Posts made by YanikLD

@T3P3Tony Thx Tony. Actually, I have a drive for the motor that needs 0 to 5Vdc at the input (nor to say 50mA), and I'm replacing the original encoder by an inductance sensor and a magnet for the feedback. This said, you confirm what I was afraid of... the need to rewrite the firmware. To your knowledge, there's no way to count pulses/sec (directly with a Duet) to control an O/P in voltage or PWM?!
What do you think about mapping a heater O/P (to drive the motor) to RTD/Tc/Thermistor I/P (through a translator pcb doing frequency to voltage)?
Thx!

Hi! I'm new to Duet and before spending time and money I'd like to get some questions answered. I have some difficulties to find (cross referencing the Duet 6HC spec pages) some info for the i/p and o/p, such as current capabilities and signal types.

My project: Rehaul an extruder made of 3 heaters (120Vac), 3 Tc, a 24Vdc motor (0-5Vdc input through a drive) and an encoder made of a Hall effect sensor and a magnet on the shaft (1 to 48 pulses per min. 0-5Vdc or to any voltage up to 24Vdc).

My I/O needs:

[1] 1x O/P to drive a variable 0 to 5Vdc/1k input impedance (50mA to drive) dc motor drive: 1x 0 to 5Vdc analog, or possibly pwm (on which I’d put a low-pass RC filter). I saw “EXT 5V” with the note “open drain mosfet Output” Is this a variable analog 5Vdc o/p? Can it drive 50mA? If not, I saw “LASER/VFD” with the note “PWM-to-0 to 10V converter (for variable-frequency drives)”. Is this a variable analog 5Vdc o/p? Can it drive 50mA? I also saw “OUT 4, OUT 5, OUT 6”, which are PWM. What is the o/p voltage? Can they drive 50mA? I read that all the O/P can be PWM… Can they be something else? And what? Can they drive 50mA? What O/P you would suggest?
Many questions for that O/P. Sorry I didn’t find the info. Is someone can answer them?

[2] 1x I/P to receive (and count pulses) hall effect signal from sensor. It is a 3.3-24Vdc. I saw “IO_0, IO_1, IO_2, IO_3, IO_4, IO_5, IO_6, IO_7, IO_8”. Doing a counter in the program, can those IO be used for pulse signal from a Hall effect signal? What the board would accept as maximum acquisition rate (motor will turn at 48 rpm)? What I/P you would suggest?
For that I/P, can someone answer?

Thx in advance!
A very grateful newbie!