Equilibrium crane

The crane is used to load and unload ships in the harbour. The crane control system supports the crane driver with the difficult task of lifting the load off or onto the ship within the shortest possible period without sideways deviation, keeping it as vertically as possible.

• The first controller controls the major jib and the auxiliary arm with the jib head and monitors the position of the jibs.
• The second controller influences the grabbing and rotating processes.
• The third controller is used to control the brake valves. All the controllers communicate via a field bus.
• Dependent upon the load, the optimum speed is automatically used when turning and lifting the jibs, thus reducing the loading and unloading times.
• After rotation, the automatic rotating brake effects quick crane braking.
• The monitoring of the load limits and critical benchmark figures ensures safe work with fewer downtimes.