2017 Jul 05, 11:39 PM
(2017 Jul 05, 08:24 PM)dan Wrote: The 3 power supply configuration would be better.
Did you include the 10K ohm pull up resistor on the shift register circuit? That was added recently to the circuit diagram and it helps prevent all the relays from switching on during power up.
I did add the 10k ohm resistor, and that helped the power to all relays on start up issue.
I am assuming the ALL relays on the issue is what is burning up the transformers in the power supply since they are all drawing too much power at the solenoids. I'm also thinking about adding a fuse to prevent further burned power supplies!
I am going to re-do my little circuit with simpler wiring to see if that makes any difference...
Thanks for the help!