bridgeport conversion 5i25, 7i76 and gecko 203v

On the G203V, common (pin 10) connects to the 7I76 step/dir Ground (the G203V inputs are active high)
The + step output must be used (because the G203V timing is referred to the step pulse rising edge).
You can chose either DIR signal (though this will change motor direction)

Thanks that did the trick. I am working on the limit switches now (seems to be going good). I really appreciate the help it feels like I am getting somewhere now.

Okay, I have the mill moving, limit and home switches wired in, and the estop wired in. Now I am struggling with the spindle control through the frequency drive.

The drive has five pins:
1. External frequency reference 1:0....10v
2. Analog input circuit common
3. Reference voltage 10 V DC
4. Stop/Start
5. Fwd/Rev

I have tried several different ways of connecting this to TB4 on the 7i76 and am not having any success. Will someone let me know the correct wiring to the 7i76 from these five pins on the freq. drive. Then if it is still not working I can contact ABB for support on setting up the drive for external control (I think I have it right on the drive but anything is possible).

Thanks

1. External frequency reference 1:0....10v -->TB4 pin 2
2. Analog input circuit common --> TB4 pin 1
3. Reference voltage 10 V DC --> TB4 pin 3
4. Stop/Start
5. Fwd/Rev

To know how to connect the last 2 pins requires a drive manual,
can you include a link to the manual?

Here is the link, on page # 74 it shows the pins for use with the ABB Standard Macro, which is the configuration I am using.

www05.abb.com/global/scot/scot201.nsf/ve...M_G_A4_ScreenRes.pdf


Thanks

Drive pin2 (AI1) --> 7I76 TB4 pin 2
Drive pin3 (AGND)--> 7I76 TB4 pin 1
Drive pin4 -(+10V) -> 7I76 TB4 pin3
Drive pin10 (24V AUX) --> 7I76 TB4 pin 6 and pin 8 (ENA+ and DIR+)
Drive pin11 (AUX GND) --> Drive pin 12 (digital input common)
Drive pin13 --> 7I76 TB4 pin 5 (ENA-)
Drive pin14 --> 7I76 TB4 pin 7 (DIR-)

PCW wrote:

Drive pin2 (AI1) --> 7I76 TB4 pin 2
Drive pin3 (AGND)--> 7I76 TB4 pin 1
Drive pin4 -(+10V) -> 7I76 TB4 pin3
Drive pin10 (24V AUX) --> 7I76 TB4 pin 6 and pin 8 (ENA+ and DIR+)
Drive pin11 (AUX GND) --> Drive pin 12 (digital input common)
Drive pin13 --> 7I76 TB4 pin 5 (ENA-)
Drive pin14 --> 7I76 TB4 pin 7 (DIR-)

Thank you so much, that is going the extra mile. I will be able to connect these tomorrow.

Okay, I have the spindle drive wired as directed and most things work with one exception; the speed control only seems to have two settings when I select the + or -. It runs at 60Hz when I hit the + and then at 6Hz when I hit the - button in Axis. The Spindle override does work but does not have an effect until it is down around 3%. I used the hal meter (this is very new to me) and looking at signal "spindle-vel-cmd" it reads 1 when going slow and 101 when going fast. I am going to put an encoder on the spindle but I don't have one on yet, I don't know if this could be part of the problem.

How do I set it up so that I can control the spindle speed?

You will need to set the scale of the 7I76 spindle output so that
its full scale output matches your VFDs full scale RPM

I was able to go into the hal file and correct the spindle direction but I am still having a problem with spindle speed in the ccw direction. It is running inverse of what is commanded, s1500 gives an actual speed of about 300rpm and s300 gives about 1500rpm's. I have looked at the input to the frequency drive from the 7i76 and can see that it is the correct voltage for the actual speed the spindle is turning i.e. full rpm ccw = 10v.

What do I change in my hal file to get the speed control working correctly for ccw?