Quote Originally Posted by Nr1madman View Post
Just wanted to ask, since it might be your schematic.
Why does the enable signal go through two relays? The coil of the enable relay is driven through master relay.. Why not take the enable signal straight to the master relay? ( I've done this temporarily now)

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In all honesty I don't know. It's not something I would normaly do so maybe the OP added it. You certainly will be fine running it thru master relay.

The reason I think it's mine is because there are parts of it like the master relay which I drew and recognise. if you notice there are 6 contacts but it states 4PDT. However there are bits I don't recognise and wouldn't use, like that enable relay, so maybe I've helped someone with basic setup which I often do then they have added to it.?