To change direction you need to reverse the current in one set of coils only. At the moment the two motors are connected in parallel and turn in the same direction. Swap ONE of the coil pairs over and you should be able to get the two motors turn in the opposite direction with the same drive signal.
Can stepper motor rotate in both directions?
Stepper motors need bidirectional control in automatic machines or robotic applications. The circuit in Figure 1 lets you control bipolar stepper motors and run them in both rotations. Switch S2 turns the motor on, and switch S1 controls the motor’s direction. …
Can you adjust a stepper motor?
Adjusting the current of a stepper driver is easy, just turn the small potentiometer with a tiny flat head screw driver. Be very careful though. Do not short your screw driver to any of the terminals of the stepper driver as you may cause damage to your stepper driver.
Does polarity matter on stepper motor?
To get the stepper just moving, polarity of each coil doesn’t matter, nor does it matter which coil is which. So make sure each pair of wires for a coil are together on one side of the plug (or the other side for the other coil), and plug it in.
How does stepper motor change direction and speed?
How fast we can change direction of rotation of a stepper motor
- change DOR(direction of rotation) every alternative rotation in the opposite direction.
- control the speed of change.
- control the angle of rotation i.e 30 degrees or 40 degrees after which it will change the DOR.
- Ability to lock at any position.
How is a stepper motor controlled?
A stepper motor converts a train of input pulses into a precisely defined increment in the mechanical shaft position, where each pulse moves the shaft through a fixed angle. … Stepper motor control provides this input train of pulses to command the motor to move to the desired position or at the desired speed.
How do you adjust the speed on a stepper motor?
There are a few main ways to increase your maximum step speed:
- Use a higher voltage. …
- Set the current limit to the maximum allowed by your stepper motor. …
- Ramp the stepper speed up slowly. …
- Decrease the external load on the stepper.
How do you adjust a stepper?
USING THE MINI STEPPER
The tension knob, located between the two pedals, will adjust the range of motion. To increase the range of motion, turn the knob clockwise. To decrease the range of motion, turn the knob counterclockwise. Adjusting the tension knob will determine the intensity of your workout.
How can the direction of stepper motor be changed Mcq?
Solution: The direction of the DC motor can be changed by changing the polarity of the voltages connected to its leads.