Plasma Torch, first try and lots of questions
23 May 2019 19:55 - 23 May 2019 19:59 #134740
by CNCFred
Replied by CNCFred on topic Plasma Torch, first try and lots of questions
All step and direction outputs are buffered 5V signals that can drive 24 mA. All outputs support differential mode to reduce susceptibility to noise. An isolated analog spindle voltage with direction and enable outputs is provided for spindle control as is a single spindle encoder channel with TTL or differential inputs.
Sorry!
Sorry!
Last edit: 23 May 2019 19:59 by CNCFred.
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24 May 2019 05:58 #134779
by pl7i92
Replied by pl7i92 on topic Plasma Torch, first try and lots of questions
The Dm556 will fit perfect to the 7i76e
you are fine with that setup and Hardware configuration
you are fine with that setup and Hardware configuration
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24 May 2019 14:45 #134816
by CNCFred
Replied by CNCFred on topic Plasma Torch, first try and lots of questions
Thank you, all arrived dm556t drivers etc.
Is the enable connected as well? Don't think so?
Is the enable connected as well? Don't think so?
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24 May 2019 17:12 #134831
by rodw
Enable typically disables so there is no need to connect it.Handy if you want to disable drives on estop
Replied by rodw on topic Plasma Torch, first try and lots of questions
Thank you, all arrived dm556t drivers etc.
Is the enable connected as well? Don't think so?
Enable typically disables so there is no need to connect it.Handy if you want to disable drives on estop
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30 Nov 2019 21:06 #151605
by CNCFred
Replied by CNCFred on topic Plasma Torch, first try and lots of questions
Hello after so long.....some updates for you....
I am making progress... Finally found time to start building after collecting all the parts.
Lucky I was that the motors with the precision reduction gears 5:1 made the gantry design easy.
racks are leaning on the left side
An old table was used and shortened. Not knowing what the actual size will be(width) ... I wanted to make the top ready to use it to straighten and set it perpendicular ... Means starting from top to bottom ... Now I am more experienced and can calculate it.
Had to learn fusion 360 and design a view things... Gantry plate...
The rack will be mounted underneath with iron angles which will funktion like spring-loaded. The motor can be turned on the gantry and pressed against it.... Let's see... If it works..
Racks will come here...
3dprinter is great..
Magnet from old Hard disk.. Breakaway protection... Torch holder...limit switch...
Mounted linear rail on Z axis.. Hope gravity is enough to bring the torch down.
Needs shortening...
Started electrical setup...
I still have lots of questions... But wanted to let you know there is an outcome eventually!
Can you give me a link which I can't find anymore how to connect induction switches to my 7i76e.?
Thank you
I am making progress... Finally found time to start building after collecting all the parts.
Lucky I was that the motors with the precision reduction gears 5:1 made the gantry design easy.
racks are leaning on the left side
An old table was used and shortened. Not knowing what the actual size will be(width) ... I wanted to make the top ready to use it to straighten and set it perpendicular ... Means starting from top to bottom ... Now I am more experienced and can calculate it.
Had to learn fusion 360 and design a view things... Gantry plate...
The rack will be mounted underneath with iron angles which will funktion like spring-loaded. The motor can be turned on the gantry and pressed against it.... Let's see... If it works..
Racks will come here...
3dprinter is great..
Magnet from old Hard disk.. Breakaway protection... Torch holder...limit switch...
Mounted linear rail on Z axis.. Hope gravity is enough to bring the torch down.
Needs shortening...
Started electrical setup...
I still have lots of questions... But wanted to let you know there is an outcome eventually!
Can you give me a link which I can't find anymore how to connect induction switches to my 7i76e.?
Thank you
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30 Nov 2019 21:19 #151607
by rodw
Replied by rodw on topic Plasma Torch, first try and lots of questions
Fred, re the 7i76e and proximity switches, you just need to use PNP sensors, power with field power (eg +24v -24v) and connnect the Prox sensor output to the 7i76e input. On the gantry I used some 9 core shielded cable and DB9 connectors to a breakout board I made to connect the sensors to. With 2 wires dedicated to field power, this gave me 7 inputs.
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30 Nov 2019 22:32 #151618
by CNCFred
Replied by CNCFred on topic Plasma Torch, first try and lots of questions
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01 Dec 2019 01:03 - 01 Dec 2019 02:14 #151622
by thefabricator03
Replied by thefabricator03 on topic Plasma Torch, first try and lots of questions
For wiring the 7i76e have a look at the attached pfd's
Last edit: 01 Dec 2019 02:14 by thefabricator03.
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01 Dec 2019 01:45 #151623
by rodw
Replied by rodw on topic Plasma Torch, first try and lots of questions
You've got no shortage of inputs on the 7i76e. I set mine up with seperate home mmax limit and min limit on each axis except the Z axis which has a shared home/limit switch at top of travel for space reasons. The Z axis Min limit is probably not required.
You also need inputs for float switch and possibly torch breakaway. I ended up with 7 inputs from the gantry and 3 inputs on each side.
You also need inputs for float switch and possibly torch breakaway. I ended up with 7 inputs from the gantry and 3 inputs on each side.
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01 Dec 2019 01:47 #151624
by tommylight
Thank you.
Note:
There are also instructions for spindle and encoder wiring, homing and limit switches, e-stop, so does apply for other uses besides plasma.
Replied by tommylight on topic Plasma Torch, first try and lots of questions
Those are very detailed wiring instructions, and should be put in the documentation, somewhere, anywhere where they could be easily found.For wiring the 7i76e have a look at the attached pfd's
Thank you.
Note:
There are also instructions for spindle and encoder wiring, homing and limit switches, e-stop, so does apply for other uses besides plasma.
The following user(s) said Thank You: thefabricator03, CNCFred
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