Stepper motor rotates to one side - Help

Good night.
I bought a RAMPS V1.4 and stepper motor drivers.
Follow this video to set.
[www.youtube.com]
But, stepper motors are running sideways posstive when I press to run to the downside in Pronterface software, it does nothing.
Can anyone help me?
Thank you

Check your endstops

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Waitaki 3D Printer

I don't connect any endstop in the board.
I need ?
(see the image)

I had the same problem as you, so I just changed in Sprinter:
const bool X_ENDSTOP_INVERT =false
const bool Y_ENDSTOP_INVERT =false
const bool Z_ENDSTOP_INVERT =false
To:
const bool X_ENDSTOP_INVERT =true
const bool Y_ENDSTOP_INVERT =true
const bool Z_ENDSTOP_INVERT =true
Then the stepper motors moved both ways in Pronterface.
You may need to change the invert back when you attach your endstops, but I'm not sure.

Check your endstop settings in your firmware, or hook up endstops. The firmware thinks your carriage is at it's limits.

Verify your endstop wiring.Cables should be at NC and C. The "NC" goes to "S" on RAMPS and the "C" goes to "-".

OR

Change the logic of the firmware.

Sprinter&Marlin firmware, configuration.h
//If your axes are only moving in one direction, make sure the endstops are connected properly.
//If your axes move in one direction ONLY when the endstops are triggered, set [XYZ]_ENDSTOP_INVERT to true here:
const bool X_ENDSTOP_INVERT = true;
const bool Y_ENDSTOP_INVERT = true;
const bool Z_ENDSTOP_INVERT = true;

In the command box in Pronterface, you can check what the endstops think is going on by typing M119 and looking at the output.