6SM56-S-3000 KOLLMORGEN
6SM56-S-3000 Cole Morgan servo driver
Servo drives are an important component of modern motion control and are widely used in automation equipment such as dry industrial robots and CNC machining centers. Especially, servo drives using dry control AC permanent magnet synchronous motors have become a research topic at home and abroad
hotspot. Three closed-loop control algorithms based on vector control, namely current, speed, and position, are widely used in the design of AC servo drives. The rationality of the speed closed-loop design in this algorithm is crucial for the overall servo control system, especially for speed control
Can play a critical role 1
In the speed closed-loop of servo drivers, the accuracy of real-time motor rotor speed measurement is crucial for improving the dynamic and static characteristics of speed control in the speed loop. In order to find a balance between the most accurate measurement and system cost, incremental methods are generally used
The photoelectric encoder serves as a speed sensor, and its corresponding speed measurement method is M/T speed measurement. Although the M/T velocity measurement method has certain measurement accuracy and a wide measurement range, it also has its inherent drawbacks, including; 1) At least during the speed measurement cycle
To detect a complete code disk pulse, the minimum measurable speed is limited: 2) The timing switches of the two control systems used for speed measurement are difficult to maintain strict synchronization, and the accuracy of speed measurement cannot be guaranteed in measurement scenarios with significant speed changes. Therefore, using traditional speed loop design methods is difficult to improve the speed following and control performance of servo drivers.
The basic components of PLC include central processing unit (CPU), memory, input/output interface (abbreviated as I/O, including input interface, output interface, external device interface, expansion interface, etc.), external device programmer, and power module.
The full Chinese name of PLC is Programmable Logic Controller, which is a type of programmable memory used to store programs internally, execute user oriented instructions such as logical operations, sequential control, timing, counting, and arithmetic operations, and control various types of mechanical or production processes through digital or analog input/output.
Main control mode: The control mode of PLC is mainly sequential scanning execution of the program, and its working process is generally divided into three stages, namely input sampling, user program execution, and output refresh. Completing the above three stages is called a scanning cycle. During the entire operation period, the CPU of the programmable logic controller repeatedly executes the above three stages at a certain scanning speed.
