Data Sheet for Product

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Siem ens HRC3.2 – Room controller CM2N6314en
Building Technologies 2016-12-23
Topology
Management system
Automation level
N... Room controller
PSU Power supply
Field level
R... Room devices
PSU
PSU
N1 N2 N50
N51
KONNEX TP1
IP
6314z01
R1 Rn
RS485
AC 24 V
KONNEX TP1
M M
Switch/
Router
IP
/
KNX
IP
/
KNX
Hardware
inputs/outputs
Valve actuator
Fan
Blinds
Lighting
Bell
Door opener
Switch
Engineering notes
· A single transformer with an output voltage of AC 24 V+/– 10% (SELV extra low
voltage) is required for the room controller power supply.
The transformer rating must be sufficient for
- the room controller and associated 12 V electrical consumers (all room bus
devices, DC door opener, DC signaling lamps, max. 30 VA)
- all electrical loads connected to the 24 V Triac outputs
· A line coupler from the KNX range is required after every 120 room controllers. In
practice, however, a line coupler needs to be connected after approximately 50
rooms, because the maximum cable length is 1000 m, and the cable length between
rooms is typically 20 m.
· The room controller must be installed in a control panel or covered enclosure, which
can only be opened with a key or tool. Adequate air circulation must be ensured.
· The relevant technical, and health and safety regulations must be observed,
including local electricity company regulations applicable to connection of devices to
the electricity network.
· The management level PCs must be protected with a UPS (uninterruptible power
supply).
· A mechanical safety lock must be provided to allow the doors to be opened from the
outside in extreme emergencies.