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386HS678 3 Phase Hybrid Stepper Motor

    Buy cheap 386HS678 3 Phase Hybrid Stepper Motor from wholesalers
     
    Buy cheap 386HS678 3 Phase Hybrid Stepper Motor from wholesalers
    • Buy cheap 386HS678 3 Phase Hybrid Stepper Motor from wholesalers

    386HS678 3 Phase Hybrid Stepper Motor

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    Brand Name : PRMCAS
    Model Number : 386HS678
    Certification : CE, ROHS, CCC
    Price :
    Supply Ability : 10000pcs per Month
    Delivery Time : 7-14days for standad version customization 3-4weeks
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    386HS678 3 Phase Hybrid Stepper Motor

    1. Products Overview

    Stepper motor is an executive agency that converts electrical pulses into angle displacement. You can control the angle by controlling the number of pulse to achieve the purpose of accurate position control. At the same time, you can control the speed and acceleration of the motor by controlling the input pulse frequency to achieve the purpose of the speed control.

    Step motor, also called as pulse motor is normally classified by structural as: reactive step motors (VR), permanent magnet step motor (PM), and hybrid step motor (HB). Step motor can also be divided into rotation and straight lines according to the form of movement. According to whether there is an encoder, can be divided as open-loop and closed-loop step motors.

    Reactive step motor: there are windings on the stator and rotor consisting of soft magnetic materials. The structure is simple, the cost is low, the step distance is small, and it can reach 1.2 °, but the dynamic performance is poor, the efficiency is low, the heating is large, and the reliability is difficult to guarantee.

    Permanent Magnet step motor: The rotor of the permanent magnet step motor is made of permanent magnet material, and the rotor is the same as that of the stator. It is characterized by good dynamic performance and large output torque, but this motor has poor accuracy and large steps (generally 7.5 ° or 15 °).

    Hybrid Step motor: Hybrid steaming motor integrates the advantages of reaction and permanent magnets both. It has a multi-phase windings, permanent magnet material on the rotor, and multiple small teeth on the rotor and stator to improve the step accuracy. It is characterized by large output torque, good dynamic performance, and small steps, which can meet automation applications which have high precision requirement.


    According to the quantity of phases, there are two-phase, three-phase, and five-phase step motors. The most popular is the two-phase hybrid step motor, accounting for about 97%of the market share. The reason is that the two-phase step motor is more cost-effective, and also has satisfactory performance due to subdivision or micro stepping function of its drive.

    The basic step angle of a two-phase step motor is 1.8 °/step. Matched with a half-step drive, the step angle is reduced to 0.9 °. Matched with a micro stepping driver, the step angle can be subdivided up to 256 times (0.007 ° per micro step), which can meet the requirement of most applications.


    Although the stepper motor and its control technology are currently very mature, if not used properly, there may still be a situation of step loss, that is, position error etc. Here, we will analyze some problems and solutions.

    Losing pulses when changing direction leads to inaccurate positioning

    When changing direction, the pulse is lost, which means that it is accurate in any direction, but as soon as the direction is changed, errors accumulate, and the more times it is changed, the more biased it is.

    Solution: Generally, stepper drivers have certain requirements for direction and pulse signals. For example, the direction signal is determined a few microseconds before the first rising or falling edge of the pulse (different drivers have different requirements) arrives. Otherwise, there will be a pulse that runs in the opposite direction of the actual required direction. Finally, the problem will appear as it deviates more and more, with smaller subdivisions becoming more prominent. The main solution is to use software to change the logic of the pulse or add a delay.

    The initial speed is too high and the acceleration is too large, which sometimes causes stepping loss.

    Solution: Due to the characteristics of the stepper motor, the initial speed should not be too high, especially when the load inertia is large. It is recommended to have the initial speed below 1r/s, so that the impact is small. If the same acceleration is too large, it will also have a large impact on the system, which is simple overshoot

    Insufficient motor output torque

    Solution: Increase the motor current appropriately, increase the voltage of the progressive driver (pay attention to the optional driver), and choose a motor with higher torque.

    Environmental electromagnetic interference causes mis-operation of the controller or driver, resulting in inaccurate positioning.

