Introduction To Stepper Motor Motion Control. Pulse And Direction.

In this lesson we go over how stepper motors and drives use pulse and direction for precise positioning in motion control applications. Steppers can use the pulse and direction control to maintain accuracy despite not requiring an encoder. Using basic switches wired to the pulse and direction input, we can make a tutorial where we manually move the stepper motor.

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[eitantal]

One little thing to mention: The direction pin. This pin "cares" about the logic voltage on it. (The other pin just waits for a pulse, to move one step) As such, one must know which logic value corresponds with which direction - CW, or CCW.

[eitantal]

small overlooked nuance: Microstepping. Using clever tricks, the driver can offer you many more "stops", than you'd normally get from just the coils in the NEMA motor. It makes no difference to the pulsing. One pulse equals one Microstep. The number of microsteps (aka subdivisions) is configurable on the motor driver itself

[daltonburdick]

When you are wiring something up, you should show a ladder logic diagram or some sort of schematic. This helps things make more sense when there are so many wires and components

[eitantal]

Fun fact: when probed, the Pulse signal often looks like a 50% duty cycle. This is incidental, it's because every edge (up or down) counts, and the speed tends to remain consistent, hence giving the appearance of a 50%

[luizfeliz]

Fantastic! Can you explain us hou these drivers work internally? (H bridge, current decay, chopping technic, etc) please .-. ._. ;D

[Lilangle]

Thank you for showing us this video, I’m still struggling to connect DC motor to micro820 with no motor drive trainer any key points should I follow?

[danielmora]

Hi Tim could you help me? I am having the next error on the move absolute module MC_FB_ERR_
PROFILE
The function block cannot execute because the motion profile defined in the function block cannot be achieved.
Correct the profile in the function block.
Could you explain me why is this keep happening and how to resolve it. Thank a lot

[silviotomazi]

Please post a video on how to program bit shift right
thanks

[sunilgiri]

Sir, which motor and drive are used in this case

Afterall it's great video .... thank you sir 🙏🙏👍