Denford Cyclone -turret positioning error

[m_c]

I've got no idea about how the control cabinet is laid out on a Fanuc machine, but wherever the power comes into the machine, just swap any two of the three phases around.
However, what do you mean by 4 terminals?
Do you mean 3P+E (4 conductors), or 3P+N+E (5 conductors)?

If the machine does use Neutral, then you must make sure you don't move it, otherwise you'll end up with 415V where there should only be 240V. I don't think Denford used Neutral in any 3 phase machine though.

I would tell you what colours to look for, but the standard colours changed a few years ago, so Neutral can be Blue (new) or Black (old), but blue is used for a phase colour in the old colours, and black in the new colours.
I've attached a diagram of the colours, so you should be able to identify what you've got. Internally the 3phase wiring will most likely be all blue or black, but any external wiring should meet the relevant colour standard, which should be the old colours, but if it's been replaced, it may be the new colours.