CNC Mill Motor replacement

Its occured to me that if I want to control the spindle directly in Gcode ill need a new break out board.

My setup is linuxcnc doing the realtime controlling, with a parallel port to a dumb break out board which doesnt have any spindle brake outs. Its a kelingtech c10 breakout board....
 
Looks like that will work fine
 
Because I read the Baldor specs. :) Most of the smaller Baldor motors are rated at 6000 max. I have never run mine above 4500 however.
 
Make sure the VFD that you get is a sensorless vector VFD.
 
This is out of the Chinglish manual:

"9000 series Frequency Inverter is a kind of power converter which adopts the noninductive vector technique and change the running speed of AC asynchronous motor by controlled the output voltage and frequency. It can exactly detect the three-phase output AC signal and the change of phase angle just by current sensor, and correct the frequency automatically by the computing mode of noninductive vector, so that ensure the motor fixed speed when the load changing "

https://www.banggood.com/220V380V-1...82.html?ID=514547&cur_warehouse=CN#customerQA

I know I know its cheap chinese, its all I can justify right now.
 
I'm not sure what that says o_O But in reading the manual, it does seem that it is a sensorless vector VFD.

Wouldn't be my first choice, but when constrained by budget it may be the best choice. If it gets you going for now then it may be a good buy. In the longer term if it doesn't work as well as you would like you can always replace it and not be out much.

This is the VFD that I would buy for your application, but it's 3x the price. I have installed several of the GS2 and GS3 units.
https://www.automationdirect.com/ad...s3_drive_units_(230_-z-_460_vac_svc)/gs3-22p0
 
well the items have been purchased. itll be late december before stuff arrives and I get it working. thanks again for all the help.
 
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