Setting up the override value to show the damper feedback on an i2/B3 866-V

[Product_Support]

Issue

Setting up the override value to show the damper feedback on an i2/B3 866-v

Product Line

Andover Continuum, EcoStruxure Building Operation

Environment

• i2/B3 866-V
• Plain English
• Script

Cause

Activate the damper position feature in the 866-V.

Resolution

SBO: See this video on creating a program that calculates damper feedback position. 

Also reference the article How to show damper feedback for an i2/b3 866-V which describes what needs to be done to show damper position and calibrate the damper. Sample objects, code and images showing configuration are supplied.

Continuum: There is a description in the 866-V installation manual on how to activate the damper position feature, but there are some additional pieces of information that this article has been created to address. This was initially to just get the feature working as mentioned in the next section below.

1. Getting the damper feedback operational:
   Once the end stops are determined initially during the Learn process, the controller can then determine the position of the damper.
   1. Create a PE program to set the DamperOutput LCDState = Disabled and back to Enabled in the next line. This will run through its stroke to determine the end stops.
      

      ‘Example program named "damperstate"
      Fall thru, auto start
      ‘a 2 line program to initialize the stops
      
      Line 1
      Set damper LCDstate to disabled
      goto 2
      
      Line 2
      Set damper LCDstate to enabled
      stop

      To run from the command line Run damperstate
      Note that the Feedback will not start working until the Damper has gone full stroke in both directions. This will take several minutes.
   2. Set the damper point to on or –on depending on the position so it will move
   3. Print Damper OverrideValue from a command line or display it on a listview of the damper output after adding the overridevalue column
2. Self Calibration - The LCDState toggle actually activates the "self calibrate" process. It doesn't just enable the feature. It is necessary to know this because you will need to activate the self calibration again whenever the damper is manually moved using the red actuator clutch release button. Using the clutch can cause the damper position to be reported incorrectly. Periodic re-calibration should be as a part of normal procedure for the controller. Once the clutch is used, the damper position will still report, but the value may be incorrect.
3. Re-calibrate recommendation- Use a PE program that recalibrates the damper (i.e. LCDState as mentioned in Section A) on manual command by the service technician on a power cycle or at the end of an occupancy period.

Note: For controlling the Damper motor output create an Infinity Output point of type Triac on Channel 1. It can then be opened / Closed like any other Triac output with the use of On, -On or Off commands