2017 Jul 09, 10:19 PM
So I soldered up a new power distribution board with a fuse block and soldered a new shift register circuit. When testing on the benchtop everything works perfectly. I have three power supplies, two 5vdc to the PI and the relay boards. Then I have the 24vac supply and run through the normally open side of the 16 relays.
For some reason when a program ends, or when I hit the stop all stations button, 4-5 relays will still randomly come on. This only happens when the 24vdc circuit is present.
The bummer is that I added a .75 amp fuse, I burned up a couple during testing. I matched the size from a normal sprinkler controller at 0.75 amps. Apparently, the fuse block I bought was cheap enough it melted and still blew the transformer... *facepalm*.
I need to do some more benchtop testing to see why the 24v circuit causes the whole thing to freak out sometimes... If you have any ideas I am all ears!
Thanks!
For some reason when a program ends, or when I hit the stop all stations button, 4-5 relays will still randomly come on. This only happens when the 24vdc circuit is present.
The bummer is that I added a .75 amp fuse, I burned up a couple during testing. I matched the size from a normal sprinkler controller at 0.75 amps. Apparently, the fuse block I bought was cheap enough it melted and still blew the transformer... *facepalm*.
I need to do some more benchtop testing to see why the 24v circuit causes the whole thing to freak out sometimes... If you have any ideas I am all ears!
Thanks!