VAT 653 Series - Page 54

INSTALLATION Series
65
54/129 Edition 2019-05-03 963283EA
4.10.2.2 Control parameter
Depending on the Control Algorithm setting there are different parameters available to adjust the
algorithm:
Parameter Description
Adaptive
Gain Factor
The
Gain Factor
is a control parameter to adapt the
performance of the pressure control algorithm. A higher
gain results in a faster response, higher over- /
undershoots of pressure. A lower gain results in slower
response, lower over- / undershoot of pressure.
Sensor
Delay
The
Sensor Delay
is a control parameter to compensate
delays during the pressure detection. Pipes and orifices
for sensor attachment can cause delays in response time
and could impact badly the pressure control stability. By
adapting this parameter to the approximate delay time
stability problems can be reduced. But control response
time will be slowed down by this measure.
Learn Data Selection
There are up to 4 different learn data sets available.
Select which Learn Data set the adaptive controller shall
use for pressure control.
PI
P
-
Gain
The
P
-
Gain
is the proportional factor of the fixed control
algorithm. A higher P-Gain results in faster response,
higher over- / undershoot of pressure.
I
-
Gain
The
I
-
Gain
is the integral factor. The
I
-
Gain
helps to
reach the target pressure exactly.
Direction
The
Control Direction
defines the type of application, if
the valve is mounted in downstream or upstream.
Downstream means the valve is after the chamber and
before the pump. Upstream, valve is mounted before
chamber and pump.
Soft
Pump
P
-
Gain
The P-Gain is the proportional factor of the fixed control
algorithm. A higher P-Gain results in faster response,
higher over- / undershoots of pressure.
I
-
Gain
The
I
-
Gain
is the integral factor. The
I
-
Gain
helps to
reach the target pressure exactly.