Connecting Delta spindle drive with Fanuc 0i-MD control

[Harmeet]

Hi,
I want to connect a delta inverter drive with Fanuc 0i-MD control....
I have already connected the drive and it is working for Forward, Reverse and Stop commands(MO3, M04 and M05) which is given to the drive as a output address Y0.0, Y0.1, Y0.2. Now i am not able to control the speed through the NC control. How to interface the drive with the control for speed control.
Please help....

[Harmeet]

Nobody here knows the solution for this....????