Pressure Monitoring Pulse Valve - Walter Valve Controller Originalbetriebsanleitung

7.5.3

Pressure Monitoring Pulse Valve

The pressure monitoring settings of a connected pulse valve are graphically explained using the
following diagrams.
Process
press., max.
P
start
Process
press., min.
Valve open
closed
The red curve represents the pressure graph. The status "valve open" or "closed" is indicated by the
green lines. The process pressure P
maximum pressure start/end. Likewise, the minimum pressure start/end must not be undershot. If
the pressure graph is above or below the limit, there is an error.
In order for the pressure monitoring system to detect an opening of the valve, the pressure must
drop by the opening limit value (∆P1) relative to the starting pressure (P
detect the pressure monitoring within the start delay (1) after activation of the valve, otherwise the
current dosage is considered to be faulty.
Parameter
Start delay
Stop delay
Min press. start/ end
Max press. start/ end
P
start
P
min
Valve open
closed
WVC
∆P
1
1
start
unit
ms
ms
bar
bar
∆P
2
at the start of a dosing process must not exceed the
2
Process press.
). This opening must
start
Process press.
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