I read this thread with interest as it is exactly what I'm trying to do.I have 1 12vdc timer 2 external limits & a dpdt relay.I have everything operating but can't reverse the polarity.I have wired as follows: power from timer goes to top limit NC then to 3 Earth from timer goes to Bottom limit NO then to 7
5 bridges to 2 & onto motor 6 bridges to 1 then on to motor 4 goes to earth as does 8 There is a diode between wires to 7 & 3 to prevent backflow.
It works ok, but I can't discover how to reverse polarity between cycles.my idea was for the relay to be energised between cycles.Can anyone suggest where I have stuffed up
Thanks Brian
5 bridges to 2 & onto motor 6 bridges to 1 then on to motor 4 goes to earth as does 8 There is a diode between wires to 7 & 3 to prevent backflow.
It works ok, but I can't discover how to reverse polarity between cycles.my idea was for the relay to be energised between cycles.Can anyone suggest where I have stuffed up
Thanks Brian