New Bus Terminals extend building automation kit

Extended range of applications

With the Beckhoff Bus Terminal system, all sensors and actuators that are relevant for building automation can be connected directly. New Bus Terminals extend the range of applications for the multi-purpose I/O system through cost-saving alternatives, such as a universal dimmer, an MP-Bus master terminal for integration of HVAC devices, or a 4-channel 16 A terminal module offering a low price per channel.

The MP-Bus master terminal enables direct connection of MP-Bus slave devices such as valves, throttle valves, air valves, fire dampers, or window ventilation systems. A master terminal can be used to connect up to 16 MP-Bus devices. The terminal communicates with the higher-level controller via the Bus Coupler, in building services applications primarily through an Ethernet TCP/IP connection.

LED group circuit via pulse width modulation

The 2-channel KL2512 pulse width output terminal enables direct connection of different ohmic loads. The output signal is a pulse-width modulated voltage. Via the bus system the output can be set independently for two channels with a resolution of more than 30,000 steps. This terminal is particularly well suited for controlling lighting systems such as LED groups or incandescent lamps. LEDs are usually designed for 24 V DC and arranged in groups.

4-channel relay module with a rated current of 16 A

The KM2604 terminal module combines 4 pluggable power relays in one module. The high switching capacity of 16 A at 230 V AC enables direct mains connection of consumers with high current consumption. A rated current of 16 A enables switching of sockets with "normal" fuse. The separate 24 V supply enables switching off via emergency stop or via a central switch. Optionally, relays with integrated switch can be used in parallel with the internal, bus-controlled switch.

Triac terminal for 4 blind motors

The compact KM2774 module enables direct connection of up to four AC motors with reversal of rotation direction and a further travel function. A blind motor can thus be switched between three states via three mutually locked outputs. Example: "open", "closed" and "slow adjustment". For each motor, three mutually locked triac outputs with 230 V AC and up to 1.5 A are available. An adjustable overcurrent limit protects the motor from damage.

Universal dimmer with bus interface

The KL2751 is a very compact universal 230 V dimmer in Bus Terminal format. The brightness values of the lighting system can be modified via the controller process data, based on any bus system supported by the Beckhoff I/O system. The universal dimmer can also be used as an AC power switch. A switchable load of 350 W enables wear-free switching of a wide range of consumers.