2.2kw spindle set up

[John S]

Martin.
It has nothing to do with air cooled or water cooled only the make of the inverter.
I can't comment on what gets set first, those instructions I posted came off CNC zone on a rather long thread about getting these running and it seemed to be the concencus that they worked.

I do have a couple of the Chinese ones here but boxed up and not fitted to anything. The ones I am using are IMO's which only date back to when we used to fit them on a range of machines we used to make and totally different on parameters.

If you fine PD013 has to work this way can you post it and I'll amment my text file as I often give it out.
So far no one has queried it but then again just because you publish something you don't know if anyone follows thru.

[Jonathan]

There is a difference between the settings for a water cooled and air cooled spindle. If it's air cooled you should limit the minimum frequency to 120Hz (i.e. PD11=13) since if operated below that the airflow wouldn't be sufficient to cool the spindle. For the water cooled spindle you can set this to as low as you want, since the cooling effect of the water is the same regardless of speed. The spindle torque is practically zero below 3000rpm, so I recommend setting it to 50hz. None of the other settings need be different for the water vs air cooled spindle.

The settings John S posted look like they're for a 1.5kW VFD and spindle, since it says the current 'only goes up to 7 amps', but the 2.2kW version VFD allows much more. The eBay listings say to set this (PD142) to 8.5A.

I've put the English manual here, since if you look at the list of settings it's pretty obvious what the important ones do.

[Tenson]

For the water cooled spindle you can set this to as low as you want, since the cooling effect of the water is the same regardless of speed. The spindle torque is practically zero below 3000rpm, so I recommend setting it to 50hz. .

Thanks for saying that, I had wondered about going lower than 100Hz but was a bit scared to burn out the coils. :)