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| Need Help Wiring DC Motor with PWM |
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| Alan Haisley:
--- Quote from: snub on June 14, 2016, 08:48:01 PM ---Well, back to the drawing board. I hooked it up as you showed, but still no love. Motor runs at full speed. I tried another PWM with the same result. I even reversed the terminals at 86 and 87 just to be sure. --- End quote --- Where did you get the wiring diagram for the PWM? Have you tried wiring just the power supply, the PWM, and the motor to make sure that you can speed control at all? What does that working diagram look like? Alan |
| seadog:
I've just had a look at the circuit and it occurs to me that you've commoned the battery negative and the motor negative output terminals. Have you metered the these terminals to see if they are electrically common. I've a feeling that they won't be. |
| snub:
Thanks for the help guys, I'm still plugging away at it. 'seadog', I think you're on to something with the way I have the negative terminals commoned. |
| John Rudd:
Snub, See the attached sketch.... Hope this is simple enough for you.. I used a simple changeover switch to energise/de-energise the relays for FWD and REV |
| snub:
Thanks for the sketch, John Rudd, but schematics are my Achilles heal. If someone out there is bored to tears, maybe they could convert it into a diagram like the one in my first post. Also not sure why you wrote "Rev-Not Used" |
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