Supply PARKER motor NX860VAJR9000 during National Day

Panle (Shanghai) Electric Co., LtdWe specialize in the import trade and engineering services of various foreign industrial control automation products. Our main business includes hydraulic products, hardware tools, instruments, and various industrial control products from Europe, the United States, and other foreign countries. We have our own independent procurement channels and source procurement overseas.

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We look forward to working with you to create a better tomorrow together.

Panle (Shanghai) Electric Co., Ltd

Name: Zhong Qipeng

A servo motor refers to an engine that controls the operation of mechanical components in a servo system, and is an indirect transmission device that supplements the motor.

Servo motors can control speed and position accuracy very accurately, and can convert voltage signals into torque and speed to drive control objects. The rotor speed of a servo motor is controlled by input signals and can react quickly. In automatic control systems, it is used as an actuator and has characteristics such as small electromechanical time constant, high linearity, and starting voltage. It can convert the received electrical signal into angular displacement or angular velocity output on the motor shaft. It is divided into two categories: DC and AC servo motors. Its main feature is that when the signal voltage is zero, there is no self rotation phenomenon, and the speed decreases uniformly with the increase of torque.

1. A servo mechanism is used to adjust the position and orientation of an object

An automatic control system where the output controlled variable can follow any changes in the input target (or given value). Servo mainly relies on pulses for positioning. Basically, it can be understood as follows: when a servo motor receives one pulse, it will rotate the corresponding angle of one pulse to achieve displacement. Because servo motors have the function of emitting pulses, they will emit a corresponding number of pulses every time they rotate an angle. This forms a response or closed loop with the pulses received by the servo motor. In this way, the system will know how many pulses have been sent to the servo motor and how many pulses have been received back. In this way, the rotation of the motor can be accurately controlled to achieve precise positioning, which can reach 0.001mm. DC servo motors are divided into brushed and brushless motors. Brushed motors have low cost, simple structure, large starting torque, wide speed range, easy control, and require maintenance. However, maintenance is inconvenient (such as replacing carbon brushes) and generates electromagnetic interference, which has environmental requirements. Therefore, it can be used in cost sensitive general industrial and civilian applications.

Brushless motors have small size, light weight, high output, fast response, high speed, low inertia, smooth rotation, and stable torque. The control is complex and easy to achieve intelligence. Its electronic commutation method is flexible and can be square wave commutation or sine wave commutation. The motor is maintenance free, highly efficient, operates at low temperatures, emits minimal electromagnetic radiation, has a long lifespan, and can be used in various environments.

2. AC servo motors are also brushless motors, divided into synchronous and asynchronous motors. Currently, synchronous motors are generally used in motion control, which have a large power range and can achieve high power. High inertia, low rotational speed, and rapidly decreases with increasing power. Therefore, it is suitable for applications that operate smoothly at low speeds.

3. The rotor inside the servo motor is a permanent magnet, and the U/V/W three-phase electricity controlled by the driver forms an electromagnetic field. The rotor rotates under the action of this magnetic field. At the same time, the encoder provided by the motor feeds back the signal to the driver, and the driver compares the feedback value with the target value to adjust the angle of rotor rotation. The accuracy of servo motors depends on the accuracy (number of lines) of the encoder.

The functional difference between AC servo motor and brushless DC servo motor: AC servo is better because it is controlled by sine wave and has less torque ripple. DC servo is a trapezoidal wave. But DC servo is relatively simple and cheap.

Development History

Since the Indramat branch of Rexroth company of MANNESMANN in Germany participated in the Hanover Trade Fair in 1978

The official launch of MAC permanent magnet AC servo motor and drive system marks that this new generation of AC servo technology has entered the practical stage. By the mid to late 1980s, each company had a complete series of products. The entire servo device market has shifted towards AC systems. Early simulation systems had shortcomings in areas such as zero drift, anti-interference, reliability, accuracy, and flexibility, and were not yet able to meet the requirements of motion control. In recent years, with the application of microprocessors and new digital signal processors (DSPs), digital control systems have emerged, and the control part can be performed by software, which are respectively called DC servo systems and three-phase permanent magnet AC servo systems.

So far, high-performance electric servo systems mostly use permanent magnet synchronous AC servo motors, and control drivers mostly use fast and accurate positioning fully digital position servo systems. Typical manufacturers include Siemens from Germany, Colemorgen from the United States, Panasonic and Yaskawa from Japan.

The small AC servo motors and drivers launched by Yaskawa Electric Manufacturing Co., Ltd. in Japan, among which the D series is suitable for CNC machine tools (speed of 1000r/min, torque of 0.25-2.8N. m), and the R series is suitable for robots (speed of 3000r/min, torque of 0.016-0.16N. m). Afterwards, six series including M, F, S, H, C, and G were launched. In the 1990s, new D series and R series were successively launched. The torque fluctuation has been reduced from 24% to 7% and reliability has been improved by replacing the old series of rectangular wave drive, 8051 microcontroller control with sine wave drive, 80C, 154 CPU, and gate array chip control. In this way, a relatively complete system consisting of eight series (with a power range of 0.05-6kW) was formed in just a few years, meeting the different needs of working machinery, handling mechanisms, welding robots, assembly robots, electronic components, processing machinery, printing machines, high-speed winding machines, winding machines, etc.

Fanuc, a well-known Japanese company for producing CNC machine tools, also introduced the S series (13 specifications) and L series (5 specifications) permanent magnet AC servo motors in the mid-1980s. The L series has a small moment of inertia and mechanical time constant, making it suitable for position servo systems that require particularly fast response.

Other Japanese manufacturers, such as Mitsubishi Electric (HC-KFS, HC-MFS, HC-SFS, HC-RFS, and HC-UFS series), Toshiba Seiki (SM series), Okuma Iron Works (BL series), Sanyo Electric (BL series), and Lishi Electric (S series), have also entered the competition for permanent magnet AC servo systems.

