Issue
There is no designated configuration setting to monitor fan run indication with a TAC Xenta 102-AX controller.
Environment
- TAC Xenta 102-AX Plug-in
- Workstation
Cause
The Xenta 102-AX controller does not have a configuration option to monitor fan run indication. This can be achieved by using a universal input and converting the raw value to run indication.
Resolution
These configuration steps can also be done through Vista Workstation, just make note of the configuration point names and locations in parenthesis.
Setting Up Fan Run Indication on a Xenta 102-AX
- Open up the TAC Xenta 102-AX Plug-in of the controller that will be monitoring fan run indication.
- Click on the Hardware Configuration tab. Any one of the universal inputs may be used to monitor fan run indication but Input 1 will be used in this example.
-
Change Input 1 Selection to Universal Input (UnivIn1_Sense > UCPTselectUI).
-
Click on the Status tab. Notice that the percent value of Universal Input #1 (nvoUnvInput1) is at 99.90%. This value may vary but when the fan is not running it will be near 100%.
- Override the space temperature so that the fan powered VAV box goes into heating (if using a parallel fan) or make sure the series fan is running.
-
Notice that the value of Universal Input #1 dropped to 0.00%. Again this value may vary but it will be near 0.00%.
- This percent value is sent out of the Xenta 102-AX controller on nvoUnvInput1. In order to display this value in a binary state it will need to be converted using Menta or in a graphic page.
