
OPERATION
Series 613
104/149
Edition 12.08.2022
984360EC
6.3.4
PI algorithm
This control algorithm may be used for downstream or upstream pressure control depending on
configuration.
6.3.4.1
Control Parameter
Location: CPA/Navigation/Parameters: Pressure Control.Controller x,Control Settings
Parameter
Description
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.
Pressure
Scale
Linear
Logarithmic Recommended if the pressure control extends over
several decades. In most cases, the sensor used is
a logarithmic sensor anyway.
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.