Apex UV pump and lamp coding check please.

[Oberst Hajj]

I would like to setup my UV Lamp to only run when the temp is below 80°, the MANIFOLD pump is running and the flow reading for Fx5_4 is greater than 225. I have this code programed into the UV_Lamp:


Fallback OFF
Set OFF
If Tmp > 81.0 Then OFF
If Output Manifold = OFF Then OFF
If FLx5_4 < 225 Then OFF
If Output ReturnPumpA = OFF Then OFF
Defer 001:00 Then ON
If Output ReturnPumpB = OFF Then OFF
Defer 003:00 Then ON

For the manifold pump, I have this code:

Fallback ON
Set ON
If Output ReturnPumpA = OFF Then OFF
If Output ReturnPumpB = OFF Then OFF
Defer 001:00 Then ON

I'd be thankful to anyone that could double check that code for me. I'm thinking I have something in the wrong order for the UV Lamp.

 

[SuncrestReef]

Your code doesn’t have any command to turn the UV on. This should work:


Fallback OFF
Set ON
If Tmp > 79.9 Then OFF
If Output Manifold = OFF Then OFF
If FLx5_4 < 225 Then OFF
Defer 001:00 Then ON

Also, you can’t use multiple Defer ON timers. Defer is only applied after all the conditions are evaluated. It’s basically a global option on the output. I put this illustration together to better explain it:


See my tutorial on Apex Timers for more details:

Neptune Apex Programming Tutorials, Part 2: Timers

Part 2 of a series on learning how to program your Neptune Apex. Today's article is all about timers: OSC, If Time, DOW, Defer, When, and Min Time.

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