[tgorsuch]

I am getting ready to order two three phase motors and VFDS for my shoptask and would appricate your help. I am going to order one hp 1700 rpm with .875 shaft. I am not sure what mounting I need to spec. I am planning on using Teco N3 or FM50 vfd. Anyone have any thoughts on where to purchase? Is there anything else I need to specify when Ordering? Is there a specific motor that would be best?
Thank you for your help!
Tgorsuch

[smallblock]

There are lots of options out there if you are willing to sort through the combinations etc. Shoptask has a ready made kit as well.
ST 111 VFD upgrade for all machines 1990-2009 - SHOPMASTER

[tgorsuch]

Thanks Smallblock, they don't seem to give you much info on what's in the kit other than two motors and a controller. I like to build things diy. I just need o know if I am getting the right motor as there are so many different motors. I am thinking a general purpose 3 phase, I don't think capacitor start, the mounting I am unsure about but I guess I will figure it out .
Thanks terry

[smallblock]

Terry,
The Shoptask set has all that stuff figured out for you and is also designed so that you can integrate the CNC with it for mach 3 control of spindles and do threading, tapping etc. For the DIY guys, you can find motors, switches, contactors etc at Surplus Center, and inverters on E-bay- you just need to match them for Delta or Star configuration as well as rpm and HP. Mounting frame and shaft size will vary.

[tgorsuch]

Thanks again small block, I went to the web site and it does look good would be a lot quicker and easer. I didn't find a lot of info. I did a lot of searching would like to hear form someone who has used this upgrade and maybe see some pictures.
Terry

[tgorsuch]

What do you mean with matching either delta or star? It has been mentioned in anything I have seen or read?
Terry

[instructor37]

Delta and Star are 2 different ways that the motors are wound. In general, the Star configuration draws less current at startup, while Delta offers a broader range of torque throughout the rpm range. It's more complex than that, but that's my understanding in a nutshell. Shopmaster uses the Delta configuration on their machines. Here is a link that gives more details.
IET Forums - Delta vs Star