Planning - Bridgeport Interact 1 linuxCNC Retrofit

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10 years 9 months ago #68295 by andypugh

cncnoob1979 wrote: I was [/-----/ ]this close to cutting an hdmi cable. But I need to just order some cable. I think I'll just grab some CAT6e cable and test it.


I think that CAT5 will work just fine, but you can buy dedicated encoder cable:

www.rapidonline.com/pdf/604159_da_en_01.pdf

I found some on eBay at a reasonable price.

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10 years 9 months ago - 10 years 9 months ago #68337 by cncnoob1979
image missing http://i346.photobucket.com/albums/p431/swill008/2015-11/0F0204B0-54BA-424F-BC72-4491C437E997_zpsgo5hlmfs.jpg

Ok I'm using cat5 cable for one 702B exe box. But ran into a snag.

The 7i77 pin outs don't match my EXE box. I have these as attached.

The 7i77 is listed with:
QA0
QB0
IDX
GND assuming same as 0volt

My box doesn't seem to need the 5Volt so I'll try omitting it.

But my EXE is;

A0
A1
A2
As
0V

Anyone know where I can read to match up for certain where each go to the 7i77?

I'm not sure what each signal means besides the GND/0V.

Just guessing but I would assume:

A0 -A0
GND-0V
B0-A2
IDX-AS

??

EDIT:

Ok, I can see A & B TTL signals, not sure from which pins, A1 = A phase and A2 = B phase. I believe because I'm not sure what the 7i77 Pin-out is expecting. On the 7i77 I have wired [a0 = QA0], [a1 = QB0] and [a2 = IDX].

I can not see an index pulse from the encoder, so I expect I have this setup wrong. I also have switched around the wiring numerous times, so now I'm not sure how I have it wired now that I'm at work! lol

I really need to know what the 7i77 encoder pin-outs are expecting. I'm thinking this:

Qa0= A phase TTL
Qb0= B phase TTL
IDX= Index pulse

Then I need to figure out what my signals are from my exe box. After work I plan on just connecting each set / one at a time and look at it from HAL scope and see what it produces. As wired at the moment, I can see the TTL signals, but my velocity and encoder position doesn't seem correct.

Position only moves one direction - even when I turn it by hand
Last edit: 10 years 9 months ago by cncnoob1979.

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10 years 9 months ago #68381 by andypugh
Do you have a halscope shot?

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10 years 9 months ago - 10 years 9 months ago #68391 by cncnoob1979
Andy unfortunately not, however I did get my mind more clear from reading this page of the manual.




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So my:
a0 is reference
a1 is Phase A
a2 is Phase B
Uas is Fault monitoring

When I get back home ill re-wire and take a snapshot of the scope, where would you recommend I read to get the concepts down for using the hal scope? I messed with it yesterday but I need to get some basics down, for initial motor tuning and initial encoder testing.

So I need to wire this way?

EXE A1===> 7I77 QA0
EXE A2===> 7I77 QB0
EXE A0===> 7I77 IDX
Last edit: 10 years 9 months ago by cncnoob1979.

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10 years 9 months ago - 10 years 9 months ago #68394 by cncnoob1979
Well now that I know what I'm looking for I found the outputs for the Exe in the manual here:



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ERO 115 Encoder output Pin Layout


Heidenahain 12 Pin Cable Pinout
Last edit: 10 years 9 months ago by cncnoob1979.

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10 years 9 months ago - 10 years 9 months ago #68418 by cncnoob1979


I'm not getting an index signal. Any ideas or suggestions? I'm not even sure I have things setup right!
Last edit: 10 years 9 months ago by cncnoob1979.

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