I am trying to get my osPID up and running, but I'm not finding any power coming out of the relay. Can anyone help me troubleshoot this?
Here is what I have done so far:
- Built the machine according to the getting started guide http://www.ospid.com/blog/resources/getting-started/.
- I upgraded the firmware and connected to the machine via the osPID FrontEnd.
- I installed a K type thermocouple into the input of the machine. I can see this is working through the osPID FrontEnd
- I installed a power cord into the Relay2 output on the machine. I see no power on the leads, so this part is not working.
When I plug in the osPID into the USB or the power outlet, I hear the relay 2 clicking on and off every second or two. It's very regular, on, off, on, off. When I run my volt-meter on the outputs of the Relay2, I see no voltage at all. So the relay seems to be functioning - in that it's making noise by clicking on and off, but I'm not getting any power.
I also notice that in the osPID FrontEnd, when I set the setpoint below the current reading on the thermocouple, the relay continues to click on and off every couple of seconds. Presumably, when the thermocouple reads below the setpoint, the osPID should not drive the relay.
Is this a configuration issue? How would you troubleshoot from here?