MITSUBISHI motor universal AC servo amplifier MELSERVO-J3 series.
Rated output: 0.6kw.
Interface type: CC-Link communication type (built-in positioning function) MR-J20B PDF.
Power specification: three phase AC400V.
Positioning operation by setting position and rotational speed data in the positioning table and receiving the start signal from the main controller.
The setting of the position and speed of the positioning table, as well as the start and stop operation can be completed through CC-Link communication MR-J20B
By using the MR-J3-D01 extension IO unit, the DI/O instruction can be used to select and locate the table MR-J20B PDF.
(CC-Link can not be used for MR-J3-D01 communications).
With built-in positioning function of the servo amplifier, can be set through the CC-Link communications and speed data. (corresponding to the CC-Link version: Ver.1.10)
Can be achieved through the CC-Link communications to start, stop and monitoring and other operations MR-J20B PDF.
Serial communication reduce wiring.
Distributed servo control system can be built by CC--Link communication MR-J20B Manual.
The parameters of unit MR-PRU03 (optional) the parameter setting, operation and monitoring more convenient.
The servo amplifier can be used for speed control operation.
When the two stations are occupied, the speed can be set directly by the remote register MITSUBISHI Specifications and Instructions Manual. Drive: MR-H_ACN series built-in positioning function.
Rated output: 22KW.
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 Specifications and Instructions Manual.
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 MITSUBISHHI Specifications and Instructions Manual MR-J20B Specifications and Instructions 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 largger MR-J20B Manual.
Therefore, it is difficult to improve the speed tracking and control performance of servo drive by using the traditional speed loop design method.