NEWS
Static indicator terms for stepper motors
Release time:
Jun 07,2023
(1) Phase number: The number of excitation coil pairs that produce different pairs of N and S magnetic fields. Commonly expressed as m.
(2) beat number: the number of pulses or conductive state required to complete a periodic change in the magnetic field is expressed by n, or the number of pulses required for the motor to turn through a pitch angle, in the case of a four-phase motor, there are four-phase four-beat operation, i.e. AB-BC-CD-DA-AB, and four-phase eight-beat operation, i.e. A-AB-B-BC-C-CD-DA-A.
(3) Step angle: corresponding to a pulse signal, the angular displacement of the motor rotor turning is expressed by θ. θ = 360 degrees / (number of rotor teeth * number of running beats), taking conventional two or four-phase, rotor teeth for 50 teeth motor as an example. The step angle is θ=360 degrees/(50*4)=1.8 degrees (commonly known as the whole step) when running in four beats, and θ=360 degrees/(50*8)=0.9 degrees (commonly known as half step) when running in eight beats.
(4) Positioning torque: motor in the non-energized state, the motor rotor's own locking torque (caused by the harmonics of the magnetic field tooth shape and mechanical errors)
(5) Static torque: the locking torque of the motor rotor when the motor is under rated static electric action and the motor is not in rotational motion. This torque is a measure of the volume of the motor, independent of the drive voltage and drive power supply, etc. Although the static torque is proportional to the number of electromagnetic excitation turns, and the air gap between the fixed tooth rotor, but excessive use of reduced air gap, increase the excitation turns to improve the static torque is not desirable, which will cause the motor heat and mechanical noise.
Previous Page
Next Page
Previous Page
Next Page
Recommended News
DO YOU HAVE QUESTIONS?
Get In Touch With Us!
Esperanto
Shqiptare
Euskara
Zulu
Latinus
Cymraeg
தமிழ்
Slovak
Slovak
Afrikaans
