Position control of crane systems

Single girder overhead traveling cranes, double girder bridge cranes and overhead traveling cranes are used in almost every logistics and production plants. They combine efficiency and economy. The crane systems are used to support work in the automatic warehouse and the production areas.

The control of the crane system is therefore based on the measured values of highly accurate laser distance sensors from Micro-Epsilon, which are designed for large distances as well as fast distance changes.

The first sensor detects distance changes of the main girder in x-direction, in the range of 0.1 to 100 m. This is performed continuously and during crane travel. The second sensor continuously measures the movements of the trolley between 0.1 and 25 m in the y-direction. If the value falls below a certain pre-defined setpoint, for example because the trolley is moved too close to the end position, it stops automatically.