# Setpoint Ramp adjustment

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Setpoint Ramp effects: Undershoot of pressure, Response time

This parameter defines the time that is used to decrease / raise pressure between 2 setpoints, particularly during pressure reduction, optimizing the setpoint ramp time can significantly enhance pressure response.

Pressure chart

Choose the applicable formula depending on units you are familiar with.

t = Setpoint Ramp

Adjustment procedure:

1.Start with optimal Gain Factor adjustment and Sensor Delay adjustment according to preceding tuning steps.

2.Control a typical pressure / flow situation.

3.Control a lower pressure.

4.Repeat from step 2 with longer setpoint ramps until best response is achieved.

5.Verify pressure control response for a setpoint raise situation.

|  | In case a long ramp time is required to get optimal performance for pressure decrease situations it may be of advantage to apply different settings for decrease / raise control situations.