I had a private message on how I wired the controller to the Hitachi VFD so I figured I would post it.

White pin 7 on cnc controller > H on VFD
Green pin 8 on cnc controller > 1 on VFD
Red pin 9 on cnc controller > 0 on VFD
Black pin 10 on cnc controller > L on VFD

Please double check with a meter. You should be able to see the lines toggle when turning the spindle on/off with Mach3 and see the voltage change with increase/decrease the speed.

For the connector to mount to the spindle control on the CNCRouterParts Controller I purchased the following from Allied Electronics ~$16 with shipping.

Qty. Ordered Stock # Mfr. Part#
1 70083006 206044-1
Connector Housing; CPC Plug Assy; 14 Pos.; Sz. 17; Series 1; Free Hang; Rev Sex

1 70042391 206070-8
CIRCULAR PLASTIC CONNECTORS; CABLE CLAMP; SHELL SIZE 17

5 70042274 1-66099-5
Pin Contact, Type III+, Crimp, Snap-In, 18-16AWG; Loose Piece