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Hi Bradders,

I didn't get the manual actually, but I think I have solved the Lenze drive problem.
There is a wiring diagram in the Triac ATC manual (this is in the downloads section and may be the one you were going to point me to anyway).
The Lenze drive appears to be 240v controlled by 3 wires ...

I'm refitting a 1990 Triac with Mach 3. I'm looking to fit Rutex drives on frame 23 size servo's - using a Bob Campbell breakout board and Peter Homann ModIO to drive the ATC.

My first problem I've run in to is that I'm trying to wire up the Lenze spindle drive (VFD) to the 0-10v analog output on ...

That's really quick - I'm not used to these acceleration speeds as I deal with lathes and hefty chucks!

I'm ordering components now. I couldn't get the E240 motors from Rory but found a link to a guy in Holland with 20 - 30 of them left so trying to get them from him.

I've decided on the Bob ...

...also, I've looked arund for the Electro Craft E240 motors without success - seems like Electro Craft may have discontinued, is there an alternative readily available that you have come across?
Are these approximately nema 23 frame size?

John

Thanks for the quick reply Col,

Before I sink into cnc conversion bliss for the next 3 weeks can you tell me about the VFD spindle control. Is it the standard Triac spindle drive system or an add-on system - if so, what type.
Do the 2 relays give fwd/rev and therefore is there a delay between ...

Hi Col,

I've been looking at your Triac conversion with great interest - the rapids are just awesome!

I've just bought a Traic with ATC from the US and looking to convert to sevo's. I've no previous servo experience - but have converted a Boxford 250 lathe to EaziCNC system with chinese stepper ...