What is servo drive?

As one of the importanttechnologies of CNC machine tools, industrial robots and other industrial machinery control, servo drive technology is widely concerned at home and abroad. In the last decade of the 20th century, the development of microprocessor (especially DSP), power electronics, network technology and control technology havelaid a good foundation for the further development of servo drive technology. If we say that AC servo drive technology replaced DC servo drive technology in the 1980s, then the 1990s was the decade when servo drive system was fully digitized, intelligent and networked. This is particularly evident in some industrialized countries.
The servo driver is an automatic device, which receives the command signal and compares it with the feedback of the servo , so as to provide the required voltage to the servo motor to correct any deviation from the command state.
Servo drive, also known as "servo controller" and "servo amplifier", is a kind of controller used to control servo motor. Its function is similar to that of frequency converter acting on normalAC motor. It belongs to a part of servo system and is mainly used in high-precision positioning system. Generally, servo motor is controlled by position, speed and torque to achieve high-precision positioning of transmission system. At present, it is an advancedproduct of transmission technology.

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03/05/2021

What is servo drive?

As one of the importanttechnologies of CNC machine tools, industrial robots and other industrial machinery control, servo drive technology is widely concerned at home and abroad. In the last decade of the 20th century, the development of microprocessor (especially DSP), power electronics, network technology and control technology havelaid a good foundation for the further development of servo drive technology.

03/04/2021

Advantages of servo motor

Precision: the closed-loop control of position, speed and torque, and the problem of out of step of stepping motor is solved; Speed: high speed performance, general rated speed can reach 2000 ~ 3000 rpm;

03/04/2021

What is servo motor brake

Servo motor brake, also known as holding brake, is a component of power release. Generally, the servo motor with brake is integrated with the motor. Generally, DC24 V power supply is used. It is mainly used to lock the rotor shaft of servo motor after power off.

03/03/2021

The key detection items of servo motor and common problems in servo motor detection

1).Servo motor detection -- cogging torque: Cogging torque is an inherent phenomenon of permanent magnet motor, which can make the motor torque fluctuate and produce vibration and noise. We measure the change of motor torque in a rotation cycle on a special test bench and analyze the distribution of cogging torque.

03/03/2021

Type selection calculation of servo motor

Confirmation of speed and encoder resolution. Conversion of load torque on motor shaft and calculation of acceleration and deceleration torque.

03/03/2021

Control mode of servo motor

Torque control: the torque control mode is to set the external output torque of the motor shaft through the input of external analog quantity or the assignment of direct address. For example, if 10V corresponds to 5nm, when the external analog quantity is set to 5V, the output of the motor shaft is 2.5nm: if the load of the motor shaft is lower than 2.5nm, the motor will rotate forward, and when the external load is equal to 2.5nm

03/03/2021

Voltage of servo motor: relationship between voltage and speed of servo motor

1)At high speed, the speed is proportional to the voltage 2) At low speed, the voltage is lower than the decrease of speed;

03/03/2021

Application of servo motor

Machine tool manufacturing - lathe, planer, grinder, machining center, gear making machine, milling machine, etc Automobile manufacturing - engine parts production line, vehicle assembly line, engine assembly line, body welding line, testing equipment, etc Casting manufacturing - manipulator, converter tilting, mold processing center, etc

03/02/2021

Advantages and disadvantages, function and service life of brushless motor

Advantage: (1) No brush, low interference When the brush is removed from the brushless motor, the most direct change is that there is no electric spark generated when the brushless motor is running, which greatly reduces the interference of electric spark to the remote control radio equipment.

03/02/2021

Advantages of hollow axis servo motor

The diameter of hollow shaft can reach 40mm Compact size IP65 protection level Low rotor moment of inertia, high dynamic response characteristics

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What is servo drive?

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