Which controller is responsible for managing a swinging load?

The bridge and trolley controller is responsible for managing a swinging load because it controls the movements of both the bridge (which moves horizontally along the tracks) and the trolley (which moves laterally across the bridge). This dual control allows the operator to effectively manipulate and stabilize loads that may have a tendency to swing, especially when starting or stopping the movement.

Controlling a swinging load requires coordination of both the bridge and trolley movements to counteract the momentum and gravitational forces that cause the load to sway. While the hoist controller focuses primarily on lifting or lowering the load vertically, it does not manage the lateral movements crucial to controlling swing. Similarly, the trolley controller handles the lateral movements alone, lacking the necessary control over the horizontal travel that the bridge provides. The load controller, on the other hand, generally monitors the weight and condition of the load but does not influence its swinging dynamics. Thus, the integrated control of the bridge and trolley is essential for managing a swinging load effectively.