The MAC series AC servo motors of Rexroth's Indramat division in Germany have a total of 7 machine base numbers and 92 specifications.

Siemens' IFT5 series three-phase permanent magnet AC servo motors are divided into two categories: standard and short, with a total of 8 machine base sizes and 98 specifications. It is said that compared with the IHU series of DC servo motors with the same output torque, the weight of this series of AC servo motors is only half of the latter. The matching transistor pulse width modulation driver 6SC61 series can be used to control motors with six axes.

Bosch, a German company, produces the SD series (17 specifications) of ferrite permanent magnets and the SE series (8 specifications) of rare earth permanent magnets for AC servo motors and Servodyn SM series drive controllers.

Gettys, a well-known servo device manufacturing company in the United States, once served as a Motion Control Division of Gould Electronics, producing M600 series AC servo motors and A600 series servo drives. Later merged into AEG, restored the Gettys name, and launched the A700 fully digital AC servo system.

The Drive Division of A-B (ALLEN-BRADLEY) Company in the United States produces 1326 ferrite permanent magnet AC servo motors and 1391 AC PWM servo controllers. The electric motor includes 3 machine base numbers and a total of 30 specifications.

I. D. (Industrial Drives) is a well-known industrial drive division of Kollmorgen in the United States, which has produced 41 specifications of brushless servo motors and BDS3 servo drives in three series: BR-210, BR-310, and BR-510. Since 1989, a new series of Goldline permanent magnet AC servo motors have been launched, including three categories: B (small inertia), M (medium inertia), and EB (explosion-proof), with five machine base sizes of 10, 20, 40, 60, and 80. Each category has 42 specifications, all of which are made of neodymium iron boron permanent magnet material. The torque range is 0.84-111.2N. m, and the power range is 0.54-15.7 kW. The accompanying drives include BDS4 (analog), BDS5 (digital, including position control), and Smart Drive (digital) series, with a large continuous current of 55A. The Goldline series represents The level of contemporary permanent magnet AC servo technology.

Ireland, formerly a branch of Kollmorgen overseas, has now merged into AEG and is known for producing DC servo motors, DC torque motors, and servo amplifiers. Produce 17 specifications of SmCo permanent magnet AC servo motors and eight controllers for BHT1100, 2200, and 3300 machine base sizes.

Alsthom Group in France produces 14 specifications of LC series (long) and GC series (short) AC servo motors at its Parvex factory in Paris, as well as AXODYN series drives.

The former Soviet Union developed two series of AC servo motors for CNC machine tools and robot servo control. The Д By series adopts ferrite permanent magnets and has two machine base numbers. Each machine base number has three types of iron core lengths and two types of winding data, with a total of 12 specifications and a continuous torque range of 7-35N. m. The 2 Д By series uses rare earth permanent magnets, with 6 machine base sizes and 17 specifications, a torque range of 0.1-170N. m, and is equipped with a 3 ДБ type controller.

In recent years, Panasonic Corporation of Japan has launched the fully digital MINAS series AC servo system, among which the permanent magnet AC servo motor has the MSMA series small inertia type, with power ranging from 0.03 to 5kW, a total of 18 specifications; There are three series of medium inertia motors: MDMA, MGMA, and MFMA, with a power range of 0.75 to 4.5 kW and a total of 23 specifications. The MHMA series of high inertia motors has a power range of 0.5 to 5 kW and 7 specifications.

Samsung, a South Korean company, has developed fully digital permanent magnet AC servo motors and drive systems in recent years. The FAGA AC servo motor series includes various models such as CSM, CSMG, CSMZ, CSMD, CSMF, CSMS, CSMH, CSMN, and CSMX, with power ranging from 15W to 5kW.

Nowadays, the comprehensive indicator of Powerrate is commonly used as the quality factor of servo motors to measure and compare the dynamic response performance of various AC/DC servo motors and stepper motors. The power change rate represents the ratio of the continuous (rated) torque of the motor to the rotational inertia of the rotor.

According to the calculation and analysis based on the power change rate, it can be concluded that the technical specifications of permanent magnet AC servo motors are based on the Goldline of I.D in the United States

Selection comparison

Communication servo motor

The structure of the stator of an AC servo motor is basically similar to that of a capacitor phase separated single-phase asynchronous motor The stator is equipped with two windings located 90 ° apart from each other, one of which is the excitation winding Rf, which is always connected to the AC voltage Uf; The other is to control winding L and connect the control signal voltage Uc. Therefore, AC servo motors are also known as two servo motors.

The rotor of an AC servo motor is usually designed as a squirrel cage, but in order to provide the servo motor with a wide speed range, linear mechanical characteristics, no "self rotation" phenomenon, and fast response performance, it should have two characteristics compared to ordinary motors: high rotor resistance and low moment of inertia. There are currently two types of rotor structures that are widely used: one is a squirrel cage rotor made of high resistivity conductive materials with high resistivity bars. In order to reduce the rotational inertia of the rotor, the rotor is made slender; Another type is a hollow cup-shaped rotor made of aluminum alloy, with a very thin cup wall of only 0.2-0.3mm. In order to reduce the magnetic resistance of the magnetic circuit, a fixed internal stator needs to be placed inside the hollow cup-shaped rotor Hollow cup-shaped rotors have a small moment of inertia, rapid response, and smooth operation, making them widely used.

When there is no control voltage, only the pulsating magnetic field generated by the excitation winding is present in the stator of the AC servo motor, and the rotor remains stationary. When there is a control voltage, a rotating magnetic field is generated inside the stator, and the rotor rotates in the direction of the rotating magnetic field. Under constant load, the speed of the motor varies with the magnitude of the control voltage. When the phase of the control voltage is opposite, the servo motor will reverse.

