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How much power does a stepper motor use?
A typical stepper motor like our NEMA 17 might have a rated voltage of 2.8 Volts and a maximum current of 1.68 Amps. This basically means if you hook it up to 2.8 Volts it will draw 1.68 Amps. If you try to run it at a higher voltage it will draw more current and get excessively hot.
What is power factor of a motor?
The motor power factor is the phase angle between voltage and current (cosφ). cos phi (φ) is used, among other purposes, to calculate the power consumption of a motor. Cosφ is the phase angle between voltage and current. Cosφ is also referred to as power factor (PF).
How to calculate the stepper motor power requirement?
Re: How to calculate stepper motor power requirement? Using normal constant current drivers, the total power consumed by the motor at rest is always equal to the square of the phase current times the phase resistance (this is because sin^2 + cos^2 = 1). So 1.5 x 1.5 x 1.4 W in your example.
What happens when a stepper motor is stalled?
A controller will continue to pulse when the motor is stalled, but since none of the power is going into work, it all goes into heat. Run as slow as you can and keep your max current low so that when these conditions occur you won’t overheat. Keep your duty cycle low if possible.
What is the accuracy of an oriental stepper motor?
ORIENTAL MOTOR’s standard stepper motors have an accuracy of ± 3 arc minutes (0.05°). The remarkable feature of steps motors, though, is that this error does not accumulate from step to step. When a standard stepper motor travels one step it will go 1.8° ± 0.05°.
What kind of driver do you need for a 2 phase stepper?
The driver you specify is for a 2 Phase stepper with a maximum of 4.5 A per phase capability. The first thing to understand is that 2 phase and 3 phase stepper motors do not act like AC motors at all. Look at the torque characteristics you posted in the question.