Page 6 of catalogue Frequency inverters of Demag Cranes & Components GmbH

For optimum crane operation

38412-12

37904-3

Crane operation can be precisely adapted to meet your specific needs using the Dedrive Pro.

Four-Rope grabs can be controlled to perfection with the Dedrive Pro.

Special Software functions Many special software functions are available for optimum crane operations. These facilitate performance monitoring in field weakening operation (higher speed at partial load), load spectrum calculation or speed monitoring, for example. The Dedrive Pro can be connected to the existing joystick controller of cranes fitted with cab controls. Programmable characteristic curves make it possible to adapt operation perfectly to meet the specific requirements of the handling application. An intelligent brake logic system enables the brake function to be monitored by evaluating the signals from the corresponding feedback contacts. Torque pre-control at start-up also enables heavy loads to be handled more precisely by hoist units. The system bus (fibre optic cable) for Master/Slave applications is suitable for implementing electronic Gearboxes by synchronising two hoists for transporting long materials. Furthermore, the Master/ Follower function makes it possible to share the load/ torque between two mechanically connected Geared motors on one hoist unit.

Lifting speed

Switch travel

The characteristic curve to operate the joystick is freely programmable.

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