Device for controlling a door drive, including a path measuring device and a control device for detecting a door position and/or a door drive position and for transmitting a corresponding door position signal, the control device for relying on the door position The absolute value of the signal and at least one reference point control the gate driver. The device for controlling a door drive according to the present invention is characterized in that the path measuring device is made of at least two channels and includes an absolute value encoder and a reference point encoder. The absolute value encoder is used in the first channel The absolute value signal is transmitted upwards, and the reference point encoder is used to transmit multiple reference point signals on the second channel; the control device uses the related absolute value signal to distinguish a corresponding reference point signal from other reference point signals, and from a specific reference point Start to control the door driver.

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