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Post by stevant on Sept 24, 2014 15:45:19 GMT
Here is my question, there are two motors on each side of the platform. Since they are opposite of each other, when wired the same, when one goes up the other goes down. Do we compensate for this by making one of the motor wire hookups reversed on each side so both go up? Do we do this with the motor hookup, reverse the leads, or do we do this in the actual settings of the module.
Hope what I typed makes sense.
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Post by tronicgr on Sept 24, 2014 18:03:10 GMT
Here are some Quick help setting up the correct direction for 6DOF using 6127V1A180L.5 sensors.
Not really an issue but you can only measure 0-5v towards one direction with these sensors. This means that if you connect them like in the following video, half of the motors will rotate wrong direction.
In the video, you can see what happens if you set the direction of the 6DOF to "pos 1-2-3-4-5-6" and all the "A","B" direction inputs are wired the same on all motors. I assume you are pressing the two buttons on the AMC1280USB for high-low position of the motors right?
What I would suggest is use the "Pos 1,3,5 Neg 2,4,6" and invert the 24v direction connectors to the VFD engines 2,4,6 !!
Here is a little map that might help:
*CW is clockwise and CCW is counter-clockwise direction signals, A,B are the DIR outputs on the 6DOF ext board.
Motor1:
A: CW
B: CCW
Motor2:
A: CCW
B: CW
Motor3:
A: CW
B: CCW
Motor4:
A: CCW
B: CW
Motor5:
A: CW
B: CCW
Motor6:
A: CCW
B: CW
Then fire up the power, if the motors does not stop rotating, set the direction in the LCD to Neg 1,3,5 Pos 2,4,6
You have to do that switch of the direction signals on the wires as you cannot rewire the sensor to read different direction. I invert the sensor direction in software.
Thanks, Thanos
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Post by stevant on Sept 24, 2014 20:46:04 GMT
Thank you Thanos, that makes sense. Do you have a link that I can look at to show me how to set my position sensor on the shaft to establish my "center"?
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Post by tronicgr on Sept 24, 2014 21:01:46 GMT
I haven't made such a video as its pretty simple.
-You attach the sensor on the second output shaft of the gearbox. -Fire up the motors and see if they stop rotating, if not you reverse the A-B direction signal on the 6DOF ext board for that motor. -Once you get the motor stop rotating, you manually rotate the sensor (and the motor will follow it) until you have your arm placed horizontally (or close to 90 degrees related to the rod). -Then you tight the sensor in place and that's it. Every time you fire up the motors, they will know what is the "center" position.
Thanks Thanos
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Post by stevant on Sept 24, 2014 21:05:13 GMT
Awesome.....sounds easy enough. Once I hook up your board. By the way, my board just came in the mail!!!!!!!
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