Permanent magnet AC servo motor

Since the 1980s, with the development of integrated circuits, power electronics technology, and AC variable speed drive technology, permanent magnet AC servo drive technology has made outstanding progress. Famous electrical manufacturers in various countries have successively launched their own AC servo motor and servo drive series products and continuously updated them. The communication servo system has become the main development direction of contemporary high-performance servo systems, which poses a crisis of phasing out the original DC servo. After the 1990s, the commercialized AC servo systems in various countries around the world were driven by sine wave motors with fully digital control. The development of communication servo drive devices in the field of transmission is advancing rapidly.

The main advantages of permanent magnet AC servo motors compared to DC servo motors are:

⑴ Without electric brushes and commutators, it works reliably and requires low maintenance and upkeep.

⑵ The heat dissipation of the stator winding is relatively convenient.

⑶ Small inertia, easy to improve the system's speed.

⑷ Suitable for high-speed and high torque working conditions.

⑸ Under the same power, it has a smaller volume and weight.

Comparison between servo motors and single-phase asynchronous motors

The working principle of AC servo motors is similar to that of phase separated single-phase asynchronous motors, but the rotor resistance of the former is much larger than that of the latter. Therefore, compared with single machine asynchronous motors, servo motors have three significant characteristics:

1. High starting torque

Due to the high rotor resistance, there is a significant difference in the torque characteristic curve compared to ordinary asynchronous motors. It can make the critical slip rate S0>1, which not only makes the torque characteristics (mechanical characteristics) closer to linearity, but also has a larger starting torque. Therefore, when the stator has a control voltage, the rotor immediately rotates, which has the characteristics of fast starting and high sensitivity.

2. Wide operating range

3. No rotation phenomenon

A servo motor that operates normally will immediately stop running as soon as the control voltage is lost. When the servo motor loses control voltage, it operates in a single-phase state. Due to the high resistance of the rotor, the two opposing rotating magnetic fields in the stator interact with the rotor to produce two torque characteristics (T1-S1, T2-S2 curves) and a composite torque characteristic (T-S curve)

The output power of AC servo motors is generally 0.1-100W. When the power frequency is 50Hz and the voltage is 36V, 110V, 220, 380V; When the power frequency is 400Hz, there are various voltages such as 20V, 26V, 36V, 115V, etc.

The communication servo motor runs smoothly and has low noise. However, the control characteristics are nonlinear, and due to the high rotor resistance, large losses, and low efficiency, compared with DC servo motors of the same capacity, they are bulky and heavy, so they are only suitable for low-power control systems of 0.5-100W.

debugging method

1. Initialize parameters

Initialize parameters before wiring.

On the control card: select the appropriate control mode; Reset the PID parameters to zero; When the control card is powered on, the default enable signal is turned off; Save this state to ensure that the control card is in this state when powered on again.

On the servo motor: set the control mode; Enable external control through settings; Gear ratio of encoder signal output; Set the proportional relationship between control signal and motor speed. Generally speaking, it is recommended to set the large design speed in servo operation to correspond to a control voltage of 9V. For example, Shanyang sets the speed corresponding to 1V voltage, with a factory value of 500. If you only want the motor to work below 1000 rpm, then set this parameter to 111.

2. Wiring

Power off the control card and connect the signal line between the control card and the servo. The following lines must be connected: analog output line of the control card, enable signal line, and encoder signal line of the servo output. After rechecking the wiring for any errors, power on the motor and control card (as well as the PC). At this point, the motor should not move and can be easily rotated with external force. If not, check the setting and wiring of the enable signal. Rotate the motor with external force and check if the control card can correctly detect the change in motor position. Otherwise, check the wiring and settings of the encoder signal

3. Test direction

For a closed-loop control system, if the direction of the feedback signal is incorrect, the consequences will definitely be catastrophic. Activate the servo signal through the control card. At this point, the servo should rotate at a lower speed, which is the legendary 'zero drift'. Generally, there are instructions or parameters on the control card to suppress zero drift. Use this command or parameter to see if the speed and direction of the motor can be controlled through this command (parameter). If it cannot be controlled, check the parameter settings of the analog wiring and control mode. Confirm that a positive number is given, the motor rotates forward, and the encoder count increases; Given a negative number, the motor rotates in reverse and the encoder count decreases. If the motor has a load and limited travel, do not use this method. Do not apply excessive voltage during testing, it is recommended to be below 1V. If the direction is not *, you can modify the parameters on the control card or motor to make it *.

4. Suppress zero drift

In the closed-loop control process, the presence of zero drift will have a certain impact on the control effect, and it should be suppressed. Use control cards or servo to suppress zero drift parameters, carefully adjust them to make the motor speed approach zero. Due to the inherent randomness of zero drift, there is no need to require the motor speed to be zero.

5. Establish closed-loop control

Release the servo enable signal again through the control card, and input a smaller proportional gain on the control card. As for how much it is considered small, it can only be felt. If you are really worried, enter the small value allowed by the control card. Turn on the enable signals for the control card and servo. At this point, the motor should be able to roughly make movements according to the motion instructions.

6. Adjust closed-loop parameters

Fine tuning the control parameters to ensure that the motor moves according to the instructions of the control card is a necessary task, and this part of the work is more based on experience, which can only be omitted here.

performance comparison

Performance comparison between servo motor and stepper motor

As an open-loop control system, stepper motors have essential connections with modern digital control technology. In current domestic digital control systems, stepper motors are widely used. With the emergence of fully digital AC servo systems, AC servo motors are increasingly being used in digital control systems. In order to adapt to the development trend of digital control, stepper motors or fully digital AC servo motors are mostly used as executive motors in motion control systems. Although the two have similar control methods (pulse train and directional signal), there are significant differences in their performance and application scenarios. Now let's compare the performance of the two.

