Control device for a passenger transport system

An electrical control device for controlling a drive of a passenger transport system that can be switched between load operation and idle operation, wherein the passenger transport system comprises an escalator or moving walkway and includes a three-phase drive motor, the electrical control device comprising:

• a three-phase mains voltage connection for supplying a three-phase mains voltage;
• a frequency converter that can be controlled at least with regard to a frequency of a three-phase output voltage;
• a controllable switching device having:
• a load operation switching state in which three phases of the three-phase drive motor can be coupled to three phases of the three-phase mains voltage connection, and
• an idle operation switching state in which the three phases of the three-phase drive motor can be coupled to the three phases of the frequency converter,
• wherein the three-phase drive motor is supplied with the three-phase mains voltage in the load operation switching state and with the three-phase output voltage of the frequency converter in the idle operation switching state,
• wherein the frequency converter is supplied via at least one phase the three-phase mains voltage connection and a neutral conductor of the three-phase mains voltage connection.