VFD upgrade

[paulus.v]

Thank you Eddy,

Being able to run at low speeds sounds very useful.
Interesting point with the sanding drums but I cannot imagine running on CNC. How do you calculate/apply the sanding load. I can imagine a specially designed spindle mount fitted with springs or something.

Still trying to find the ABB inverter locally. So far I found the LG IC5. It has the vector mode but I found this in the manual:

F21 - This parameter sets the highest frequency the inverter can output. If H40 is set to 3(Sensorless vector), it can be settable up to 300Hz *.

If I'l get the ABB ACS355 could you provide me all the settings to have it working?

I also found the Schneider Altivar 12. Any thoughts about the LG and Altivar?

[EddyCurrent]

Used like this only the sanding drum is held from above in the spindle collet, Z moves up and down.

http://www.axminster.co.uk/jet-jbos-...FSuWtAodRyMAxg

Regarding settings for ABB, one of the main problems was getting the right technical data about the spindle motor, your spindle is not the same as mine so the settings I have will not be exact and I could not say for sure they would work. see here; http://www.mycncuk.com/threads/6565-...4303#post54303

Schneider Altivar is good stuff, used a lot in industry, you won't go wrong with those, don't know about LG.

[paulus.v]

Now I get the sanding use.

I thought you have the 2.2kw chinese spindle.

I'm waiting for a price for the Altivar inverter. I think Schneider will it be.

Has anyone here experience setting up the Schneider Altivar 12 with the chinese 2.2kw spindle and Mach3?