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| No.13654841

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Information Name: | MBDHT2510 |
Published: | 2015-02-04 |
Validity: | 3000 |
Specifications: | |
Quantity: | 200.00 |
Price Description: | |
Detailed Product Description: | MBDHT2510 MBDHT2510 Panasonic Panasonic offer Panasonic supplier MBDHT2510 2 Spot price MBDHT25101 reliability and low failure rate 3 sales maintenance Zhang Gong 182 019 88 309 QQ 8788 56 087 4 5 How much money where sales 6 Nanjing Panasonic Panasonic sales and service center 7 Panasonic new original factory warranty 8 9 10 servo information detailed instructions 11 low sales servo motor quality assurance welcome to discuss 12 13 14 original one year warranty sales maintenance department Hangzhou Matsushita Panasonic Jinan sales service center 15 16 17 where servo sell Panasonic sales center in Shenyang 18 cost is very high so that the servo turns 19 21 20 simple superiority to run high-performance Panasonic servo motor :( a). Automatic adjustment Features: 1. High-performance real-time automatic gain adjustment according to the load inertia weight change, and the adaptive filter with, from low to high rigidity rigidity can automatically adjust the gain. 3. The vertical axis varies the direction of rotation and produce different load torque can also be automatically adjusted. 4. With abnormal speed detection function, abnormal speed thus generated gain adjustment process can be adjusted to normal. 5. The display panel operations, you can monitor real-time adjustments, while setting and confirmation b) high-speed response characteristics: 1. Speed ??response frequencies up to 1KHz. Also has high-performance mechanical adaptability 2. built instantaneous speed observer, high-speed, high-resolution detection of the motor speed. 4. Whether it is easy to produce a conveyor belt driven mechanical resonance, or high mechanical rigidity of the screw drive, you can automatically adjust the performance capabilities to achieve high-speed positioning. (C) low vibration characteristics: 1. Not only adaptive filter. And even if you set the value of the vibration frequency and filter inaccurate, it will not lead to instability. 2. Built-in adaptive filter that can automatically adjust the notch filter frequency depending on the mechanical resonance frequency. 3. The noise can be controlled due to mechanical instability and resonance frequency variation occurs. It also has two built-in notch filter 4. Unlike the adaptive filter filters the two independent channels. 5. Two notch filters can 1Hz units, respectively, set the frequency and amplitude of the notch. 6. Built-in two-channel vibration suppression filter, can suppress the vibration of low mechanical rigidity when starting and stopping production. 7. The two frequency channels, may be automatically switched depending on the direction of rotation; or may correspond to the mechanical position of the vibration frequency changes due to external input switching signal generated caused. A series Panasonic servo motor an agent, a new original, special spot, the day of delivery, commonly used models: the title of this model for the servo motor; Panasonic A4 series AC servo motor, a widely used in high-precision CNC machinery, packaging, electronic equipment, electronics, non-standard, cutting, molding materials, processing equipment, textile equipment, machine tools, electronics, other scale production. Two main characteristics; high degree of integration, small size, relatively high cost,> reliability, and low failure rate> response speed to meet the general requirements, the use of more stable control of three complete title of this type of servo drive is; Panasonic A4 series AC servo drives, a widely used in high-precision CNC machinery, packaging, electronic equipment, electronic, non-standard, cutting, molding materials, processing equipment, textile equipment, machine tools, electronics, other scale production. Two main characteristics; high degree of integration, small size, relatively high cost,> reliability, and low failure rate> response speed to meet the general requirements, the use of more stable control of the motor has three complete in all walks of life. wide range of applications, while in use will be many problems, including motor vibration is relatively easily in daily production and life encounter. Hazard vibration motor vibration motor will accelerate a motor bearing wear, so that the normal life of the bearing is shortened, while the vibration motor winding insulation will make fall. Due to vibration of the motor cable loose ends tied, causing friction between the ends of windings, insulation resistance, insulation shortened life expectancy caused by severe breakdown. In addition, the motor vibration can cause mechanical damage dragged, affecting the normal working around equipment, loud noise. CAUSE 2 motor vibration motor vibration caused by nothing more than the reasons for both mechanical and electromagnetic. Mainly mechanical fastening feet strong, basic table tilt, uneven; bearing damage, bending the shaft, and they drag the center axis of the motor mechanical axis center inconsistent; stator and rotor core magnetic center of inconsistency, poor rotor balancing, etc. . The main aspects of the existence of electromagnetic three-phase voltage imbalance, motor single phase operation. Phase current imbalance, each phase resistance reactance unbalance motor asymmetry run. After rewinding motor winding connection error, squirrel cage rotor broken bars, short ring cracking. 