I'm a bit more confused now, I've just decided to physically have a look at the Spindle and took the Cover off to look at the Wiring Terminals and they aren't like how they show in the Manual.

There are just 8 signal Screw Terminals plus U, V, W Power, and Earth
I also found this online which looks precisely like my set-up

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and here's a pic of my Spindle with the cover removed

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