MFDDTA390003 MFDDTA390003 Guangzhou Matsushita servo motor an agent Zhang Gong 182-019-88-309 QQ 8788-56087 following: Panasonic servo motor products, performance and benefits, use, service, packaging and other goods of price; Panasonic Panasonic servo servo designated Agents [high quality low cost please consult Zhang; 182, 01 988, 309 ,,] Panasonic servo repair Panasonic Panasonic servo motor servo prices prices of services to the petroleum, chemical industry, water industry, metallurgical industry, equipment manufacturing, tobacco machinery, packaging machinery, machine tool manufacturing, automotive, shipbuilding, textile and other industries. Principles for a servo motor, AC servo motor AC servo motor stator phase capacitor structure essentially single-phase induction motor similar position with two mutual difference of 90 ° on the stator windings, one field winding Rf, it is always connected the AC voltage Uf; the other is the control winding L, connecting the control signal voltage Uc. So, also known as two AC servo motor servo motors. AC servo motor rotor is usually made of squirrel-cage, but in order to make the servo motor has a wide speed range, the mechanical properties of linear, non-performance of "rotation" phenomenon and rapid response, which compared with ordinary motor, should have rotor resistance Japanese small moment of inertia of these two characteristics. At present, the application of more rotor structure, there are two forms: one is the use of a conductive material made of high resistivity high resistivity squirrel cage rotor bars, in order to reduce the moment of inertia of the rotor, the rotor did slender; the other a hollow cup-shaped rotor is made of aluminum alloy, Beibi thin, only 0.2-0.3mm, in order to reduce the magnetic reluctance, to be placed in the inner stator fixed hollow cup-shaped rotor hollow cup-shaped moment of inertia of the rotor is small, rapid response, and smooth operation, so it is widely used. AC servo motor in the absence of the control voltage, the stator only pulsating magnetic field generated by the field winding, the rotor is stationary. When a control voltage, they produce a rotating magnetic field within the stator, the rotor in the rotation direction of the rotating magnetic field, under a constant load, the motor speed control with the magnitude of the voltage change, when the control voltage of the opposite phase, the servo motor will be reversed. AC servo motor works with split-phase single-phase induction motor, although similar, but the former than the latter rotor resistance is much greater, so the servo motor compared to single asynchronous motor, has three salient features: 1, the starting torque Due to the large rotor resistance, its torque characteristic curve shown in Figure 3, curve, and ordinary asynchronous motor torque curve compared to Figures 1 and 2, there is a clear distinction. It allows critical slip S0> 1, so that not only the torque characteristics (mechanical properties) is closer to linear, but also has a larger starting torque. Therefore, when there is a control voltage stator, rotor immediately, that have start fast, high sensitivity. 2, 3 wide operating range, without rotation servo motor functioning phenomenon, as long as the loss of control voltage, the motor stops immediately. When the servo motor is out of control voltage, it is in the state of single-phase operation, the rotor resistance is large, both the torque characteristics of the rotating magnetic field effect of the stator and the rotor rotating in two opposite directions the resulting (T1-S1, T2-S2 curve ) and synthetic torque characteristics (T-S curve) AC servo motor output power is generally 0.1-100W. When the power frequency is 50Hz, voltage 36V, 110V, 220,380V; when the power frequency is 400Hz, voltage 20V, 26V, 36V, 115V and other. AC servo motor is running smoothly, low noise. But the control characteristics are nonlinear, and the rotor resistance, loss, low efficiency, compared with the same capacity DC servo motors, bulky, heavy weight, it only applies to a small 0.5-100W power control system. 1. The servo servo motor works mainly on the pulse to locate, basically can be understood, the servo motor receives a pulse, it will rotate a pulse corresponding angle in order to achieve displacement, because the servo motor itself has issued a pulse function, so each servo motor rotation angle, will be issued a corresponding number of pulses, so that the servo motor and accepted the echo pulse forming, or called closed loop, this way, the system will know how many pulses sent to the servo motor, at the same time and the number of pulses received back, so that it is possible to very accurately control the rotation of the motor, in order to achieve accurate positioning can be achieved 0.001mm. DC servo motor into a brush and brushless motors. Brushed motors low cost, simple structure, starting torque, wide speed range, easy to control, the need to maintain, but easy to maintain (replace the brushes), electromagnetic interference, the requirements of the environment. So it can be used for cost-sensitive general industrial and civil applications. Brushless motor, small size, light weight, large output, fast response, high speed, low inertia, smooth rotation, torque and stability. Control of complex, easy to implement intelligent, flexible electronic commutation, it can be a square wave commutation or sinusoidal commutation. Motor maintenance, high efficiency, low operating temperature, electromagnetic radiation is very small, long life, can be used for a variety of environments. 