# Pressure Control Speed adjustment

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Valve speed effects: Response time

Adjustment range is from 0.001 to 1.0, with 1.0 meaning 100%.

Default value is 1.0.

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 adjustment, Sensor Delay adjustment and Setpoint Ramp adjustment 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 Mechatronic.Support@vatgroup.com .