Question:
Has anyone else had problems with the stepper motors (particularly the Extruder) sending residual signals to other pins on the board?
Synopsis:
I'm trying to hook up the AD595 kit board with thermocouple. It takes a 5v, an analog signal, and a ground. I have tried using the signal on pins A3 and A5, (see the attached schematic for the locations I'm referring to). I have used a multi-meter to measure the voltage between ground and my 5v pins, and found no fluctuations. However, when I use the multi-meter to measure the voltage between ground and my analog pin, I see a serious problem. It all works fine until I run any of the motors. Running the E motor causes the reading to jump up by 1v. It remains 1v too high until I turn the motors off. Then it returns to normal operation.
Setup:
Prusa Mendel with 300W Diablotek power supply and RAMPS 1.4 with AD595 Type-K thermocouple
Has anyone else had problems with the stepper motors (particularly the Extruder) sending residual signals to other pins on the board?
Synopsis:
I'm trying to hook up the AD595 kit board with thermocouple. It takes a 5v, an analog signal, and a ground. I have tried using the signal on pins A3 and A5, (see the attached schematic for the locations I'm referring to). I have used a multi-meter to measure the voltage between ground and my 5v pins, and found no fluctuations. However, when I use the multi-meter to measure the voltage between ground and my analog pin, I see a serious problem. It all works fine until I run any of the motors. Running the E motor causes the reading to jump up by 1v. It remains 1v too high until I turn the motors off. Then it returns to normal operation.
Setup:
Prusa Mendel with 300W Diablotek power supply and RAMPS 1.4 with AD595 Type-K thermocouple