Control device for a conveyor device

A method of operating a conveyor device comprising the steps of:

• supplying a logic supply voltage to a control device via a first power interface;
• supplying a power supply voltage to the control device via a second power interface;
• providing a motor supply voltage from the power supply voltage at a connection interface;
• wherein a first voltage having a first voltage level or, instead of the first voltage, a second voltage having a voltage level is different from a voltage level of the first voltage is fed to the second power interface as the power supply voltage;
• wherein optionally one of two different voltages is received at the second power interface, such that a drive with two different selectable voltages may be supplied with the power supply with the second voltage or the power supply with a voltage;
• and
• wherein a level of the third voltage is twice as high as the level of the second voltage and the second or third voltage is passed directly to the connection interface in order to supply a conveyor device connected thereto.

A conveyor comprising a motor-driven conveying roller controlled by a control device, the control device comprising:

• a control unit adapted to generate control signals for a conveyor device;
• a data interface adapted for signal transmission of control signals to the control unit;
• a first energy interface adapted for an energy supply to the control unit;
• a connection interface adapted to establish a signal control connection and a power supply connection between the control unit and a conveyor unit located outside the control device;
• a second energy interface adapted for supplying energy to the control unit;
• wherein the first energy interface is adapted to receive a power supply in the form of a power supply with a first voltage and the second energy interface is adapted to receive a power supply in the form of a power supply with a second voltage or, instead of the second voltage, with a third voltage whose level is different from the level of the second voltage;
• wherein the second energy interface is adapted to optionally receive two different voltages, such that a drive with two different selectable voltages may be supplied with the power supply with the second voltage or the power supply with the third voltage;
• and
• wherein the level of the third voltage is higher than the level of the second voltage and the second or third voltage is directly forwarded to the connection interface in order to supply the conveyor device connected thereto.