SMC Networks PFCA7 Series User Manual

-67-
No.PF※※-OMA1002
Problem
Possible cause
Investigation method
Countermeasures
Flow does not start
Flow is unstable
The control accuracy
does not meet the
specifications
Entry of foreign matter
Check for foreign matter entry or
sticking to the piping port.
Use a filter to prevent foreign
matter from entering or sticking.
Discharge the condensate of
the filter periodically.
Piping in the reverse
direction
Check the fluid direction.
Mount the product so that the
fluid flow direction is the same
as the arrow indicated on the
product label.
Air leakage
Check if air is leaking from the
piping.
Rework the piping. If the
tightening torque is exceeded,
the mounting screws, brackets
and the pressure switch may be
damaged.
Pressure fluctuation
Check if the pressure is
fluctuating.
It is possible that pulsation is
generated due to the
characteristics of the
compressor acting as the
pressure source or the pump.
Change to a pressure source
with less fluctuation or install a
tank which reduces the
pressure fluctuation.
Insufficient or excess
pressure
Check if the pressure is within the
product specification.
Check any pressure loss in the
piping or filter.
Use the product within the
operating differential pressure
and operating pressure range.
Fluid and reference
condition mismatch
Check to see if the fluid and
reference condition are consistent
with the operating conditions.
Set the fluid and reference
condition according to the
operating conditions.
Insufficient
warming-up time
Check the product operation after
10 minutes have passed after
turning on the power.
After energizing, the display
and output can drift.
Allow the product to warm up
for at least 10 minutes.
The product failed
Replace the product.
2023-12-20 14:49
DL145266

SMC Networks PFCA7 Series Specifications

General

Brand	SMC Networks
Model	PFCA7 Series
Category	Controller
Language	English