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4.6.7
Tuning of control performance
Normally the default settings will result in good pressure control performance. For some applications
tuning may be required to improve performance. The tuning procedures for each parameter (grey boxes)
and its default values are described separately below. Strictly keep the procedure order.
Start
Set all
paramters to
default
Pressure
control
ok ?
No
Gain factor
adjustment
Pressure
control
ok ?
Required information for support:
Go to 'Tools / Create Diagnostic File' in 'Control View' resp. 'Control Performance Analyzer' and save
file
Pressure / flow / gas conditions to be controlled
Chamber volume
Pumping speed (l/s) and pump type (e.g. turbo pump)
System description
Problem description
Send diagnostic file with and all required information to tuning-support@vat.ch
34/83
INSTALLATION
Reset gain
factor to 1.0
Sensor delay
adjustment
Gain factor
adjustment
No
No
Pressure
control
ok ?
Edition 2013-04-12
Setpoint ramp
Valve speed
adjustment
adjustment
No
Pressure
Pressure
control
ok ?
Series 612
No
control
ok ?
Contact
End
VAT
601894EA
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