Building a new system?

6 years 10 months ago #29531144 by TechSupport
Replied by TechSupport on topic Building a new system?
There is autocalibrate and there is the user defined under the analog input "Range" menu. The video tutorial show you how to use that.

If you want say a specific range based on the analog voltage value, you can set up the action for forward and reverse limit switches.

Each analog inputs are user defined, so you can set them up the same, or differently as needed.

The range works with 3 parameters.

Min
Center
Max

Center is your neutral position, and anything below that to the min is a reverse, and anything above it is a forward direction. You can invert the polarity so it works in reverse.

What is your digital feedback signal?

Are you referencing encoders?
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6 years 10 months ago - 6 years 10 months ago #29531145 by Brians11GT
Replied by Brians11GT on topic Building a new system?
i'm sorry....yes the digital feedback would be encoders. I watched the videos again and I yes I do see how to set range on the joystick, but I either missed or don't understand what I am seeing as far as setting a range for the motor travel. especially regarding a multi turn motor range. for example....if I move the joystick along the "+X" axis the motor turns up to 5 times (1800 deg.)from neutral being able to stop in relation to where the joystick is positioned. Likewise, if the joystick is moved along the "-X" axis the motor will rotate up to say 5 rotations (-1800 deg.)from it's neutral position in the reverse direction. It will easier to just explain what this for. basically i'm trying to build a drive by wire setup so the "y" axis of the joystick operates the accelerator and brake with motor 1 +Y axis will apply brake and -Y axis applies the accelerator hence the motor range of +/- 45 deg. from neutral. the "X" axis will control motor 2 which will spin worm gears attached to a steering shaft, hence the multi turn action of the motor in both directions. this steering is NOT an E.P.A.S. set up it's not for a automobile. it will be steered by the joystick. that should give a better description of what I need.

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6 years 10 months ago #29531150 by TechSupport
Replied by TechSupport on topic Building a new system?
The range of the motor travel is based on the analog input voltage range. The firmware inside the controller will convert the analog input voltage into a motor command. So at max or min value, that means that the conversion is 100%.

Min 1000
center 2000
max 3000

That would mean if your voltage at the input is 1500, then it would turn into a motor command of -500 and a value of 2500 would be +500 command. This is just a simple way of looking at it.

You'll have to figure out the rotations part through trial and error based on your range values and your inputs.
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6 years 10 months ago #29531184 by Brians11GT
Replied by Brians11GT on topic Building a new system?
ok, I understand. one more question.....we talked about "position" control before. you included a link to a video using your SDC line of controllers. I looked at the SDC line, none of the SDC models are at the current I need. I need at least 57 amps. So now what controller would you recommend? Thanks so much.

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6 years 10 months ago #29531185 by TechSupport
Replied by TechSupport on topic Building a new system?
I had recommended the XDC2230 and the HDC2450 due to the fact you need 57A continuous.
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