T3000 Educational Trainer

[maurice]

Here’s our first crack at the demo board. I will get a sample off to you for some closeup feedback. I know we need more space for some labels & graphics. Maybe a stand of some sort.

When you have something to share on the lesson document that goes with this I have a friend in Korea who is keen to get started.

[AA-Ron]

Wow! I love the Inputs and the voltage output displays…

[AA-Ron]

So 5 inputs we can make outside air, room temp, setpoint, supply air temp and co2?

[maurice]

Step one of any project to enter a name and range for each of the sensors wired into the system. Give each input a long 20 char name at Tab1 and a short name used for the programming at Tab2. Then set the range for each of the sensors. Since this project uses pots to simulate the readings, and your pots are probably different that what we used here you will need to tweak the range using custom tables. You can read how to do that here:

Custom analog inputs

Here’s some screenshots showing how to configure transducers in general. From the inputs table, click in the range column at Tab1 to bring up the range setting dialog with the various sensor types available and select ‘Custom Range’ 50 at Tab2 which brings up another dialog where you set up the signal table. At Tab4 you see the settings to plug in for a typical 4-20ma or 0-10V transducer at the minimum and maximum range of the sensor. You can also type in the engineering units at Tab5. Finally…

[AA-Ron]

I haven’t figured out which potentiometer to use with 10v to do 0-10v input yet but to simulate 10k thermistor, a 100k pot in series with 5k resistor works perfect for a range somewhere around 0-100degF

[Temco_Spring]

How to use AO to test AI 0-10V ？

1. Download and install T3000 on your PC ,link T3-Controller & PC to the same local network , run

T3000->Discover to get T3-Controller under local network in T3000 .

T3000 download address :

https://temcocontrols.com/ftp/software/09T3000Software.zip

2.Basic function of AIs and AO

AIs

AI1: connect to ON/OFF switch , Simulate occupied sensor .

AI2–6: wired to 4.7K fixed resistor and 100K potentiometer .

Simulate 4.7K—104.7K devices .

AI7–11: Universal input which can be set as 10K thermistor ,0-5V,0-10V and 4-20mA .

AOs

Output 0-10V voltage

3. Wired AO5 to AI11, set AO5 & AI11 range as 0-10V ,output a fixed voltage to test AI .
   T3000->Outputs->Output11 , Output11 is AO5 .
   
   

Output11 is AO5 , the setting is shown .

Auto/manual : Manual

HOA Switch : AUTO

Value : 5.00

Range: 0–10V

T3000->Inputs->IN11 ,

Auto/manual : Auto

Range: 0–10V

The value of AI11 is 5.05 V ,which can correctly measure AO’s voltage .

[Temco_Spring]

How to set your AI custom range table ?

1. Circuit diagram
   
2. Adjust voltage from 0.95v to 2.7V, click T3-Controller and build your custom range table . T3000-> inputs ->custom range
   
   
   
   Supply temp, Setpoint and Room temp: 40F to 90F ,
   0.95v & 2.7v corresponds to the 90F & 40F .
   
   
3. Table 3 applied to Supply temp, Setpoint and Room temp .
   
   

[davidsteinberg.addc]

Love the PC Board Concept! Keeps things very tidy and easy to work with! Great Work!

[maurice]

Let’s get back to the lesson documentation that goes along with that. Post whatever you can and I will get this new demo off to you.

[AA-Ron]

Here are 2 videos I made at school with the T3000 Demo. I can use everyone’s feedback so I can get better at programming and my projects can get more elaborate. The idea of these projects is for students to start simple and learn the inputs and outputs as well as basic programming.

Temco T3000 Demo 1

TEMCO T3000 Demo 1 Oil Furnace Warehouse freeze protect heat program in control basic

[maurice]

I like where things are heading Ron. Keep going with it.