Quote Originally Posted by rjsutton View Post
so your comment between 1&4 is wrong?
Apologies - I can't believe what rubbish I wrote. The intent was to remove a previous reply (hence the "ignore this post"), with a possible follow-on solution. But that was as clear as mud, I read that now.

In any case, having looked at all similar images of similar PWM controllers, in each case the Bat-/Mot- and Bat+/Mot+ pins are non-common. Question: Are you comfortable that the joystick can handle the start-up current of the motor? As you've drawn the schematic you're depending upon that behaviour. If so, there might be options, but may include a couple of diodes (and if not, an additional relay). The main thought process I have is to provide the PWM output via the change-over relay potentially with a third relay to isolate the motor if neither direction is demanded. If you're prepared for a third relay I can sketch something.