Phidgets Forums

I am trying to control a DC Motor with Encoder, and I am using a 2A DC Motor Phidget + VINT.

I can read encoder positions when I manually spin the motor.

When I click in "engage motor" I het an Error setting engaged: PhidgetException 0x000000034 (Device not Attached).

I have a screenshot here:
https://photos.app.goo.gl/ZjBH5rKOVilaf0f72

Any help will be much appreciated, am I missing something here?

Thanks in advance

You can't have the Position Controller and DC Motor Controller examples open at the same time (this is why the info box for the position controller window says "Attached: Nothing"). This is because both of those windows use the DCMotor channel of the DCC1001, whereas the encoder window uses the Encoder channel. If you want to run the motor at a certain duty cycle in one direction, use the DC Motor Controller example. If you want position control with a PID control loop, use the Position Controller.

Hi, thanks so much for helping!

When I open only the PositionController it shows the device attached (DCC1001) but then the program crash..

https://photos.app.goo.gl/YcYec8yOrYo3wXwQ2

We've just been made aware of this issue. There'll be a fix in the next version of the libraries. In the meantime, you may be able to get it working by downloading the C# PositionController example, which is the same program.

There is another issue when using the DC Motor Controller program.

I've been changing the parameters (target velocity, acceleration, current limit) and the motor does not spin. I measured the voltage on M+ and M- and there is nothing there.

Already tried with two different motors..

Any clue on what is happening here?

I've made a program in C# and still not able to actuate on the motor..

False Alarm!!
I was feeding the Motor Controller with 5V. Raised voltage to 8V and works like a charm.

Thanks so much for helping!