VAV II PID

Configuring Excel 10 VAV II PID

Use the VAV PID page to configure VAV PID values.

Purpose

VAV II application PID settings.

Proportional-Integral-Derivative (PID) values regulate an analog output based on two analog values (one is a controlled variable; the other, a reference variable) and operating parameters. The controlled variable is the variable that should be held constant, for example, a room temperature. The reference variable is the prescribed changeable value of the controlled variable, for example, room temperature setpoint. Define PID (Proportional Integral Derivative) parameters for a VAV II Controller.

Mode

Configuration can be performed with the device On-line or Off-line.

Procedure

  1. Click the PID button on the left pane to open the PID Parameters page.
  2. Enter information into available fields.
  3. Click Commit to save the settings or Reset to revert to the last saved settings.
  4. Click Next to display the Flow Pickup page or Back to display the Control Parameters page.

Fields

Name Definition
Cooling  
Throttling Range Value ranges from 2 through 30 Deg.F (-17 through –1 Deg.C). The Proportional gain value is equivalent to the throttling range.
Integral Action Value ranges from 0 through 5,000 sec
Derivative Action Value ranges from 0-255 sec.
Heating   
Throttling Range Value ranges from 2 through 30 Deg.F (-17 through –1 Deg.C).
Integral Action Value ranges from 0 through 5,000 sec.
Derivative Action Value ranges from 0-255 sec.

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