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 servo and power servo system; position servo and acceleration servo system.
The electric servo system can be divided into two categories: DC DC servo system and AC AC servo system based on the electrical signals.
AC AC servo system also has two kinds of asynchronous motor servo system and synchronous motor servo system.
Motor series: super low inertia, medium power.
Rated output power: 2.0kw.
Rated speed: 3000r/min.
Whether to take the brake: No.
Shaft end: Standard (straight).
Protection level: IP65 (IP67).
Features: ultra low inertia is suitable for high frequency operation.
Application example: ultra high frequency transmission machinery MITSUBISHI MR-J20B.
High resolution encoder 131072p/rev (17 bit).
The encoder with high resolution ensures excellent performance and stability at low speed
MR-J20B
All motor dimensions are the same as before and all are compatible with the wiring. 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 MITSUBISHI MR-J20B.
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.
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 MITSUBISHI MR-J20B.
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 motor universal AC servo amplifier MELSERVO-J3 series.
Rated output: 0.6kw.
Interface type: SSCNET type III fiber communication.
Special features: integrated driver security.
Power specification: single phase AC200V.
STO function as a security feature is added to the SSCNET III fiber communication type servo amplifier.
By using the STO function, the electromagnetic contactor used in the past to prevent the motor from accidentally starting is no longer needed.
SS1 functions can be realized by using the MR-J3-D05 security logic unit.
MR-J3-BS uses a full closed loop control system.
Compatibility with MR-J3-B.
MMR-J3-BS installation, wiring and connectors are the same as the MR-J3-B, so do not change the existing connection will be easy to MR-J3-B
Change to MR-J3-BS MR-J20B.
Security functions are connected to the CN8 interface through an external securityy circuit to increase the MR-J3-BS driver security MR-J20B.
Compatible full closed loop control system.
MR-J3-BS has a full closed loop control system version.