Thanks Tweakie.
I finally got the folks I bought the machine from to help me. I selected US Mode on the C41. V-IN connected together and connect these to VFD terminal DCM (digital common) then relay #1 terminal NO to VFD terminal FWD and relay #2 terminal NO to VFD terminal REV. I then changed a couple of VFD parameters.
It seems to work! I can't get too excited yet. But, this is progress...
Don
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