OUTLINE (MOTORS) STEPPING MOTORS

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Adrian Young
5 years ago
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1 OUTLINE (MOTORS)

2 OUTLINE (MOTORS) OPL ELETRIS handles motors marked by the motors Induction motors Induction motors make use of the rotation of a basket placed in a rotating magnetic field. Three phase is used to produce the rotating magnetic field, so most large output motors in factories are of this type. rotating magnetic field produced using single phase in capacitor and shading coil types. Synchronous motors These motors rotate syn chronous ly with the frequency of the power supply. Hysteresis synchronous motors These motors use soft steel rotors. The magnetic pull induced by the stator pulls on the magnetic pole of the rotor resulting in synchronous rotation. apacitor and shading coil types are used for phase shifting. These are often used in timers and clocks. Motors Inductor synchronous motors These motors use multi-polarized permanent magnets for rotors. apacitor and shading coil types are used for phase shifting. These are often used in recorder paper feeders and clocks. Universal motors These use the same structure as brush motors, with the magnetic coil and electric coils being directly connected. They will rotate on as well. These are often used in vacuum cleaners and power tools because they are compact and provide high output. motors rush motors The connection of the brush and commutator converts the electricity flowing in the electric coil into rotation. These are the least expensive of motors and are used in a wide variety of applications from toys to home electric appliances. rushless motors These motors use transistors for converting electric current. ecause there are no brushes or commutators, they have long life, but they are expensive. Recently, brushless motors with propellors attached have been used as brushless fans. Stepping motors Variable reluctance (VR) stepping motors Permanent magnet (PM) stepping motors Hybrid (H) stepping motors Refer to the section on stepping motors.

3 OUTLINE (MOTORS) FETURES TYPES Variable reluctance type (VR type) Permanent magnet type Hybrid type (H type) OPL ELETRIS manufactures PM types only. STRUTIS 2 Part name Stator coil Plastic coil bobbin earing Rotating shaft Rotor (Ferrite magnet) Stator core 6

4 RIVING IRUIT riving circuit configuration Excitation and sequence power supply Stepping motor Signal generator riving circuit SW SW2 < Schematic > SW SW2 phase exciting method Sequence LOK Fig. Fig. 2 2 phase exciting method Sequence SW SW2 LOK Fig. 3 Fig. 4

5 RIVING IRUIT SW SW2-2 phase exciting method Sequence LOK Fig. 5 Fig. 6

6 SPEIL PPLITIS <Stepping motors in common> Slow up/down ountermeasures for counter-voltage Fig. Fig. 2 Fig. 3

7 HNLING NOTES Performance of stepping motors varies with the following factors. Please contact your nearest business office.

8 GLOSSRY Torque Static maximum torque Maximum starting torque Slewing characteristics Staring characteristics Maximum pull-in pulse rate Maximum continuous response frequency Static maximum torque etent torque Pull-in torque Pull-out torque Maximum starting torque Maximum pull-in pulse rate Maximum continuous response frequency Slewing characteristics haracteristics curves (Fig. )

9 GLOSSRY Rotational speed Frequency Starting characteristics The relationship of frequency to rotational speed Step angle + 80 ngle accuracy. Step angle accuracy Fig θ + τ 2. Hysteresis accuracy θ T characteristics + Τ θ Δθ + Δθ + θ Τ τ Fig. 3

OUTLINE (MOTORS) STEPPING MOTORS. COPAL ELECTRONICS handles motors marked by the. Induction motors. A C motors. Inductor synchronous motors.

OUTLINE (MOTORS) STEPPING MOTORS. COPAL ELECTRONICS handles motors marked by the. Induction motors. A C motors. Inductor synchronous motors. OUTLINE (MOTORS) OPL ELETRIS handles motors marked by the motors Induction motors Induction motors make use of the rotation of a basket placed in a rotating magnetic field. Three phase is used to produce