Valve drive actuator with control, REG. SpaceLogic KNX valve drive actuator. For controlling electrothermal valve drives for heated or cooled ceilings. The valve drive controller has 6 electronic outputs. Up to 4 valve drives (230 V AC) or 2 valve drives (24 V AC) can be connected to each output. Both normally closed and normally open valve drives can be connected. The valve drive controller also contains 6 integrated room temperature controllers (RTR) that work independently of one another. The manipulated variable outputs of these RTCs can be linked internally to the valve outputs so that temperature and valve control can be carried out by just one bus participant if required. In this case, no external room temperature controller (e.g. button with RTR) is required. Since the valve outputs can be controlled individually, an external RTR can also be used at any time. The integrated room temperature controllers can send the manipulated variable telegram to the bus and thus control other heating actuators or fan coil actuators. The outputs are either switch-operated (1 bit) or PWM signal (1 byte) activated. Each output is protected against overload and short circuit. All outputs can be operated manually using buttons. Construction site operation is possible. For mounting on DIN rails TH35 according to EN 60715. The bus connection is made via a bus connection terminal.