Connecting my 7i96s to the VFD

Hi Everyone,

I have never setup a CNC machine before, so while I found many other people's posts on similar topics helpful, I'm still not confident enough to try it myself without asking someone if I have it correct. I have a 7i96s board, and I can see that the TB2 PINs 22,23,24 are as follows.

22 - SPINDLE-
23 - SPINDLE OUT
24 - SPINDLE+

And the below image is my VFD's pinout


From this I gather the following

22 - SPINDLE- to COM
23 - SPINDLE OUT to AI1
24 - SPINDLE+ to +10v

Is this correct? I also wanted to know how to control the direction. Thank you for being so helpful.

Gautham

 

For direction, assuming S1 is FWD and S2 is REV:

S1 --> OUT4A 
OUT4B --> COM

S2 --> OUT5A 
OUT5B --> COM
 

Thank you so much PCW and tommy
PCW would that mean I don't connect 22 - SPINDLE- to COM, instead connect OUT4B --> COM and OUT5B --> COM?

They all connect to the VFD COM pin
(Spindle-,Out4b,Out5B --> VFD COM)

Unserstood, thank you