Heating, ventilation 19.03.2020 08:25 19.03.2020 08:25

The drive can be controlled by any 0 ÷ 10 V analogue output of the Foxtrot system. It is recommended to use the C-IR-0202S module for control at the drive location; the module is fitted with a 0 ÷ 10 V analogue output, and also with two inputs (e.g. the temperature in the room and the window contact). When multiple drives are powered from a common 24 VAC supply, it is necessary to take care of the galvanic connection of analogue outputs of individual CIB modules with the CIB communication and 24 V powering of the drives. The negative terminal of the power supply and the negative CIB terminal are interconnected via the analogue output circuits - it is important to keep the minimum voltage difference between both signals (the same topology of cables, sufficient CIB cables cross-section and 24 VAC power supply for the drives).

 


Fig. 1. An example of connection – a two-position drive (actuator) for radiator valves

 

Notes:

  1. When multiple AA 5004 drives are controlled, constant consumption of about 1.8 W per drive must be considered (the switching current up to 200 mA for maximum two minutes per each drive).

  2. The input resistance of the AA 5004 drive analogue input is 100k.

  3. If multiple drives are to be powered from a common 24 VAC source, you must take into account the galvanic connection of the source and the CIB (via the drive analogue input) - the CIB bus and the 24 VAC supply must always be lead in stronger wires and along the same route.

  4. With greater cable lengths (dozens of meters), it is recommended to use the motor CIB drives or on-off actuators.