01-17-2016, 08:24 PM
Hi Tilman, sorry to hear about the trouble. The way its setup is the 12v from your power supply goes directly to four of the RJ45 pins for the pump, one 12v line for each pump. The grounds for each pump are switched using 4 of the 5 small transistors that are hiding under the mega. If you check the voltage using the ground and hot coming from the dosing pump RJ45 you shouldn't have any voltage unless the controller has the pump running. You can run the pump by pressing manual dose on the dose settings screen.
Check the voltage on the hot lines coming from the RJ45 but use the 6 pin ground header as a ground. If you do have 12v then I think everything is ok, I can't imagine all 4 transistors being bad and you can only mount them one way so I really doubt it was you. Do you have 12v on the connector board marked 12v?
What kind of cable are you using for the pumps? If its cat5 try a different cable, some don't let any voltage through them. I have a 4ft patch cable that won't power up my display, the same thing happens, as soon as there's a load it drops. I was quite surprised by that as I'm using 25ft of nothing special with no problems but that 4ft just won't work.
EDIT: Oh and I just remembered, in the power bar sketch did you change the board version to 1? I have it set to 2 but I believe you have the original boards so it needs to be changed. That's on line 20 of the sketch. This changes a couple of the pumps pin outs.
Check the voltage on the hot lines coming from the RJ45 but use the 6 pin ground header as a ground. If you do have 12v then I think everything is ok, I can't imagine all 4 transistors being bad and you can only mount them one way so I really doubt it was you. Do you have 12v on the connector board marked 12v?
What kind of cable are you using for the pumps? If its cat5 try a different cable, some don't let any voltage through them. I have a 4ft patch cable that won't power up my display, the same thing happens, as soon as there's a load it drops. I was quite surprised by that as I'm using 25ft of nothing special with no problems but that 4ft just won't work.
EDIT: Oh and I just remembered, in the power bar sketch did you change the board version to 1? I have it set to 2 but I believe you have the original boards so it needs to be changed. That's on line 20 of the sketch. This changes a couple of the pumps pin outs.