1、 Different control precision

The step angle of a two-phase hybrid stepper motor is generally 1.8 ° and 0.9 °, while the step angle of a five phase hybrid stepper motor is generally 0.72 ° and 0.36 °. Some high-performance stepper motors also have smaller step angles after subdivision. The step angle of the two-phase hybrid stepper motor produced by Sanyo Denki can be set to 1.8 °, 0.9 °, 0.72 °, 0.36 °, 0.18 °, 0.09 °, 0.072 °, 0.036 ° through a toggle switch, which is compatible with the step angles of two-phase and five phase hybrid stepper motors.

The control accuracy of the AC servo motor is ensured by the rotary encoder at the rear end of the motor shaft. Taking Sanyo's fully digital AC servo motor as an example, for motors with standard 2000 line encoders, due to the use of quadruple frequency technology inside the driver, its pulse equivalent is 360 °/8000=0.045 °. For a motor with a 17 bit encoder, for every 131072 pulses received by the driver, the motor rotates once, resulting in a pulse equivalent of 360 °/131072=0.0027466 °, which is 1/655 of the pulse equivalent of a stepper motor with a step angle of 1.8 °.

2、 Different low-frequency characteristics

Stepper motors are prone to low-frequency vibration at low speeds. The vibration frequency is related to the load condition and the performance of the driver. It is generally believed that the vibration frequency is half of the no-load take-off frequency of the motor. The low-frequency vibration phenomenon determined by the working principle of the stepper motor is very detrimental to the normal operation of the machine. When a stepper motor operates at low speeds, damping techniques should generally be used to overcome low-frequency vibration phenomena, such as adding dampers to the motor or using subdivision techniques on the driver.

The AC servo motor runs very smoothly, and there is no vibration even at low speeds. The communication servo system has resonance suppression function, which can cover the insufficient rigidity of machinery, and the system has frequency analysis function (FFT) inside, which can detect the resonance point of machinery and facilitate system adjustment.

3、 Different moment frequency characteristics

The output torque of a stepper motor decreases as the speed increases, and sharply decreases at higher speeds, so its working speed is generally between 300-600 RPM. AC servo motors have constant torque output, which means they can output rated torque within their rated speed (usually 2000RPM or 3000RPM), and constant power output above the rated speed.

4、 Different overload capacities

Stepper motors generally do not have overload capacity. AC servo motors have strong overload capacity. Taking Sanyo AC servo system as an example, it has the ability to handle speed overload and torque overload. Its high torque is two to three times the rated torque, which can be used to overcome the inertia moment of the inertial load at the moment of starting. Stepper motors do not have this overload capacity. In order to overcome this inertia torque during selection, it is often necessary to choose motors with larger torque. However, machines do not require such large torque during normal operation, resulting in torque waste.

5、 Different operational performance

The control of stepper motors is open-loop control. If the starting frequency is too high or the load is too large, it is easy to cause step loss or stalling. If the speed is too high when stopping, it is easy to cause overshoot. Therefore, in order to ensure its control accuracy, the problem of speed increase and decrease should be handled well. The AC servo drive system is a closed-loop control system, and the driver can directly sample the feedback signal of the motor encoder. The internal structure consists of a position loop and a speed loop, and generally does not cause step loss or overshoot of the stepper motor, making the control performance more reliable.

6、 Different speed response performance

It takes 200-400 milliseconds for a stepper motor to accelerate from rest to operating speed (usually a few hundred revolutions per minute). The acceleration performance of the AC servo system is good. Taking the Shanyang 400W AC servo motor as an example, it only takes a few milliseconds to accelerate from static to its rated speed of 3000RPM, which can be used in control situations that require fast start stop.

In summary, AC servo systems outperform stepper motors in many performance aspects. But in some situations where the requirements are not high, stepper motors are often used as executive motors. Therefore, in the design process of the control system, it is necessary to comprehensively consider various factors such as control requirements and costs, and select appropriate control motors.

Selection calculation

1、 Confirmation of rotational speed and encoder resolution.

2、 Conversion of load torque on motor shaft and calculation of acceleration and deceleration torque.

3、 Calculate the load inertia and match the inertia. Taking Yaskawa servo motors as an example, the inertia matching of some products can reach 50 times, but the smaller the actual value, the better for accuracy and response speed.

4、 The calculation and selection of regenerative resistors, for servos, generally require external configuration for voltages above 2kw.

5、 Cable selection, encoder cable twisted pair shielding, for Japanese products such as Yaskawa servo, the encoder value is 6-core, and the incremental type is 4-core.

Braking method

Users often confuse the functions of electromagnetic braking, regenerative braking, and dynamic braking, and choose the wrong accessories.

The dynamic brake is composed of dynamic braking resistors, which shorten the mechanical feed distance of the servo motor through energy consumption braking in case of faults, emergency stops, or power outages.

Regenerative braking refers to the energy generated by the braking of a servo motor during deceleration or parking, which is fed back to the DC bus through an inverter circuit and absorbed by a resistance capacitance circuit.

Electromagnetic braking is a mechanical device that locks the shaft of a motor.

The difference between the three:

(1) Regenerative braking must only be effective when the server is working normally, and the motor cannot be braked in case of faults, emergency stops, power outages, and other situations. Dynamic brakes and electromagnetic brakes do not require power supply during operation.

(2) The regenerative braking system operates automatically, while the dynamic and electromagnetic braking systems require external relay control.

(3) Electromagnetic braking is usually started after SV and OFF, otherwise it may cause amplifier overload. Dynamic braking is usually started after SV, OFF or main circuit power failure, otherwise it may cause overheating of the dynamic braking resistor.

