Quote Originally Posted by john swift View Post
looking at your photo of the terminals
this is how I would connect to the VFD
with the forward on/off control being BOB's the relay controlled by pin 17
Click image for larger version. 

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yes
the relay switches the VFD on in the forward direction
and is the simplest control with one switch
depending on the parameters set for input X1


you could have 3 switches
one for on / off

a second for forward that works in conjunction with the on /off switch

the 3rd being reverse that works in conjunction with the on /off switch

John
Ha Ha I didn't realise you drew on the photo that makes a lot of sense now, thanks for the info.