Zellip Apps by Hackspedia.com - HTML preview

PLEASE NOTE: This is an HTML preview only and some elements such as links or page numbers may be incorrect.
Download the book in PDF, ePub, Kindle for a complete version.

 2.4 ROOM TEMPERATURE REGULATION

Specifications:

The ambient temperature of a room is controlled in the heat mode by a heater and a fan, and in the chill mode only by the fan. A temperature sensor, via a converter, provides a 0-10V signal. A switch is used to deactivate temperature regulation.

Screen display:

The heat or chill mode is displayed

The ambient temperature and setpoint are displayed.

A trigger function is provided to set up regulation that takes into account a hysteresis of +2°C from start to stop and –3°C from stop to start.

Description of the inputs/ouputs:

img30.png

The temperature is supplied by a sensor with output voltage of 0 to 10 V.

Model Required:

Zelio Logic with analog inputs.

SR2 B121 BD (24 V DC) or SR2 B121 JD (12 V DC) for example.

Program Description:

Input I1 =0 : regulation is off.

Display example:

img31.png

InputI1 =1 : Regulation is on.

Display example:

img32.png