Contents
What is stepper motor torque?
A stepper motor divides a full rotation into a number of equal steps, important for many industrial motor and motion control applications. Holding torque is a measurement of how much rotating force is required to force a stationary stepper motor shaft out of position.
How is a stepper motor calculated?
RPM = a/360 * fz * 60 Example 1: Drive step resolution is set for 1000 steps per revolution. Example 2: Drive step resolution is set for 500 steps per revolution. With input frequency of 1000hz, . 72 / 360 * 1000 * 60 = 120 rpm.
What do stepper motor numbers mean?
Stepper motors have a step angle. A full 360° circle divided by the step angle gives the number of steps per revolution. For example, 1.8° per full step is a common step size rating, equivalent to 200 steps per revolution. Most stepper motors used for a Mendel have a step angle of 1.8 degrees.
Are stepper motors fast?
Generally speaking the top speed of a stepper motor is approximately 1000rpm. If you need to go above this speed but still require intelligent control of the motor you should consider a brushless DC motor and controller (brushless ESC).
How much power can a stepper motor generate?
Stepper motors can generate power from a tenth of a watt up to several watts. The following article shows how a 4-phase unipolar stepper motor is capable of creating a ½ watt of power. The first thing to consider is the price of stepper motors.
How does the stepper motor affect the equation?
The stepper motor will play a factor in the above equation. This will depend on the type of stepper motor you select. Some motors can be odd, and move in different amounts for each step. This equation is helpful in determining how many steps your stepper motor requires to move one full revolution.
What is the nameplate voltage of a stepper motor?
The motor’s nameplate voltage is therefore listed as 2.5 [V]. This is the voltage that produces 5 [A] of current into the winding in steady state. However, a stepper motor must change the current in its windings rapidly and will not always run in steady state.
What is the step angle of a motor?
4. Step angle: This is the step angle the motor was driven at when creating the curve. Curves will commonly show what the basic step angle (1.8°, 0.9°, 0.72°, 0.36°) of the motor or what driver resolution (full, half, microstep divisions) were used.
What happens if you remove a detent on a stepper motor?
This detent has a predictable spring rate and specified torque limit; slippage occurs if the limit is exceeded. If current is removed a lesser detent still remains, therefore holding shaft position against spring or other torque influences. Stepping can then be resumed while reliably being synchronized with control electronics.