3 Check and eliminate vibration motor vibration motor than the usual large, vibrating table should be used along the horizontal and vertical directions of vibration measurement values ??for each section, and make the appropriate records. Listen to the voice of the internal cavity of the motor stator and bearing rotation sound, check the foot, as no significant anomalies, disengage the drag is used machinery, motor idling alone to determine the vibration of the motor itself, mechanical vibration or drag caused. In the production of motor repairs will find various reasons after the three-phase winding magnetic potential asymmetry caused by the motor at no load or low-load, manifested vibration is not very clear, but with a heavier load, once connected, the motor vibration will gradually intensified. We often used in the production of power-off method for verifying distinguish vibration due to electromagnetic or mechanical causes. Power-off method that is running at the rated speed of the motor to take a sudden power failure, if suddenly reduce vibration, can be judged by the electromagnetic causes, if the vibration change is not large, it may be due to mechanical reasons . Mechanical vibrations caused for, if as a result of bearing wear, should be replaced immediately with models bearing; if the shaft due to bending deformation, it must be calibrated or replace the shaft axis; Ruoyin to corner fastening is not strong, then re-tighten it tightly . Foundation strong enough, platen rugged seemingly minor problems, but often the most direct cause of vibration. I plant a large high-voltage motor vibration, repeated center alignment, but failed to eliminate vibration motor after hanging open, found by two steel base platen splicing, side plates slightly higher than the other side Low, but not polished flat seam stitching, and just at the lower side of the motor feet, despite the alignment of the motor, but in fact there are many places to form a point-contact surface, the motor center and the mechanical center has only one alignment the illusion of a running motor vibration surely inevitable. Stitching cut taken by welding, soldering and re-polished smooth, the motor again after re-alignment, try instead to increase the transfer of vibration, the analysis and find out the reasons later, it was found by gas cutting steel, but also by welding, thermal damage caused by certain the strength has been a serious decline, after the formation of the resonance of motor rotation and steel, so the vibration but increased again after a foundation countertops, was able to eliminate. Another rotor balancing is the root cause of poor vibration motor at the factory, rotor balancing check has been qualified, but in the process of repairing a motor (high-voltage motors are extraordinary repairs), often do not pay attention to the mark Scale this link, by balancing check unauthorized removal of a component as a whole, after the reinstall, will adversely balancing, resulting in vibration motor, only to re-check method to eliminate balancing. Respect for electromagnetic vibration caused from the power start to start checking. Check the phase voltage is balanced, with a clamp meter to measure phase current is balanced, there is no existence of single-phase operation, the production found in the motor terminal box end connection is not strong because of the tightening, often blown, causing the single-phase operation, here should strengthen inspection and eliminated. If measured by the clamp meter and found that the three-phase current imbalance, and when the hands swing high and sometimes low, indicating that there is a cage rotor bar breakage. You should immediately stop the motor is running, turn off the power, out of the rotor inspection, repair. In addition, the resistance should measure three-phase stator windings, check winding symmetry, if the resistance value is unbalanced, then there is open welding parts, it should be checked out of the rotor after re-welding. Previous: 6 kinds of three-phase asynchronous motor starting method selection and compare Next: How to choose a more suitable motor, direct start immediate advantage is that the necessary equipment to start small, simple start-up mode, and low cost. Direct current motor start in theory, as long as the line that supplies power to the motor and transformer capacity is about five times the normal running of the motor capacity greater than five times, can be started directly. This requirement for a small capacity motor easy to implement, so the vast majority are small-capacity motor started directly, without the buck starts. For large-capacity motor, on one hand is to provide power line and transformer capacity is difficult to meet the conditions of the motor started directly, on the other hand a strong impact on the power grid and the motor starting current, affecting the life of the motor on the grid negative, so Start the motor and the motor can not directly be large-capacity buck starts. You can start directly with bakelite switch, steel switches, air switch (circuit breaker) and so close to achieve the motor operation, jog control, speed control, Reversible control, you can also use limit switches, AC contactor, time motor relays, etc. to achieve remote operation, jog control, speed control, Reversible control, automatic control. 