【導(dǎo)讀】information.Set?5?inlocation8. Subtract?1?fromlocation8. auniqueopcode),operandaddress,immediateoperands,branchaddress.

　　

【正文】 tepper motor. It is also sometimes referred to as Permanent 無錫科技職業(yè)學(xué)院 中英文翻譯 13 Mag Induction Stepping Motor. It consists of two phases and the fivephase: the general twophase step angle of degrees and the general fivephase step angle degrees. The most widely used Stepper Motor. Stepper motor drive for energy saving 36 Threephase stepper motor drive special features: ? 180% low torque output, low frequency characteristics of a good run ? Maximum output frequency 600Hz, highspeed motor control ? full range of detection of protection (over voltage, under voltage, overload) instantaneous power failure restart ? acceleration, deceleration, such as dynamic change in the stall protection function to prevent ? Electrical dynamic parameters of automatic recognition function to ensure stability and accuracy of the system ? quick response and highspeed shutdown ? abundant and flexible input and output interface and control, versatility ? use of SMT production and three fullmount antipaint treatment process, product stability and high ? full range of Siemens IGBT power devices using the latest, to ensure the quality of highquality 37 Basic principles Usually for the permanent mag rotor motor, when current flows through the stator windings, the stator windings produce a magic field vector. The magic field will lead to a rotor angle of the magic field makes the direction of a rotor and the stator39。s magic field direction. When the stator magic field vector rotating at an angle. As the rotor magic field is also transferred from another perspective. An electrical pulse for each input, the motor turning a point forward. It is the angular displacement of the output and input the number of pulses proportional to speed and pulse frequency is proportional to. Power to change the order of winding, the motor will reverse. Therefore, the number of available control pulse, frequency and power the motor windings of each phase in order to control the stepper motor rotation. 無錫科技職業(yè)學(xué)院 中英文翻譯 14 38 Induction Stepping Motor 381 features: Induction, pared with the traditional reactive, structural reinforced with a permanent mag rotor, in order to provide the working point of soft magic materials, and the stator excitation magic field changes only need to provide to provide the operating point of the consumption of magic materials energy, so the motor efficiency, current, low heat. Due to the presence of permanent mags, the motor has a strong EMF, the damping effect of its own good, it is relatively stable during operation, low noise, low frequency vibration. Induction can be seen as somewhat lowspeed synchronous motor. A fourphase motor can be used for fourphase operation, but also can be used for twophase operation. (Must be bipolar voltage drive), while the motor is not so reactive. For example: four phase, eightphase operation (AABBBCCCDDDAA) can use twophase eightshot run. Not difficult to find the conditions for C =, D =. a twophase motor39。s internal winding consistent with the fourphase motors, small power motors are generally directly connected to the second phase, the power of larger motor, in order to facilitate the use and flexible to change the dynamic characteristics of the motor, its external connections often lead to eight (fourphase), so that when used either as a fourphase motors used, can be used for twophase motor winding in series or parallel. 382 classification： Induction motors can be divided in phases: twophase motor, three phase motor, fourphase motor, fivephase motor. The frame size (motor diameter) can be divided into: 42BYG (BYG the Induction Stepping motor code), 57BYG, 86BYG, 110BYG, (international standard), and like 70BYG, 90BYG, 130BYG and so are the national standards. 383 the stepper motor phase number of static indicators of terms: very differently on the N, S the number of magic field excitation coil. Common m said. Beat number: plete the necessary cyclical changes in a magic field pulses or conducting state with n said, or that turned a pitch angle of the motor pulses needed to fourphase motor, for example, a fourphase fourshot operation mode that AB BCCDDAAB, shot eight fourphase operation mode that AABBBCCCDDDAA. Step angle: corresponds to a pulse signal, the angular 無錫科技職業(yè)學(xué)院 中英文翻譯 15 displacement of the rotor turned with θ said. θ = 360 degrees (the rotor teeth number of J * run shot), the conventional two, fourphase, the rotor teeth 50 tooth motor as an example. Four step runtime step angle θ = 360 176。 / (50 * 4) = degrees (monly called the whole step), eightshot running step angle θ = 360 176。 / (50 * 8) = degrees (monly known as half step.) Location torque: the motor is not energized in the state, its locked rotor torque (as well as by the magic field profile of harmonics caused by mechanical error) static torque: the motor under the rated static electricity, the motor without rotation, the motor shaft locking torque. The motor torque is a measure of volume (geometry) standards, and drive voltage and drive power, etc. has nothing to do. Although the static torque is proportional to the electromagic magizing ampere turns, and fixed air gap between the rotor teeth on, but overuse of reduced air gap, increase the excitation ampereturns to increase the static torque is not desirable, this will cause the motor heating and mechanical noise. 39 Characteristics of the stepper motor 1. The general accuracy of the stepper motor step angle of 35%, and not cumulative. 2. Appearance of the stepper motor to allow the maximum temperature. Stepper motor