Save wiring costs, reduce wiring time, and reduce the probability of errors. One bus communication port of the PLC can be connected to multiple servos, and the servos can be plugged in with a simple RJ45 port, shortening the construction cycle.
2. Greater amount of information: all-digital information interaction, can transmit a lot of parameters, instructions and status data in both directions; The pulse mode can only transmit position or speed information in a one-way direction, and cannot obtain more status or parameters of the servo.
3. High precision, digital communication mode: no signal drift problem, instruction and feedback data accuracy up to 32-bit
4. Higher reliability, stronger anti-interference ability, no pulse loss phenomenon. Pulse/direction control is unreliable at high speed pulses.5, reduce the total cost of the system, when more than two servos, do not need to adjust the PLC configuration, and the traditional solution needs to add pulse or axis control module, the number of servos is larger, even need to use a higher level of PLC hardware to meet the requirements.
6. More powerful software devices can be developed without additional hardware or wiring: the PLC can monitor the faults of the servo motor in real time through the bus and display them on the HMI. At the same time, the PLC can also monitor the actual position of the servo motor, the actual speed and other information, and can also automatically adjust the servo parameters by the program as needed. It can be implemented to set servo parameters in the HMI without modifying the servo panel, which is simple and intuitive and not easy to make mistakes.5, reduce the total cost of the system, when more than two servos, do not need to adjust the PLC configuration, and the traditional solution needs to add pulse or axis control module, the number of servos is larger, even need to use a higher level of PLC hardware to meet the requirements.
6. More powerful software devices can be developed without additional hardware or wiring: the PLC can monitor the faults of the servo motor in real time through the bus and display them on the HMI. At the same time, the PLC can also monitor the actual position of the servo motor, the actual speed and other information, and can also automatically adjust the servo parameters by the program as needed. It can be implemented to set servo parameters in the HMI without modifying the servo panel, which is simple and intuitive and not easy to make mistakes.7. Adopt the standard motion function block library to improve the efficiency of programming and debugging: the CAN bus system is used to solve the unified solution, which avoids the problems of large programming volume and complex debugging of the traditional pulse direction control method, improves the efficiency, and saves cost and time.
8. It can achieve long-distance control, which is very convenient and low installation cost when the production line equipment is very long, or the number of servos is large.
9, easy to expand: when the equipment has optional shaft or may add shaft in the later stage is very convenient, PLC configuration does not need to add hardware, wiring is very simple.
10. More maintainable, more status information and diagnostic information. Numerical control and motion control using bus control is currently very popular in Europe and the United States.
The difference between pulse servo and bus servo
Jul 28, 2022
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