VAT 64246-UEHC-0001 - Tuning of Control Performance

INSTALLATION
Series 642
36/73
Edition 2013-08-22
603685EA
4.6.6 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.
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
No
No
No
No
No
Gain factor
adjustment
Pressure
control
ok ?
Sensor delay
adjustment
Gain factor
adjustment
Setpoint ramp
adjustment
Valve speed
adjustment
Start
End
Pressure
control
ok ?
Pressure
control
ok ?
Pressure
control
ok ?
Contact
VAT
Pressure
control
ok ?
Reset gain
factor to 1.0
Set all
paramters to
default