Thanks for the input Russ - having it explained in English with correct syntax helps a lot. Pics of the driver and motor below as requested.
I believe from your description its the 'standard' version.
I had some input from the seller apologising for no included manual but gave me a steer on getting the thing actually rotating - which it does,
but its a 'process' and speed increments by 1rpm steps so zero - 3000rpm is PAINFULLY slow LOL! And reverse is just back to zero and keep
going to minus numbers ! And quick stops - well yet to be discovered!
Given your explanation I should understand but I just see words
I'm more of a graphical understanding type ie. back of an envelope type sketch i'll understand
and can work from. I didn't understand the Pin 2 through Pin 5 above as my electrical logic goes as far as + is positive / live and - is ground / earth !
Ian