pol.cp03 Posted April 26, 2023 Report Share Posted April 26, 2023 Hi, I am trying to set up an electric water pump by the Davies Craig method and I am not able to get it to work. Could someone tell me what is wrong with my configuration and why is it always on? Thank you very much. DYN-07_BaseMap.pclx Registro en PC - 2023-04-22 6_39_32 pm.llgx Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 26, 2023 Report Share Posted April 26, 2023 I see a few things wrong there. Can you confirm how you want it to work - I assume maybe something like this?: Engine running, ECT <50 = 10s on, 30s off. ECT between 50 & 80 = 5s on, 5s off. ECT > 80 = ON all the time. Timers will always start at 0 at power up so GP output 1 will always be true at power up. Timers are always 0 at power up so GP output 3 would always be true at power up. I would invert this logic. I think your GP 3 conditions is possibly meant to be looking at timer 2, not timer 1 and temp should be >50 rather than >80? I will give an example once you explain how you want it to work. Quote Link to comment Share on other sites More sharing options...
pol.cp03 Posted April 26, 2023 Author Report Share Posted April 26, 2023 15 minutes ago, Adamw said: I see a few things wrong there. Can you confirm how you want it to work - I assume maybe something like this?: Engine running, ECT <50 = 10s on, 30s off. ECT between 50 & 80 = 5s on, 5s off. ECT > 80 = ON all the time. Timers will always start at 0 at power up so GP output 1 will always be true at power up. Timers are always 0 at power up so GP output 3 would always be true at power up. I would invert this logic. I think your GP 3 conditions is possibly meant to be looking at timer 2, not timer 1 and temp should be >50 rather than >80? I will give an example once you explain how you want it to work. Yes, that's exactly how I want it to work. If you can make the example better because it's a bit confusing. Thanks Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 27, 2023 Report Share Posted April 27, 2023 Ok, try this. DYN-07_BaseMap V2.pclx Quote Link to comment Share on other sites More sharing options...
pol.cp03 Posted April 29, 2023 Author Report Share Posted April 29, 2023 On 4/27/2023 at 3:52 AM, Adamw said: Ok, try this. DYN-07_BaseMap V2.pclx 471.64 kB · 2 downloads It works perfectly thanks Adam Quote Link to comment Share on other sites More sharing options...
Steve Bull Posted April 29, 2023 Report Share Posted April 29, 2023 With my EWP it needed 8v for it to work. So I also set PWM so it was getting 8v until around 75 c then increased to 12v/100% @ 88 c. Having it running at full power isnt needed as it will take too long to warm up. I found that mine worked better on for 3 off for 6 seconds and then on for 6 and off for 3 seconds, until it was 65 c. Quote Link to comment Share on other sites More sharing options...
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