Series 613 OPERATION
984360EC Edition 12.08.2022 103/
Pressure Control Speed adjustment
Valve speed effects: Response time
Adjustment range is from 0.001 to 1.0
Default value is 1.0
Location: CPA/Navigation/Parameters: Pressure Control.Pressure Control Speed
This parameter effects valve plate actuating speed.
Speed adjustment is effective for PRESSURE CONTROL and POSITION CONTROL.
Normally best pressure control response is achieved with maximum Pressure Control
Speed. In particular applications it may be of advantage to have a slower valve
response.
OPEN and CLOSE are always done with maximum speed.
Adjustment procedure:
1. Use optimal Gain Factor, sensor delay time and setpoint ramp according to preceding tuning
steps.
2. Open valve.
3. Control a typical pressure / flow situation.
4. Repeat from step 2 with slower Pressure Control Speed until required response is achieved.
Required information for support:
• Go to ‘Tools / Create Diagnostic File’ in ‘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
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