MITSUBISHI MELSEC-L SERIES Special Instructions Manual MELSEC-L SERIES Programming Manual

Fiber length: 0.5 meters.
SSCNET III cables (standard optical fiber used in control cabinet).
Joints for CN1A and CN1B. Type: MR-J series.
Rated output: 0.2KW.
Suitable for motor series: HA-ME.
Voltage: three phase AC220V.
It is very helpful to improve the stability of the low speed control of the servo motor MELSEC-L SERIES Special Instructions Manual MELSEC-L SERIES Programming Manual.
But there is no direct effect to improve the accuracy of position control MELSEC-L SERIES
There are, of course, software compensation that is similar to pitch compensation,
Can improve the physical resolution of the single lap, so as to improve the accuracy of positioning control.
This can be effectively used in the use of the robot control of the indexing table.
It is also because of the application of splicing technology,
The rotary encoder will be more widely used in the high precision servo control in the harsh environment MELSEC-L SERIES Special Instructions Manual MELSEC-L SERIES Programming Manual.
The use of rotary encoder with 224/ in the servo motor has been used in the servo motor.
Encoder serial communication system, the communication frequency can only be limited to 10M. Drive: MR-H_ACN series built-in positioning function.
Rated output: 1.0KW.
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 MELSEC-L SERIES Special Instructions Manual MELSEC-L SERIES Programming 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.
2 control system for sspeed 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 MELSEC-L SERIES Special Instructions Manual MELSEC-L SERIES Programming Manual MELSEC-L SERIES Special Instructions Manual MELSEC-L SERIES Programming Manual.
Therefore, it is difficult to improve the speed tracking and control performance of servo drive by using the traditional speed loop design method.