I am having some issues with the 3730 high power stepper motor driver, when I connect the input voltage I am not getting any response from the board.
I began by setting up the board in the configuration that is recommended on the product’s main page. Upon running the Arduino code provided in the github library, I did not get a response from the motor so I began attempting to isolate the problem.
I first ensured that the arduino was working correctly by connecting an oscilloscope to each pin and was able to confirm that the arduino was sending the proper signals.
I soon discovered that after removing everything except the input voltage, the board still does not seem to be working.
The reason that I am fairly certain of this is that after applying a 30V input voltage, the 5V reference voltage pin has no response and remains at 0V. This was one of the first things I noticed and was consistent in each isolation step that I took.
Using a pair of fine probes and referencing the datasheet for the DRV8711 I measured the input voltage to the IC and observed that the IC was receiving a proper input voltage, but still nothing on the reference pin.
Is this a dead on arrival issue or am I missing something in the datasheet
Thanks for any help you can provide
- Bryan Desrosiers