Originally Posted by
cjchands
Dave, First of all thanks for the link to explain how stepper work.
However, the link shows 6 wires (2com, 1a, 1b, 2a, 2b). Which I suppose that 1a = A, 1b =a, 2a = B, 2b = b reference to your driver board. The package said it comes with 8 wires.
Q1. So that's left me scratch my head and wonder what is the other 2 wires for?? (Afterall, you have only 6 terminals per axis.)
Q2. I looked over the link about stepper motor control circuit, but from a lot of formula and physic explanation standpoint, I can't fully understand how the signal works. From my standpoint, I would be very appreciate if you can explain in general how the input of binary bits from the parrellel port2=X dir, 3=X step..... to the output binary bits that send to 6 wires A,a, B,b, com, com work????
From one axis input to the drive, you have 2 terminals: step, direction.
From one axis output to the motor, you have 6 terminals: A, a, B, b, 2 coms.
How does the drive work?
Thank you in advance for your clarification. Appreciate it.
Jeff