Precautions

1、 Protection of servo motor oil and water

A: Servo motors can be used in places that are susceptible to water or oil droplets, but they are not fully waterproof or oil resistant. Therefore, servo motors should not be placed or used in water or oil contaminated environments.

B: If the servo motor is connected to a reduction gear, an oil seal should be added when using the servo motor to prevent oil from the reduction gear from entering the servo motor

C: Do not immerse the servo motor cable in oil or water.

2、 Servo motor cable → Reduce stress

A: Ensure that the cable is not subjected to moments or vertical loads due to external bending forces or its own weight, especially at cable outlets or connections.

B: In the case of servo motor movement, the cable (the one configured with the motor) should be firmly fixed to a stationary part (relative to the motor), and an additional cable installed in the cable support should be used to extend it, so that bending stress can be reduced to a minimum.

C: The bend radius of the cable should be as large as possible.

3、 Allowable shaft end load of servo motor

A: Ensure that the radial and axial loads applied to the servo motor shaft during installation and operation are controlled within the specified values for each model.

B: Be extra careful when installing a rigid coupling, especially as excessive bending loads may cause damage or wear to the shaft end and bearings

C: Use a flexible coupling to keep the radial load below the allowable value, which is specifically designed for servo motors with high mechanical strength.

D: Regarding the allowable axle load, please refer to the "Allowable Axle Load Table" (user manual).

4、 Attention to servo motor installation

A: Do not directly strike the shaft end with a hammer when installing/removing coupling components to the servo motor shaft end. (If the hammer hits the shaft end directly, the encoder on the other end of the servo motor shaft will be damaged.)

B: Make every effort to align the shaft end to the correct state (improper alignment may result in vibration or bearing damage).

Characteristic comparison

Characteristics of DC brushless servo motor

Small moment of inertia, low starting voltage, and low no-load current; Abandoning the contact reversing system greatly increases the motor speed, reaching up to 100000 rpm; Brushless servo motors can control speed, position, torque, etc. without the need for encoders during servo control; There is no wear of the electric brush. In addition to high speed, it also has the characteristics of long service life, low noise, and no electromagnetic interference.

Characteristics of DC brushed servo motor

1. Small size, fast action and response, large overload capacity, wide speed range

2. High low-speed torque, small fluctuation, smooth operation

3. Low noise, high efficiency

4. Backend encoder feedback (optional) forms advantages such as DC servo

5. Large voltage range and adjustable frequency

scope of application

DC servo motors can be applied in spark machines, robotic arms, precision machines, etc. It can be equipped with a standard encoder and speedometer with high analytical power of 2500P/R at the same time, and can also be equipped with a gearbox to bring reliable accuracy and high torque to mechanical equipment. Good speed regulation, with output power per unit weight and volume greater than that of AC motors and far exceeding that of stepper motors. The torque fluctuation of the multi-level structure is small.

main function

The servo motor is used in a closed loop. That is to say, it constantly transmits signals to the system and corrects its operation based on the signals provided by the system.

Servo motors can also be controlled by microcontrollers.

advantage

Firstly, let's take a look at the advantages of servo motors compared to other motors such as stepper motors

1. Accuracy: Closed loop control of position, speed, and torque has been achieved; Overcoming the problem of stepping motor out of step;

2. Speed: Good high-speed performance, generally rated speed can reach 2000-3000 revolutions per minute;

3. Adaptability: Strong overload resistance, able to withstand loads up to three times the rated torque, especially suitable for situations with instantaneous load fluctuations and fast starting requirements;

4. Stability: Running smoothly at low speeds, there will be no stepping phenomenon similar to that of a stepper motor during low-speed operation. Suitable for occasions with high-speed response requirements;

5. Timeliness: The dynamic response time of motor acceleration and deceleration is short, usually within a few tens of milliseconds;

6. Comfort: significantly reduced heat and noise.

Simply put, it means that the ordinary motor we usually see will continue to rotate for a while due to its own inertia after power failure, and then stop. And servo motors and stepper motors stop at will and leave at will, with extremely fast response times. But there is a phenomenon of stepping out of step in the stepper motor.

There are too many application fields for servo motors. As long as there is a power source and precision requirements, servo motors are generally involved. Equipment with relatively high requirements for process accuracy, processing efficiency, and work reliability, such as machine tools, printing equipment, packaging equipment, textile equipment, laser processing equipment, robots, and automated production lines.

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Welcome to Panle Electric * Germany Imported MADLER Brand Code: type 2012, with border=? 40mm with fitting keynut DIN 6885, Infor: taper bush, type 2012, with bore = ? 40mm with fitting keynut DIN 6885

Welcome to Panle Electric * Germany Imported AMETEK Part #: 71063SE Batch #: 19057015-008 Date Code: 041211-6CH Job #: 203340

Welcome to Panle Electric's Rexroth Servo module R911296724 HMV01.1E-W0030-A-07-NNN imported from Germany

Welcome to Panle Electric's German imported Madler 5.62250520? type? 2012

Welcome to Panle Electric's imported JOUCOMATIC REED-FL5-00 from Germany

Welcome to Panle Electric * German imported LTi DRiVES SO84.032.0020.1070.1

Welcome to Panle Electric * Germany Imported Druck DPI610HC 16MPASF 0.025% FS

Welcome to Panle Electric * Germany Imported BINDER SOCKET | 99-0436-14-05

Welcome to Panle Electric * Germany Imported NS10/15-AM-K5-SK166/300

Welcome to Panle Electric's imported DMC59-MFG600S-DCN from Germany

Welcome to Panle Electric * Germany imported ABB M2AA 132 S 4 2529803-1/02

Welcome to Panle Electric's imported Vogel 1411308 from Germany

Welcome to Panle Electric * German imported parker Double dump PAVC100B32L46B3AP22-PAVC38B2L4BAP15

