Product definition 1 Product definition 1.1 Product catalogue Product name: Choke Use: System device Design: Rail-mounted device Order-No. 0581 00 1.2 Function The KNX choke is a system component. It decouples a KNX line from the respective KNX power supply and thus prevents the short-circuit of the data telegrams by the power supply unit. The choke additionally forms the line terminator required for function-oriented signal transmission.
Installation, electrical connection and operation 2 Installation, electrical connection and operation 2.1 Safety instructions Electrical equipment may only be installed and fitted by electrically skilled persons. The applicable accident prevention regulations must be observed. Failure to observe the instructions may cause damage to the device and result in fire and other hazards.
Installation, electrical connection and operation 2.2 Device components Figure 1: Device components (1) Bus connection (2) Connection DC 30 V (3) Reset LED (red) On: Bus line is short-circuited, bus reset. (4) Reset switch for bus line Position ON: Bus line in operation Position Reset: Bus line is short-circuited, bus reset.
Installation, electrical connection and operation 2.3 Fitting and electrical connection DANGER! Electrical shock when live parts are touched. Electrical shocks can be fatal. Before working on the device, disconnect the power supply and cover up live parts in the working environment. Fitting and connecting device with data rail If a data rail is used, bus line and power supply DC 30 V can be supplied to the device via data rail contacts.
Page 7
Installation, electrical connection and operation Figure 3: Rear view of device Remove the guide (8) of the data rail contacts. To do this, insert a small screwdriver laterally between the housing and guide and raise the guide. Attach the enclosed insulating cap (9) onto the data rail contacts and lock into place by pressing.
Installation, electrical connection and operation 2.4 Commissioning After properly fitting, the device is ready for operation. The device has no physical address and no application program either. Consequently, commissioning by the ETS is not necessary. i A KNX choke can generally be added to an ETS project in order to create parts lists or to test projects successfully, for example.
Technical data 3 Technical data General Mark of approval KNX/EIB Ambient temperature -5 ... +45 °C Storage/transport temperature -25 ... +70 °C Relative humidity 5 ... 93 % (No moisture condensation) Fitting width 36 mm / 2 modules Weight approx.
Technical data 4 Scope of functions Decoupling of bus line and power supply. Operation with or without KNX data rail possible. Contact to the data rail via contact spring system. Terminals on the panel of the device for bus terminal and power supply. Reset switch for activation of the bus line.