OK looks like your inverter take 0 to 10V for speed control so any of the speed controllers sold by the usual suspects should do fine. I have no experiecnce of using any of them so hopefully some of the guys that do will come in and give the opinions of the ones they use. I know Peter Homanns digispeeds get a good name so I will see if I can get him to give you a bit of info regarding his product.
Hood
Edit, I have attached the VFD manual if anyone wants to look through it.
Hi Hood, Martyn,
I have looked through the VFD manual and yes, the range of DigiSpeeds should have no problem controlling the VFD. I'd suggest using the DigiSpeed DC-06 with the on board DC/DC conveter.
http://homanndesigns.com/store/index.php?main_page=product_info&cPath=1&products_id=39Even though the VFD can supply the 10Vdc reference voltage, the speed controllers require about a volt for it's own use, meaning that you end up with a slightly reduced maximum speed. The DC/DC converter elliminates this.
The DC-06 takes the spindle axis step/dir signal and converts it to an isolated analog value. It also has a couple of small relays, ideal for switching the control inputs on a VFD. These are normall used for direction cotrol, brake, enable, etc.
If you have any more questions let me know.
Cheers,
Peter