Welcome to Panle Electric * Germany imported HAHN+KOLB 52142-500

Welcome to Panle Electric * Germany Imported CEMBRE Gmbh HT51-KV 10-240mm

Welcome to Panle Electric * Germany Imported Tuenkers 82M-603K50C8 (L)

Welcome to Panle Electric's imported Baumer BDK16.05A2048-5-5 from Germany

Welcome to Panle Electric * Germany imported Holmatro HHJ 60 H 20 Size:? 80/? 45x200 Technical:Push=610.4kN Pull=452.4kN 720bar

Welcome to Panle Electric * German imported parker 4.00CTBB2HDKGS13A CX19.312/KC558287A

Welcome to Panle Electric's German imported PHOENIX RELAY | ELRW3-24DC/500AC-9I?? 2297057

Welcome to Panle Electric's German imported Eloba 114262-3

Welcome to Panle Electric's imported INTERNORMEN 01NL.250.25G.30.S1.P. from Germany

Welcome to Panle Electric * Germany Imported CASAPPA PLD20/2/CS-GE/25-GD/25-GD/VPEF-180

Welcome to Panle Electric * Germany Imported SIEMENS 6SL3320-1TE32-6AA3

Welcome to Panle Electric * German imported Lechler 71.0L/min AT 2 BAR type: 687.148.17.AK, needle nozzle 3/4

Welcome to Panle Electric's German imported REXROTH Hydraulic Valve RELIEF VALVEx315kg/cm2,1 IN,DBDS20K-1X/315/REXROTH,FOR COMMON ITEM,REXROTH

Welcome to Panle Electric * German imported Samson JL 1040/126 B

Welcome to Panle Electric * Germany Imported Bellofram 960-180-522

Welcome to Panle Electric's imported BENDER STW2 from Germany

Welcome to Panle Electric's imported Eaton TKF-120-S from Germany

Welcome to Panle Electric * German imported parker FLOW SENSOR UC.STI.2144.100 80-380 LPM

Welcome to Panle Electric * Germany imported ASM WS12-200-R1K-L10-SBO-D8

Welcome to Panle Electric * Germany Imported LUKAS ZY 1632.06 EKR 46 N V4

Welcome to Panle Electric's imported Festo QSY-8 from Germany

Welcome to Panle Electric's imported Schneider DRM570730LT from Germany

Welcome to Panle Electric * Germany imported Messko GmbH 635-BT1BC1ZP05SB1A00AA 1196746 0?? - 160??

Welcome to Panle Electric's imported Crompton model from Germany?? 239-302A-X RNG?? 667-1.000mADC SCL?? 150-225AC

Welcome to Panle Electric's imported Hawe WV 16-S from Germany

Welcome to Panle Electric * German imported Tecmotion SM4065-P32/0035-E2-500-157-1

Welcome to Panle Electric's import of KSL Portland from Germany?? ttenzement CEM ???? EN 197-1??

Welcome to Panle Electric * Germany Imported IGUS NW-02-27

Welcome to Panle Electric's imported Siemens 6ES7214-2AD23-0XB0 from Germany

Welcome to Panle Electric's import of FLEXLIFT from Germany? HUBGERAETE? GmbH LAGR-0051?

Welcome to Panle Electric's German imported MARECHAL 3194193

Welcome to Panle Electric * Harting 9670095601 imported from Germany

Welcome to Panle Electric * Germany imported DADCO LJ.300.063.T0, (90.107.00300)

Welcome to Panle Electric * Germany imported HUBNER HOG71 DN 1024 TTL sn.2284469

Welcome to Panle Electric's imported MAGNETROL 961-7DA0-030-9M1-A25A-020 from Germany

Welcome to Panle Electric * Germany Imported REXROTH R911285743 BZM01.3-07

Welcome to Panle Electric * Germany imported kollmorgen il18050a1trc1 05mt2688

Welcome to Panle Electric * Germany Imported ROEHM 4312-151

Welcome to Panle Electric * Germany imported jumo tn60002121

Welcome to Panle Electric * Germany imported SPECK Oil Pump/NP11/7-220L MN/SPECK, NR: 262646/002/3.0KW/2220bar/6.8l/min/1450 1/min/

Welcome to Panle Electric * Germany Imported AIRTAC CS1-F

Welcome to Panle Electric * Minco GmbH TT355TJ1YW imported from Germany

Welcome to Panle Electric's imported ALBRECHT Chuck 12mm/APC20-12 from Germany?? 136 2012 000 0??

Welcome to Panle Electric * Germany Imported KURZ-SILOSYSTEE Solenoid Valve | SOLENOID VALVE | Execution for Flat Valve DN300 NR: 110397

Welcome to Panle Electric's imported Staubli B27583933 from Germany

Welcome to Panle Electric's imported ATOS Amplifier E-BM-AC-01F from Germany

Welcome to Panle Electric * Germany imported Norelem 26102-03001555

Welcome to Panle Electric * Germany imported MIEBACH 0685.SV.02-2.8.D/G.0.32.P

Welcome to Panle Electric * Germany Imported KTR KTR-ROTEX3 28, Supporting the Use of POS1

Welcome to Panle Electric * Germany Imported MARCHEL 125 20 04 DN125 x PN40

Welcome to Panle Electric's German imported DELTA D2004T-250 BA, Range: 0 - 250 bar, Output: 4 - 20 MA HART, L = 110 mm, D = 30 mm

Welcome to Panle Electric * Germany Imported CAMOZZI ONE-WAYTHOTTLEVELVE | SCU604-3/8-CN03

Welcome to Panle Electric's KTR shaft coupling imported from Germany; M/N:R42.55-40 Machine:66' SINOARP PRESS