2. AC servo motor is a brushless motor, divided into synchronous and asynchronous motors, the current motion control generally use synchronous motors, large power range it can do a lot of power. Large inertia, the maximum rotational speed is low, and with the power increases rapidly decreased. Therefore suitable for low speed applications running smoothly. 3. The servo motor is a permanent magnet rotor inside the drive control U / V / W three-phase power to form an electromagnetic field, the rotor rotates in the role of the magnetic field, while the motor comes with encoder feedback signal to the drive, the drive based on feedback is compared with a target value, adjusting the angle of rotation of the rotor. Depends on the accuracy of the servo motor encoder accuracy (number of lines). What is a servo motor? There are several types? What are the characteristics? A: The servomotor also known execution motor, the automatic control system, is used as the actuator, the electric signal received is converted into angular displacement or angular velocity of the output shaft of the motor. DC and AC servo motor into two categories, its main feature is that when the signal voltage is zero when there is no rotation phenomenon, the speed increases torque and uniform decline, what AC servo motors and brushless DC servo motor function on What is the difference? A: AC servo is better, because it is the sine wave control, torque ripple is small. DC servo is trapezoidal wave. But DC servo is relatively simple and inexpensive. Permanent magnet AC servo motor since the 1980s, along with integrated circuits, power electronics and variable speed AC drive technology development, permanent magnet AC servo drive technology has outstanding development, countries famous electrical manufacturers have launched their own exchange servo motor and servo drive products and continue to improve and update. AC servo system has become the main direction of development of contemporary high-performance servo system, so that the original DC servo be forced out of the crisis. 90 years later, the world has been commercialized AC servo motor servo system is the use of digital control sine wave drive. AC servo drive the rapid development in the field of transmission. Permanent magnet AC servo motor with DC servo motor comparison, the main advantages are: ⑴ without brush and commutator, so reliable, low-maintenance and maintenance requirements. ⑵ stator windings heat more convenient. ⑶ inertia is small, easy to improve the system fast. ⑷ adapted to high-speed high torque working condition. Smaller size and weight ⑸ under the same power. Note the use of servo motors installed a servo motor oil and water conservation A: servo motor can be used in place of water or oil droplets will be affected by the invasion, but it is not full of water or oil. Therefore, the servo motor or use should not be placed in water or oil immersion environment. B: If the servo motor is connected to a reduction gear, the use of a servo motor fuel should be sealed to prevent the reduction gear oil into the servomotor C: servo motor cables should not be immersed in oil or water. Second, the servo motor cable → relieve stress A: Make sure the cable is not due to an external force or bending moment by its own weight or vertical loads, especially in the cable at the exit or junction. B: In the case of the servo motor moves, should the cable (that is, with the motor configured Flanagan) fixedly secured to a stationary part (relative to motor), and should be fitted with a cable holder in the additional cable to extend It is, thus the bending stress can be minimized. C: bend radius of the cable be as large as possible. Third, the servo motor shaft allowable load A: Ensure that the installation and operation to the servo motor shaft radial and axial load control within the specified value of each model. B: When installing a rigid coupling to be extra careful, especially excessive bending load may cause damage to the shaft and bearing wear or C: best use of flexible couplings, so that the radial load is less than the allowable value, This material is designed for high mechanical strength of the servo motor design. D: About permitted axle load, see "permissible axle load table" (manual). Fourth, the servo motor is installed Note A: When installing / removing the coupling member to the servo motor shaft, not directly tap the shaft with a hammer. (Hammer shaft directly tap the other end of the servo motor shaft encoder to be knocked bad) B: striving to make the shaft is aligned to the best (possible cause of bad vibrations or bearing original text