2, with the self-dual step-down transformer autotransformer start using step-down start, proportional to the square of the motor to reduce the starting current and starting torque and its terminal voltage, in the case of start-up current of the same access to high starting rotation. Such as starting voltage drops to 65% of rated voltage, the starting current is 42% full voltage starting current, starting torque is 42% of the full voltage starting torque. Auto-transformer buck starts advantage is that you can direct manual control can also be used to automatically control AC contactor, durable, low maintenance cost, suitable for all the no-load and light load start asynchronous motors used widely in the production practice applications. The disadvantage is that the more expensive manual to configure auto-transformer box (self-dual compensation box), automatic control to configure auto-transformer, AC contactor and other startup equipment and components. 3, Y- △ △ buck starts stator windings connected motor startup connected to Y, speed close to the rated speed when running into △ used in this way when activated, each phase stator winding is reduced to 58% of the supply voltage 33% starting current for direct start-up, 33% starting torque for direct start-up. Starting current, starting torque is small. Y- △ buck starts advantage is no need to purchase a boot device, there is a startup switch or AC contactor and other control devices can be achieved, the disadvantage is that the motor can only be used △ connection, x large asynchronous motor is not overloaded start. 4, wound rotor string resistance startup phase asynchronous motor, the rotor windings are connected through slip rings and resistance. External equivalent series resistance of the rotor winding resistance increases, reducing the induced current in the rotor windings. From a certain perspective, but also like a motor transformer secondary current, the motor field winding current is equivalent to the primary winding of the transformer is reduced accordingly. According to the characteristics of the motor, the rotor will reduce the series resistance of the motor speed, improved rotating torque, a better startup performance. In this start-up mode, since the resistance is constant, the startup resistor is divided into several stages, during startup gradual resection, can obtain smoother startup process. Based on the above analysis in mind: To get a more stable starting characteristics, must be added to start the series, which will make the device more complicated. With a string on the rotor frequency sensitive rheostat boot method, you can make start more smoothly. Frequency sensitive rheostat start principle is: when the power is turned on the motor stator windings of the motor started, due to the frequency sensitive rheostat in series with the motor rotor speed is very low, the starting current is very small, so the higher the frequency of the rotor, f2≈f1, frequency sensitive rheostat The iron loss is large, with the enhancement of the speed, the rotor current frequency is gradually reduced, the inductance of the impedance decreases. This is equivalent to start the removal process stepless resistance. When the speed rises to near steady value, the frequency sensitive resistor is shorted, the boot process ends. Rotor string resistance or frequency sensitive rheostat is good starting performance, can override the start, because the only suitable for expensive and complex three-phase asynchronous motor winding, so just the start control, speed control requires a variety of lifts, conveyors, traffic and other industries. 5, the soft starter soft starter motor control device is a set of novel motor soft start, soft stop, and a variety of energy-saving light load protection functions in one, foreign called Soft Starter. Its main components are connected in series with the power supply and charged with three opposite parallel thyristor AC voltage regulator motor. Use different methods to change the firing angle of the thyristor, thyristor regulator can adjust the output voltage of the circuit. Throughout the starting process, the soft starter is a smooth boost output process full advantage until thyristor conduction, motor soft starters work at the rated voltage is reduced voltage start, starting current, suitable for all load light load asynchronous motors use. The disadvantage is that the starting torque is small, does not apply to heavy start large motors. 6, the inverter usually, the fixed voltage and frequency AC power into a voltage or variable frequency alternating current apparatus called "drive." The device is first necessary to convert the three-phase or single-phase AC power to DC (DC). Then put current (DC) is converted into a three-phase or single-phase AC power (AC). Drive while changing the output frequency and voltage, which is changing the n0 motor running on a curve, the curve parallel to the motor running down. So you can drive the motor with a smaller starting current, larger starting torque converter that can start overloading load. Inverter with voltage, frequency modulation, regulation, control and other basic functions, the application of modern science and technology, expensive but good performance, the internal structure of complex but easy to use, so do not just used to start the motor, but the wide range of applications to various fields, a variety of power, variety of shape, a variety of volume, and others have a variety of uses. With the development of technology, cost reduction, the drive must also be more widely used. Previous: Three-phase asynchronous motor to run single-phase six methods Next: cause of the problem caused by motor vibration analysis more |
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Copyright © GuangDong ICP No. 10089450, Ningbo Dongchuan Machinery Co., Ltd. All rights reserved.
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You are the 6691 visitor
Copyright © GuangDong ICP No. 10089450, Ningbo Dongchuan Machinery Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility