Grid-powered material handling and/or construction machine

A material handling and/or construction machine, wherein the machine comprises:

• a plurality of electric drives for driving work assemblies and/or structural components of the material handling and/or construction machine;
• a control apparatus for controlling the plurality of electric drives;
• a power supply device for supplying the electric drives with electric power, wherein the power supply device has a grid connection for connection to a power grid and drawing of the electric power from the power grid;
• wherein a measuring device for measuring a total electric power consumption of the material handling and/or construction machine from the power grid is provided at the grid connection;
• and
• wherein the control apparatus is configured to:
• compare the total electric power consumption measured with a maximum power available from the power grid and/or a limit value dependent thereon and to reduce and limit the power consumption of said plurality of electric drives in dependence on the comparing;
• to scale control commands entered by a machine operator and/or generated by a machine control module for controlling the electric drives in dependence on the comparing and to limit them to a reduced maximum value;
• and
• to provide different power-reducing measures for different ones of said electric drives, and to provide a greater power reduction for an electric drive that has a high power consumption and a lower power reduction for another electric drive that has a comparatively lower power consumption.