What are the nominal torque, the holding torque, the maximum acceleration torque, the maximum starting torque and the positioning torque of the stepping motor?
Step by step common sense1. what is a stepper motor?Stepping motor is a kind of actuator that transforms electric pulse into angular displacement. Generally speaking, when the stepping driver receives a pulse signal, it drives the stepper motor to rotate a fixed angle (and step angle) in the set direction. You can control the number of pulses to control the amount of angular displacement, so as to achieve the purpose of accurate positioning; at the same time, you can control the pulse frequency to control the motor rotation speed and acceleration, so as to achieve the purpose of speed.
What is the accuracy of the stepping motor? Is it cumulative?The accuracy of general stepper motors is 3-5% of step angle and does not accumulate.What is the approximate temperature of the 6. step motor?Step motor temperature is too high will make the first magneticdemagnetization motor, resulting in loss of torque down even further, so the highest temperature of motor appearance allows should depend on the different demagnetization of magnetic materials motor; generally speaking, the magneticdemagnetization points are above 130 degrees Celsius, some even up to more than 200 degrees Celsius therefore, the stepper motor surface temperature of 80-90 degrees Celsius isnormal.
What is keeping torque (HOLDING TORQUE)?"HOLDING TORQUE" means the torque of the rotor locked by the stator when the stepper motor is energized but without rotation. It is one of the most important parameters of the stepper motor. The torque of the stepper motor is close to the torque at low speed. Because the output torque of stepping motor is decaying with the increase of speed, the output power also varies with the increase of speed, so keeping torque is one of the most important parameters of stepping motor. For example, when people say that 2N.m stepper motor, in the absence of special instructions, refers to the torque of 2N.m stepper motor.
What kinds of stepper motors are there?The stepper motor is divided into three kinds: permanent magnet (PM), reactive (VR) and hybrid (HB) permanent magnet stepper usually two-phase torque and smaller step angle is 7.5 degrees or 15 degrees; the reaction is generally three-phase stepper can achieve high torque output. The step angle is 1.5 degrees, but the noise and vibration are large. In Europe and the United States and other developed countries, in 80s has been eliminated; hybrid stepping refers to the combination of permanent magnet and reaction advantages. It is divided into two phases and five phases: two phase stepping angle is generally 1.8 degrees, while the five phase stepping angle is generally 0.72 degrees. This stepper motor