    It is necessary to identify the source of disturbance and reduce its electromagnetic interference on the stepper system, such as increasing spatial distance, using shielded wires for signal lines, and ensuring good grounding of the controller or driver to block communication channels and improve its anti-interference ability.

    Solutions:

    • Replacing ordinary wires with double shielded wires, the signal lines in the system are separated from wires with high current or high voltage to reduce electromagnetic interference ability.
    • Filter out disturbance waves from the power grid using power filters, and add power filters to the input terminals of major electrical equipment under permissible conditions to reduce interference between devices within the system.
    • It is best to use photoelectric blocking devices for signal transmission between devices. If conditions permit, pulse and directional signals should be transmitted using differential methods with photoelectric blocking. In rational loads (such as electromagnetic relays, solenoid valves), a resistance capacitance absorption or fast discharge circuit is added at both ends. Rational loads can experience a peak voltage of 10-100 times in the initial moment, if the operating frequency is above 20KHZ.

    Kaifull Hybrid Stepper Motors Applications

    Machine tools and engraving machines

    The application of stepper motors in machine tools is also very common. In machine tools, stepper motors are used to control the feed and tool retraction, thereby achieving precision and speed in machining workpieces. It can achieve different processing effects, high speed, and high efficiency.

    Automation equipment

    The application of stepper motors in automation equipment is also very extensive. In automation equipment, stepper motors are used to control the position and speed of various moving components, thereby achieving automation control of the equipment. It can achieve different control effects, such as high speed and high stability.

    Printing machines

    Stepper motors are widely used in printers. In a printer, a stepper motor is used to control the movement of the print head, thereby achieving precise printing of text, images, and charts. It can achieve different printing effects, such as high definition, high speed, and high stability.

    Automotive components

    The application of stepper motors in automotive components is also very common. In automotive components, stepper motors are used to control the position and speed of car seats, rearview mirrors, windows, and doors, thereby achieving automated control of automotive components. It can achieve different control effects, such as high speed and high reliability.

    Optical equipment

    In optical equipment, stepper motors are widely used in modulators, fine-tuning, and other aspects. Because the action of stepper motors is very slow and the stepper angle can be adjusted, they are widely used in various optical positioning mechanisms, which can provide higher stability and accuracy for optical equipment.

    Medical devices

    Stepper motors are widely used in medical devices, especially in surgical instruments such as blades and cutters. The high-precision positioning of stepper motors can significantly improve the accuracy of surgery and make surgery safer. Stepper motors can also be used in devices such as pacemakers and syringes.

    Precision positioning applications

    Stepper motors can complete precise positioning tasks through quantitative motion and fixed step angles, which makes them widely used in various precision positioning equipment, such as optical equipment, textile equipment, computer embroidery machines, medical equipment, automation equipment, etc. These equipment usually require high-precision and stable positioning machinery, and stepper motors are perfect for such tasks.

    In summary, stepper motors can be widely used in various fields due to their characteristics of quantitative motion and fixed stepper angle, providing more precise and efficient driving force for mechanical equipment to achieve higher production efficiency and quality.


    2. Hybrid Stepper Motor General Technical Specifications


    Step Angle1.2° (3 Phase)
    Step Angle Accuracy0.06°
    Shaft TypeSingle shaft, Dia. 6.35 or 8.0mm (Customizable)
    Max. Temperature RiseLess than 80 °C (Rated Current)
    Max. Surface TemperaturesMax Allowed 100℃
    Ambient Temperature-20 °C ~ +50 °C
    Insulation Grade100 MΩ Min. , Class B
    Dielectric Strengt1500 VAC for 1 Minute
    Max. Axial Load60N
    Max. Radial Load320N (10mm from mounting Surface)
    CertificatesRohs, CE, CCC (As per Customer Need)

    3. Hybrid Stepper motor Performance Datasheet

    ModelCurrentResistanceInductanceHolding TorqueDetent TorqueRotor InertiaBi/UnipolarWeightLength
    A/ØΩ/ØmH/ØN.mN.cmg.cm2# of Leadskgmm
    386HS678-2256S-1272.259.041.06.7832700Bi (6)4.3127
    386HS678-5206S-1275.22.7513.76.7832700Bi (6)4.3127

    4. Mechanical Dimensions (in mm)


    5. Wiring Diagram


    6. Torque Speed Curves


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