Drive: MR-H_ACN series built-in positioning function.
Rated output: 11KW.
In servo drive speed closed loop,
Rotor speed measurement accuracy is very important to improve the dynamic and static characteristics of the speed control loop.
In order to seek the balance between measurement precision and system cost, incremental photoelectric encoder is generally used as the speed measuring sensor,
The corresponding method is M/T velocity measurement MELSEC-L SERIES Common Instructions Manual MELSEC-L SERIES Programming Manual MELSEC-L SERIES
Although the M/T measurement method has a certain measurement accuracy and a wide range of measurement,
But this method has its inherent defects,
Mainly includes: the measurement period must be detected at least one complete encoder pulse, limiting the minimum detectable speed MELSEC-L SERIES Common Instructions Manual MELSEC-L SERIES Programming Manual.
2 control system for speed control of the timer switch is difficult to maintain synchronization,
Can not guarantee the accuracy of measurement in the situation where the speed change is larger.
Therefore, it is difficult to improve the speed tracking and control performance of servo drive by using the traditional speed loop design method. MITSUBISHI general purpose AC servo amplifier MR-J2 series MELSEC-L SERIES Common Instructions Manual MELSEC-L SERIES Programming Manual.
Rated output: 0.4kw.
Interface: single axis positioning built-in type.
Voltage: single phase AC200V.
High response.
High precision positioning.
High level automatic tuning, can easily achieve gain settings.
Adopting adaptive vibration control and reducing vibration.
With a computer combination, using the software to achieve the best tuning.
Pulse sequence input (position, speed control), analog input (speed, torque control) two purposes.
Simple operation.
The socket is arranged on the front panel, and is convenient to connect.
Using the socket, wiring easy.
Setting method and J2Super with interchangeable. Type: MR-J_B series.
Rated output: 0.2KW.
Interface: standard.
Servo system according to the system structure can be divided into open loop servo system, closed loop servo system, semi closed loop system, compound control system.
The closed loop automatic control system with feedback is composed of a position detecting part, a deviation amplifying part, an executing part and a controlled object.
Servo system must have good controllability, high stability and high adaptability.
Note that the control of the signal is good after the disappearance of the signal, can immediately stop the turn;
High stability is the torque with the increase of speed and uniform decline; adaptability is fast, sensitive, and ring state quality is good.
According to the types of servo drives are classified, there are three kinds of electric, hydraulic or electric hydraulic.
If the servo system is divided according to the function, then there is a measuring servo and power servo system;
Analog seervo and power servo system; position servo and acceleration servo system MELSEC-L SERIES Common Instructions Manual MELSEC-L SERIES Programming Manual.
The electric servo system can be divided into two categories: DC DC servo system and AC AC servvo system based on the electrical signals MELSEC-L SERIES Common Instructions Manual MELSEC-L SERIES Programming Manual.
AC AC servo system also has two kinds of asynchronous motor servo system and synchronous motor servo system.