Welcome to Panle Electric * Germany Imported DMN SCHUTTGUTTECH BUTTERFLY DAMPER | FDV65 25041188

Welcome to Panle Electric's imported Flexlift 21701034 from Germany

Welcome to Panle Electric * Germany Imported TYPE: ADS11.1105 1.6MPa 11-15~70 ℃ G1

Welcome to Panle Electric's German imported DIEFENBACHER 99-0650-37-48-65

Welcome to Panle Electric * Germany Imported LEUZE HRTR 3B/44-95200-S8 Nr.50112465

Welcome to Panle Electric * German imported CeOTronics WIRE-COM HEADSET 0418000

Welcome to Panle Electric's import of PARSYTEC Art. Nr. from Germany: S0028-01-611; REV.I6.1.1

Welcome to Panle Electric's import of STOP-CHOC 42.5 from Germany?? 21.2?? 20,00051467

Welcome to Panle Electric's German imported Rexroth 822 245 412

Welcome to Panle Electric's imported Rexroth 4WE6H6X/EG24N9K4 2Z5LH from Germany

Welcome to Panle Electric's imported Alstom SKBT 40/80 from Germany

Welcome to Panle Electric * Germany Imported ETA Adap-P10-A12-A50-DC24V/10A

Welcome to Panle Electric * Germany Imported VISHAY GMKP 2000-0.221BY CN 0.22?? F??10% UN 2000VDC Ueff 780V/240Hz Length 70mm two wiring

Welcome to Panle Electric * Germany Imported AMCA MEV-12-ASFFC-120/120/MF

Welcome to Panle Electric * Germany imported WOERNER KTR-B/2/M800/T5/T5/X6

Welcome to Panle Electric's German imported Bicker MPs1058-000, L0509038

Welcome to Panle Electric's imported Fluke MG-22K-TSI-ANP from Germany

Welcome to Panle Electric's imported emecanique K1SF217B6XS from Germany

Welcome to Panle Electric * Germany Imported ENERPAC BMD18502

Welcome to Panle Electric * Germany Imported LUDECKE MAG10-X25

Welcome to Panle Electric's HAWE RH4PH imported from Germany

Welcome to Panle Electric * Germany imported SIEMENS C79451-A3114-B47

Welcome to Panle Electric's HWS Valve03-05600 imported from Germany

Welcome to Panle Electric * Germany Imported BALLUFF BTL5-E10-M750-K-SR32+BTL-P-1013-4R+BKS-32-M-15

Welcome to Panle Electric's imported Renzmann 10003795 from Germany

Welcome to Panle Electric * Germany Imported ICME TBM71B2 TROP 0.37kw 2740-2900rmp/min

Welcome to Panle Electric * German imported CD 80L-4 0.05-0.5kW 50-1500 (r/min) NR: 515788002 Y 50HZ

Welcome to Panle Electric * Germany Imported RENISHAW EXTL9SS M-5000-6714

Welcome to Panle Electric's imported MP Filtri LPA2/PML 2 from Germany

Welcome to Panle Electric * Germany imported Haegglands HMFDHI-OO O1=400 O2=480

Welcome to Panle Electric's Rexroth 11W04 imported from Germany

Welcome to Panle Electric's German imported Parker RDJA-LCN

Welcome to Panle Electric's imported Lapp 19042800 from Germany

Welcome to Panle Electric's imported Rexroth 4WMM6J5X/F from Germany

Welcome to Panle Electric * German imported SIEMENS 6ES7390-1BC00-0AA0/2000mm

Welcome to Panle Electric * Germany imported atos PVPCC-5073/ID10

Mid year 618 Panle Electric * Germany imported SSB 02 KW:/BS I: 1/54.6, Nr.422749

Mid year 618 Panle Electric * Germany imported TR LA-66-K, Magnet: T4M22 stroke=820mm

Mid year 618 Panle Electric * Imported A10V0140DFR1/31L-PSD62K02 from Germany

Mid year 618 Panle Electric * Germany imported lapp kabel Deutschland 4520012 H07V-K 2,5 BK

Mid year 618 Panle Electric * German imported DIX 3-2-1.4 M8 CR-ZR

Mid year 618 Panle Electric * Germany imported PSEN 1.1B-23 PILZ S81812046251

Mid year 618 Panle Electric * Germany imported ALPHA SP140S-MF1-7-2K1/1FK710

Mid year 618 Panle Electric * Germany imported M220-61040-003M1

Mid year 618 Panle Electric * Germany imported COAX-1430 MDBVP15 20122

Mid year 618 Panle Electric * Germany imported MTN/1185CM-20

Mid year 618 Panle Electric * Germany imported MCD6-DT/51N valve Duplomatic

Mid year 618 Panle Electric * Imported VB 80.5-P7X17-CS19 from Germany

Mid year 618 Panle Electric * Germany imported hm 850 DC-V

Mid year 618 Panle Electric * imported from Germany Watlow GmbH G2A98-BD20

Mid year 618 Panle Electric * Germany imported AGR0702-181-00 AGR S16816047556

Mid year 618 Panle Electric * Germany imported JN6532B

Mid year 618 Panle Electric * Germany imported 930 152-517

Mid year 618 Panle Electric * Imported 10 ROB40 from Germany

Mid year 618 Panle Electric * G22LOMDCF imported from Germany

Mid year 618 Panle Electric * Germany imported K0510139+K0400002

Mid year 618 Panle Electric * Germany imported PFERD ZY0408.3AR60.O5V

Mid year 618 Panle Electric * Germany imported ESAE-C-B300 ZYLINDER 300mm/100 HUB

Mid year 618 Panle Electric imported DC-PRO2-250 H5 V1 from Germany; the machine total six assembly G Series Package

