BuildSysPro.IBPSA.Fluid.Actuators.BaseClasses.ActuatorSignal

# .BuildSysPro.IBPSA.Fluid.Actuators.BaseClasses.ActuatorSignal

Partial model that implements the filtered opening for valves and dampers

## Information

This model implements the filter that is used to approximate the travel time of the actuator. Models that extend this model use the signal `y_actual` to obtain the current position of the actuator.

See IBPSA.Fluid.Actuators.UsersGuide for a description of the filter.

## Revisions

- June 10, 2021, by Michael Wetter:
  Changed implementation of the filter and changed the parameter `order` to a constant as most users need not change this value.
  This is for #1498.
- April 6, 2020, by Antoine Gautier:
  Add the boolean parameter `casePreInd`.
  This is needed for the computation of the damper opening in IBPSA.Fluid.Actuators.Dampers.PressureIndependent.
- February 21, 2020, by Michael Wetter:
  Changed icon to display its operating state.
  This is for #1294.
- November 14, 2019, by Michael Wetter:
  Set `start` attribute for `filter.x`.
  This is for #1252.
- October 25, 2019, by Jianjun Hu:
  Improved icon graphics annotation. This is for #1225.
- February 16, 2018, by Filip Jorissen:
  Propagated parameter `order`.
  This is for #891.
- March 24, 2017, by Michael Wetter:
  Renamed `filteredInput` to `use_inputFilter`.
  This is for #665.
- February 14, 2012 by Michael Wetter:
  First implementation.

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