SMC Networks ZSE20(F) ISE20 Manual page 59

Problem
Problem
No.
•The display
turns OFF.
8
•Part of the
display is
missing.
9 Display flashes.
Pressure display
is unstable when
10 products are in
close proximity to
each other.
The display
accuracy does
11
not meet the
specifications.
Display
measurement
12
unit cannot be
changed.
Problem possible
causes
Incorrect power Check if the power supply voltage is
supply in the range 12 to 24 VDC ±10%.
Check the power supply wiring.
Check if the brown and blue wires are
Incorrect wiring connected to DC(+) and DC(-)
respectively, and if the wiring is
secure.
Power saving Check if power saving mode is
mode selected.
Product failure
(1) Check the power supply wiring.
(2) Check if there is bending stress
Incorrect wiring
applied to any part of the lead
wire.
Variation within
Check if the variation is within the
the display
display accuracy range.
accuracy range
Product failure
Foreign matter Confirmed foreign matter entry or
entered sticking to the piping port.
Air or liquid Check if air or liquid are leaking from
leakage the piping.
Check if the product satisfies the
Warming up
specified accuracy 10 minutes after
inadequate
supplying power.
Product failure
Model selection
(model selected Check if the product number printed
does not have on the product indicates units
units selection selection function type.
function)
Product failure
-58-
Investigation method Countermeasures
Supply power in the range
12 to 24 VDC ±10%.
Check and correct the
wiring.
Select the power saving
mode again.
Replace the product.
(1) Check and correct the
wiring.
(2) Correct the wiring (bend
radius and stress).
Use the fine adjustment
mode to adjust the display if
the variation is within the
display accuracy range.
Replace the product.
Use 5 m of filter to prevent
foreign matter from entering
or sticking. Discharge the
condensate of the filter
periodically.
Rework the piping.
If the tightening torque is
exceeded, the mounting
screws, brackets and the
pressure switch may be
damaged.
After energizing, the display
and output can drift. For
precise pressure detection,
allow the product to warm up
for 10 to 15 minutes.
Replace the product.
Unit s selection function is
not available for fixed to SI
units type.
(kPaMPa is available)
: The units selection function is
not for use in Japan due to a
new measurement law.
: Fixed to SI units: kPa, MPa
Replace the product.
No.PS※※-OMS0007-D