# Profile Ramp

Navigation: Valve Firmware > Pressure Control > General Settings > # Profile Ramp |

Profile Ramp is a Target Pressure ramp that depends on pressure ranges (segments).

It is mainly used to create soft pumping or soft venting profiles.

To design a profile, the segments (pressure ranges) must be defined

A segment is defined by the pressure Threshold and the Slope.

It is possible to define up to 10 segments.

Segment Nr | Threshold mBar* | Resulting Segment mBar* | Slope mBar*/sec
--- | --- | --- | ---
1 | 1000 | 500 to 1000 | 50
2 | 500 | 200 to 500 | 100
3 | 200 | 0 to 200 | 200

Example: Ramp Profile with 3 segments

Result is a Target Pressure Ramp with different slopes.

See Target Pressure Used, which is the output of the ramp generator.

Parameters:

Parameter | Description
--- | ---
Enable | Switches on/off the function
Threshold Mode | Defines which pressure the threshold refers to
| 0 Actual Pressure | Change happens if Actual Pressure reaches the Threshold
| 1 Target Pressure Used | Change happens if Target Pressure Used reaches the Threshold
Ramp Type | Defines the shape of the ramp in each segment 0 Linear 1 Logarithmic 2 Exponential
Actual Slope | Used slope as the pressure difference per second (mBar*/sec)
Controller Selector Bitmap | Determines which Controller uses the profile ramp. When a Controller is selected, the ramp is no longer used in the controller itself. Therefore the ramp is grayed out in the CPA.
Segment Selector Bitmap | Defines which segment is used for the Profile Ramp.
Segment x Threshold | This is the upper limit of the segment. The lower limit is defined by the next lower Threshold, or the lower limit is 0 if there is no lower Threshold If the Target Pressure is lower than several Thresholds, the lowest one is taken. If the Target Pressure is higher than the highest Threshold, the highest one is taken.
Segment x Slope | Defines the slope (mBar*/sec) in the segment

* Unit adjustable