Huanyang 24v line and tachometer

**Stustoys** · 13th August 2015, 08:54 PM

Looks good.
I have one of Bobs boxes as well! I was thinking about adding a shed of fibro to stiffen things up a little.

What are PD072-75 set to?(I ask I think my manual has them mixed up)
Try
Higher Analog Freq = 90(PD072 in my manual, but I think it should be PD073)
Lower Analog freq = 30(PD073 in my manual, but I think it should be PD072)
Been a long time since I used them

Good luck

Stuart

**Oldneweng** · 13th August 2015, 10:08 PM

I have fitted a multiturn pot so you don't notice what isn't being used. It also allows you to work out settings for different speeds. You can put up a chart and just crank the dial to the right number.

This link shows the type I use, but it is not the right resistance range.

http://www.ebay.com.au/itm/1X3590S-2...item2c761ae1bc

Dean

**BobL** · 13th August 2015, 10:31 PM

Originally Posted by Stustoys

Looks good.
I have one of Bobs boxes as well! I was thinking about adding a shed of fibro to stiffen things up a little.

I used a sheet of 6mm? ally to stiffen up the back and it also helps draw heat away from the heatsink at the rear of the VFD.

30Hz is a bit on the high side for a minimum.
I'm not using it often or continuously but I go as low as 10Hz on my lathe - (mind you that is a vector drive) but you could go down to 20.
I find a really low speed like 5Hz useful to see what is going before I crank it.

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