VAT 615 Series Installation, Operating, & Maintenance Instructions page 42

3.11.1.1 Gain factor adjustment
The gain factor effects:
Stability
Response time
Default value is 0.56. Adjustment range is from 0.0001 to 7.5.
Higher gain results in:
Lower gain results in:
Adjustment procedure:
1. Start with gain factor 1.0
2. Open valve.
3. Control a typical pressure / flow situation.
4. Repeat from step 2 with lower (higher) gain factors until optimal pressure response is achieved and stability is ok.
Note: Normally adjustments down to gain factors of 0.42 should lead to good results. Otherwise you may need to
improve sensor connection. Refer to «Requirements to sensor connection».
Local
('Control View', 'Control Performance Analyzer' or
Set gain factor in menu 'Setup / Control Parameter'
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 CH@vatvalve.com www.vatvalve.com
Installation, Operating & Maintenance Instructions
Series 615 DN 40 (I.D. 1½"), DeviceNet
faster response
slower response
operation:
'Service Box 2')
higher over- / undershoot of pressure
lower over- / undershoot of pressure
(Refer to chapter «S-Singel Stage Controller Object»
Send PID CONTROLLER GAIN FACTOR
Remote operation:
forr details)
603476EA
2013-07-25
42/102