Rookie Problem - No DC Output to SSD???

Stephen Barton

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Nov 20, 2021, 5:38:59 PM11/20/21

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I am replacing two controlers that control two heaters with one PID controller. I have everything wired correctly, but I don't get any output from the DC connectors on the controller.

I thought this was a defective unit, but I pulled a similar controller (Mypin brand AT series) from another piece of equipment, set it up the same, and I get the same results. No DC power when the Output light shows On.

I have run through all the settings and can't find one to control the DC output. I'm at a loss and need the equipment up and running on Monday. I am in PID mode, P is set at 250, I and D are set to Off.

Any suggestions? I'm sure it is user error.

Pieter S

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Nov 20, 2021, 8:20:47 PM11/20/21

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Hi Stephen

Care to share your wiring diagram with us?

According to this you need to supply external AC or DC supply? the ALI and OUT1 are NO/NC floating so you need to supply external control power and relay/ssr to switch high power.

further:

OUT1: Heating/Main control output lamp

On: Output Off: No output

Best to contact local electrician/suppliers of these units.

Regards,

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Stephen Barton

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Nov 22, 2021, 10:21:31 AM11/22/21

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1 & 2 110 v + and -

3 & 4 DC output to SSD

7 & 8 Thermocouple Input

On the SSR I have 110 v + going into the #1 connection then the #2 connection goes to my heaters. The DC output from the controller goes to the 3 & 4 connections on the SSR.

PIcture of the diagram from the controller is below.

The SSD requries 3-32 VDC input to operate. I'm measuring only 1 volt of output from the controller.

Rakesh Patel

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Nov 23, 2021, 8:41:14 AM11/23/21

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Hi Stephen,

Make sure which model you have selected.

If you have selected the current output model it will give 1V.

You can check the OUT2 also for SSR logic.. check both OUT1 and OUT2 ?

Heater should be controlled using varying time pulse by changing the ON/OFF time and keeping the voltage constant

Below is the datasheet of controller.

https://manuals.plus/m/cffa17665dca3a5f77e5046ddcb15b383477c8d02e6b4283334dc7a0fd33d25f_optim.pdf

Thanks

Rakesh Patel

Schlappo22

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May 1, 2023, 5:52:52 AM5/1/23

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Hey,

not sure if it helps and what controller you use.

I am using an Arduino Mega. In order to control the SSR you will need to use one of the interrupt Pins on the controller (not all pins have that capability)