MITSUBISHI MR-J4-700B4-RJ datasheet PDF catalog MR-J4-700B4-RJ PDF datasheet

MITSUBISHI motor universal AC servo amplifier MELSERVO-J3 series.
Rated output: 0.2kw.
Interface type: SSCNET type III fiber communication.
Special specification: suitable for direct drive servo motor.
Power specification: single phase AC200V.
Direct drive system suitable for high speed and high precision!
High speed operation can be realized by direct drive (2m/s), and the traditional mechanical transmission can not achieve such a high speed MR-J4-700B4-RJ datasheet PDF catalog MR-J4-700B4-RJ PDF datasheet MR-J4-700B4-RJ
The full closed loop control can be realized by using the position feedback signal from the load side encoder, such as the linear encoder.
The use of a flexible linear servo motor drive components can make the system more compact structure.
The primary side of the linear servo motor (motor coil) is sliding along the secondary side (permanent magnet) of the motor,
So linear servo motor is especially suitable for large range of applications MR-J4-700B4-RJ datasheet PDF catalog MR-J4-700B4-RJ PDF datasheet. In addition, linear servo motor can be connected in series,
Especially for large systems in two axes for high precision synchronous operation. Fiber length: 50 meters.
SSCNET III cable (long distance optical fiber, high bending life) MR-J4-700B4-RJ datasheet PDF catalog MR-J4-700B4-RJ PDF datasheet.
Joints for CN1A and CN1B. Drive: MR-H_ACN series built-in positioning function.
Rated output: 0.1KW.
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.
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.
2 contrrol 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 larrger MR-J4-700B4-RJ datasheet PDF catalog MR-J4-700B4-RJ PDF datasheet MR-J4-700B4-RJ datasheet PDF catalog MR-J4-700B4-RJ PDF datasheet.
Therefore, it is difficult to improve the speed tracking and control performance of servo drive by using the traditional speed loop design method.