ynchronous Working Mechanism of Special Controller for 4 Hoists
Hardware Connection and Synchronization Foundation
Shared Control Bus: The four controllers are connected in series via industrial-grade communication cables (such as CANopen, EtherCAT) to form a master-slave communication network. The master controller sends synchronous commands, and the slave controllers receive and execute them in real time, ensuring that the command transmission delay is ≤10ms.
Synchronous Trigger Signal: The special controller for four hoists is equipped with a hardware synchronous trigger module (such as a photocoupler). When the master controller sends a start signal, it activates the four controllers simultaneously through hardwired connections, avoiding timing deviations caused by communication protocols.
One controller is set as the master, and the remaining three as slaves. The master is responsible for generating motion trajectories (such as lifting speed, position coordinates), and the slaves adjust their own output power by reading the master's data in real time to achieve speed and position synchronization of the four hoists.
The special controller for 4 hoists achieves synchronous operation through a triple mechanism of "hardware bus + software algorithm + feedback correction", with the core lying in the real-time performance of master-slave communication, the accuracy of encoder feedback, and the redundancy design of safety protection. In practical applications, the appropriate control mode should be selected according to load characteristics and synchronization accuracy requirements to ensure the stability and safety of multi-device collaborative operations.
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