080-332-000-R DEVICE SERVER LANTRONIX

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Essential details：080-332-000-R DEVICE SERVER LANTRONIX

Servo control, that is, in order to meet a certain purpose, the generated motion and the movement of the object to control human activities. The so-called servo control refers to the effective control of the position, speed and acceleration of the object movement. Such controls have been popularized in various fields. Servo control system refers to the feedback control system used to accurately follow or reproduce a process.

Servo system can be roughly divided into the following categories:

1. Instruction part: output device of action instruction signal

2. Driving part: The device that receives the output of the instruction part and drives the action of the actuator (such as the motor)

3. Feedback part: device that detects the execution structure or load state

4. Actuator: Receive the output signal of the driving part to generate torque, position and other states

080-332-000-R

1) Speed system means that the motor runs according to the given speed instruction.

2) The application of speed control is quite wide: the need for rapid sound seat continuous speed control system; Positioning system by upper closed loop; A system that requires multiple column speeds for fast switching.

3) Usually the speed of the servo is given as the analog quantity, that is, the amplitude of the analog quantity determines the size of the given speed, and the positive or negative relation of the motor depends on the speed instruction gain (Pn300).

Matters needing attention

1) The speed loop gain Pn102 is usually set higher to make the whole system respond faster and the motor rigidity is enhanced. But a large gain can cause the system to vibrate. In general, when the load inertia is large, the parameter should be set larger.

2) Speed loop integral time Pn103, its function is to eliminate static error, the larger the value set, the slower the response, the longer the time to arrive at the instruction. Usually the larger the load inertia, the larger the integration time should be set.

3) When the upper computer is closed loop, soft start deceleration time parameters Pn306 and Pn307 should not be set as far as possible.

4) If there is no upper computer as a closed loop and the motor is expected to be completely stopped by analog quantity, then zero clamp or proportional control must be adopted.

5) When the upper computer is used as the position closed loop, the analog quantity cannot be automatically zeroed.

2. Torque control

1) Non-speed control, control of torque is typical torque control.

2) Often used in tension control and other occasions

3) The input is the analog quantity, and the relationship between the analog quantity and the torque quantity depends on the torque instruction gain.

4) Example: Suppose the user set Pn400 is 100, it shows that if the input of 10ν simulation of the motor output torque can reach 100% of its rated torque.

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