the
the indication
indication accuracy range.
accuracy range
Product failure
Check if foreign matter has entered
Foreign matter
the pressure port.
Air and liquid Check if air and liquid are leaking
leakage from the piping.
Check if the product satisfies the
Insufficient
specified accuracy 20 minutes after
warm-up
supplying power.
Product failure
-33-
Investigation method Countermeasure
Supply power supply voltage
of 12 to 24 VDC.
Correct the wiring.
Supply power supply voltage
of 12 to 24 VDC.
Reset the setting of function.
Replace the product.
Turn off the peak
value/bottom value indication
mode.
(1)Correct the wiring.
(2)Correct the wiring (bending
radius and stress).
Use the fine adjustment mode
to adjust the indication if the
dispersion is within the
indication accuracy range.
Replace the product.
Install a 5 µm filter to prevent
foreign matter from getting into
the pressure port. Also, clean
the filter regularly to prevent
drainage deposits.
Rework the piping.
If excessive tightening torque
over the specified range is
applied, a mounting screw,
mounting bracket, and product
may be broken.
After energizing, indication
can drift. For detecting fine
pressure, warm up the product
for 20 to 30 minutes.
Replace the product.
No.PS##-OMH0006-C