Mid year 618 Panle Electric * Germany imported TOX 526553

Mid year 618 Panle Electric * Imported Norelem 28004-122038 from Germany

Mid year 618 Panle Electric * Germany imported CD automation CD automation CD3000S 1PH/35A/480V

Mid year 618 Panle Electric * Germany Imported INDUS Industrial LOCON15-0360-A161

Mid year 618 Panle Electric * Germany imported POS-123A-1013

Mid year 618 Panle Electric * Germany imported COAX-1689 5-VMK 20NC 543245

Mid year 618 Panle Electric * German imported Parker GMJ11F/H-40C DN15

Mid year 618 Panle Electric * Imported from Germany See the photo

Mid year 618 Panle Electric * Germany imported 3RT1025-1APO4-3MA0

Mid year 618 Panle Electric * Germany imported FRCS1002 100T ENERPAC S16813046613

Mid year 618 Panle Electric * Imported GS2-0 G24 from Germany

Mid year 618 Panle Electric * Germany imported RED42/18LOMDCF

Mid year 618 Panle Electric * Germany imported GS-22-50-BB-K16513

Mid year 618 Panle Electric * Germany imported 826405

Mid year 618 Panle Electric * Imported from Germany Eldon Floor-standing enclosure stainless steel with mounting plate IP66/NEMA 4（4X）, 12, 13 EKSS 20104

Mid year 618 Panle Electric * Imported from Germany 15300088 420308

Mid year 618 Panle Electric * Germany imported ZBE08-02

Mid year 618 Panle Electric * Germany imported AL111.41DT 1B2J6B30B

Mid year 618 Panle Electric * Germany imported R900561288

Mid year 618 Panle Electric * Germany imported SNO30 * 4/1.4571

Mid year 618 Panle Electric * Imported PMA KS40 PT100 0-200 from Germany?? 115/230V type 940440740001 no8382

Mid year 618 Panle Electric * Germany imported ECV25MF/30mt

Mid year 618 Panle Electric * Germany imported HUBNER-6879 LWLS-T-I-50/125

Mid year 618 Panle Electric * Imported from Germany 2101.75.110

Mid year 618 Panle Electric * Imported Rexroth 4WE 6 HA6X/EG24N9K4 from Germany?? R900549534??

Mid year 618 Panle Electric * Germany imported PRD10P-10-2/150YC-W

Mid year 618 Panle Electric * Germany imported GG.ASE10-N

Mid year 618 Panle Electric * Imported SSB DWF-S47-0511 from Germany

Mid year 618 Panle Electric * German imported GT 3813 MSV

Mid year 618 Panle Electric * Imported THK HSR25LA2UU+940L-II from Germany

Mid year 618 Panle Electric * Germany imports ENDEVCO-0083 2255B-1 from the United States

Mid year 618 Panle Electric * Germany imported PC 290006-01 Rev.01

Mid year 618 Panle Electric * Germany imported 3475AAGGA, Pressure 0-5 PSI SN.260643, stainless steel

Mid year 618 Panle Electric * Germany imported HUBNER-1514 POG 9DN1024I+FSL 2182821

Mid year 618 Panle Electric * Imported DRS160-A35-A-47-K-X-A20 from Germany

Mid year 618 Panle Electric * Germany imported schunk MMS22-SNM8-SA

Mid year 618 Panle Electric * Germany imported HUBNER-0520 POG 9D 1024P/R

Mid year 618 Panle Electric * Germany imported CO LR101SG5

Mid year 618 Panle Electric * Germany imported Filter element Ø 159, long 394, material SUS 3921544 1940217

Mid year 618 Panle Electric * Imported from Germany 512127-91

Mid year 618 Panle Electric * Germany imported 320200-08

Mid year 618 Panle Electric * Germany imported Schmersal T.064-21y-r R=2X90GRAD

Mid year 618 Panle Electric * Germany imported 4201001007

Mid year 618 Panle Electric * Germany imported CONTACTOR/62.07002.00210

Mid year 618 Panle Electric * Germany imported OMAL SR90F05-F07?? S/N :STW-100307-1 PMIN:4.2BAR,PMAX:8.4BAR TAG NO:CST8A211-G12 BODY:10K,3'?? Delay :7s CLOSE

Mid year 618 Panle Electric * Germany imported HDA 3745-A-400-000

Mid year 618 Panle Electric * Germany imported POG9DN1024I Vb=+9... 30VIP56

Mid year 618 Panle Electric * Germany imported CUB7P0XX 79.00

Mid year 618 Panle Electric * Germany imported MR500NG10 68,80

Mid year 618 Panle Electric * Germany Import No.P70203/003

Mid year 618 Panle Electric * Germany imported TF42-01030102 TF42-11-C-1A-WU

Mid year 618 Panle Electric * Germany imported SMI S.p.A. MF500192

Mid year 618 Panle Electric * Germany imported E203/100r 10114037

Mid year 618 Panle Electric * Imported SSB TYP from Germany: 5509.05.06904.05-

Mid year 618 Pan Le Electric * Germany imported Mueller Martini 35381-301124-650

Mid year 618 Panle Electric * Germany imported ST5112-32 032026010

Mid year 618 Panle Electric * Germany imported 81.500.1478

Mid year 618 Panle Electric * Germany imported STL80-JZX0-S01

Mid year 618 Panle Electric * Germany imported AEG MCS-169N/3340 160A

Mid year 618 Panle Electric imported TOGGLE-LOCK POWER CLAMP from Germany; DE-STA-CO, 1000A

Mid year 618 Panle Electric * Germany Imported 106025 (KHP-25-1114-02X1)

Mid year 618 Panle Electric * Germany imported BL20-S3T-SBB Nr: 6827044

Supply PARKER motor NX860VAJR9000 during National Day

National Day SupplyPARKER motor NX860VAJR9000