I'd second that, for my sample of 1 project. LOL!
It's a Sumitomo VFD, (I'm very impressed w/ it and Sumitomo's support - I think I'll get a couple more for my Lathe & Mill ) Anyway, the drive is 7.5kW, the switching frequency defaults at 5kHz, and allows up to 15kHz. At 5 kHz the noise is very noticable & annoying. At 15 kHz it's mostly noticable only at startup. There are two small fans for the control, and the heatsink/fans are a little under 1/2 of what's in the VFD box.
- E*clipse