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Installation, Operating & Maintenance Instructions
Series 615 DN 40 (I.D. 1.5”), RS485
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 [email protected] www.vatvalve.com
289111EB
2013-02-05
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3.11.2.1 P-Gain adjustment
The P-gain effects:
Stability
Response time
Adjustment range is from 0.001 to 100.
Higher gain results in:
faster response
higher over- / undershoot of pressure
Lower gain results in:
slower response
lower over- / undershoot of pressure
Adjustment procedure:
1. Start with P-Gain according to «Pressure controller configuration».
2. Open valve.
3. Control a typical pressure / flow situation.
4. Repeat with lower (higher) gain factors until optimal pressure response is achieved and stability is ok.
Note:
In case it‟s not possible to achieve stable pressure control you may need to improve sensor connection. Refer
to «Requirements to sensor connection».
Local operation
:
(„Control View‟, „Control Performance Analyzer‟ or
‟Service Box 2‟)
Remote operation
:
(Refer to chapter «RS485 setup commands» for
details)
Go to „Tools / Terminal‟ menu and send configuration
command for adjustment. Refer to « Pressure
controller configuration» for command details.
Send
PID CONTROLLER CONFIGURATION
3.11.2.2 I-Gain adjustment
The I-gain effects:
Stability
Response time
Adjustment range is from 0.001 to 100.
Higher gain results in:
faster response
higher over- / undershoot of pressure
Lower gain results in:
slower response
lower over- / undershoot of pressure
Adjustment procedure:
1. Start with I-Gain according to « Pressure controller configuration».
2. Open valve.
3. Control a typical pressure / flow situation.
4. Repeat with lower (higher) gain factors until optimal pressure response is achieved and stability is ok.
Note:
In case
it‟s not possible to achieve stable pressure control you may need to improve sensor connection. Refer
to «Requirements to sensor connection».
Local operation
:
(„Control View‟, „Control Performance Analyzer‟ or
‟Service Box 2‟)
Remote operation
:
(Refer to chapter «RS485 setup commands» for
details)
Go to „Tools / Terminal‟ menu and send configuration
command for adjustment. Refer to « Pressure
controller configuration» for command details.
Send
PID CONTROLLER CONFIGURATION