Milling Machine

Guys, I'm still learning about LinuxCNC and it's the first time I'm going to do a Retrofitting of a machine with automatic tool changer, linear scales and Gui Probe Basic.  

This machine will use 7i76E, 7i85 (linear scales) and 7i84 (add I/O), the interface I intend to use Probe Basic.  

My initial question is related to the ATC, which is a 16 position Carousel, I know that it will have several mandatory signals such as: Z axis exchange positioning, open/closed pinch signals, (in this case, ATC goes up/down as well), forwards/backwards ATC, tool position 1, (carousel has normal motor with inverter drive plus brake), still air cone cleaning signal.  

In addition to a suggestion from you which is the best way to apply all this, my main question is related to the tool position signal, I use a gray binary encoder, or I can make a logic, I don't know if it's possible (I think it's more economical viable) like: I turn on the machine , make axes and magazine references (it will position tool 1) and from now on I make tool changes, making a tool count for plus or minus (by pulse on the motor inverter) (choose the closest tool in the sense of rotation) using as a tool counter?  If there is a problem with the exchange, ask for the magazine reference again?  

These are hypotheses, as I have the impression that other CNC controllers such as Mitsubishi, Fanuc use similar systems without encoders….

I have another question regarding the machine… It will have a spindle servo motor (Mitsubishi) with 7.5kw at 15000 rpm and direct Drive with spindle, driven by an 11kw Delta inverter.  How do I need to do automatic tool changes, what type of encoder would I recommend using due to high rotation, as the normal ones would heat up a lot….

Tks

Ingo

Sorry Andy, I honestly didn't understand much of what you wanted to tell me.  This is my engine plate.  I was researching this encoder here in China is it possible?  I also thought when making the change call the M19 can I put low rotation like S100?

So will this manual encoder work?  There will be no mechanical device for the M19, it must be electronic.  This signal in LinuxCNC is what input-index can I check in halscope (halscope>pins>encoder>input-index)?

 

Ah, now I believe I really understand your question….. Yes the machine is a Retrofiting, however it originally had a high and low rpm gearbox, and the maximum rotation was 6000 rpm.  I bought it scrap and it came without the spindle motor, this 15,000 rpm Mitsubishi I already had and I decided to change the entire mechanical project to direct-drive and eliminate all that mess… As it is a small machine with a table size of 800 x550 mm I decided to leave it with more rotation.  That's why the old encoder used for M19 was with a belt and a maximum of 6000 rpm (I tested the signal from the original encoder and it was bad too).