Mesa 7i76E and NKS E3000C Spindle Wiring Configuration Help

Ok Ill give that a try. Thanks for the insight ! At the end of all this Ill create some official documentation !

That worked ! Thanks again Ill post a PDF of the config later tonight !

PCW wrote:

I would say:

+24V --> Drive 1
7I76E DIR+ --> Drive 2
7I76E DIR- --> 24V GND
7I76E ENA+ --> Drive 14
7I76E ENA- --> 24V GND
 

Hey PCW, I have this same E3000c driver with a 7i76, so I have this same issue. I have all the driver inputs connected to regular outputs on the 7i76, with 24v GND --> Drive 1

Will I still be able to use the other pins if I change to +24?

I am also having issues with the wiring of the encoder index,( and the analog feedback)

Any suggestions on where/how I can wire this (fig 30) to a 7i76?
Its 24v so Im having a hard time wiring it up and getting the correct reading.
 

Yes, you can use the ENA and DIR OPTO outputs if you change
the drives input common to +24V (if that's what you meant)

Are you saying that the index output is an open collector output
like that shown in Fig. 30? It should be possible to use that outpu
with the encoder index input if that input is jumpered for TTL mode.

PCW wrote:

Yes, you can use the ENA and DIR OPTO outputs if you change
the drives input common to +24V (if that's what you meant)

I have all the other driver inputs connected to the 7i76 outputs, like alarm reset and stuff, all connected with a common GND. So Im wondering if I change common to 24v+, will I still be able to use the other driver inputs?

PCW wrote:

Are you saying that the index output is an open collector output
like that shown in Fig. 30? It should be possible to use that outpu
with the encoder index input if that input is jumpered for TTL mode.

Yeah, its not really an encoder, but "rotating pulse" output pin from the driver. This issue is that it is 24v pin, so I dont know if I can do it.

I am having a lot of trouble with almost every pin, even though it looks straight forward.

No, the inputs need a 0V common if you are driving them with 7I76 field outputs

If the rotating pulse output is like those shown in figure 30 you
should be able to connect it directly to the 7I76 encoder index input
(its an open collector output, no 24V involved)
You would need to connect the drives output 0V pin (18) to the 7I76 encoder ground
and jumper the encoder index input for TTL mode (the encoder inputs have a built in
2K pullup to 5V so will work with open collector drivers)