User Manual

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Siemens RXC20, RXC21, RXC22 – Room controllers CA2N3834en_12
Building Technologies 2015-12-23
Neuron ID
Bar code, Code 39
(ID number)
Protection standard
Temperature range
(0 … 50 °C)
Serial No.
Test date, series
(Z, A, B, C…)
Observe notes
in this document
Factory-loaded
application
Definitive
application
Location
Options for use of the labeling fields “Appl.” and “Loc.”:
− Hand-written entry of the location and the loaded application ... or
− Printed adhesive label (printed from the RXT10 commissioning and service tool)
All connection terminals are detachable plug-in terminals.
To avoid incorrect wiring, terminals which can be connected to AC 230 V (supply and
relay outputs) are physically separate from the other terminals.
Cable restraints must be used for the wires to termi-
nals 19 … 28 (AC 230 V). The conductors must be
secured with cable ties (see diagram).
3834J01
Ensure that the power is off before inserting or removing plug-in terminals
connected to a mains voltage.
The RXC20, RXC21 and RXC22 room controllers communicate with other devices via
the following interfaces:
• L
ONWORKS® bus (terminals CLA and CLB) for communication with:
− PXX-Lxx, PXR system controller or NIDES.RX interface (to Desigo)
− Other Desigo RXC devices
− L
ONMARK® compatible 3
rd
party devices (e.g. presence detector)
• PPS2 (terminals CP– and CP+):
− Interface to the QAX… room units. (In addition to PPS2, the L
ONWORKS® bus is
also looped to the tool socket on the room unit.)
• Tool socket (RJ45) on the room controller or room unit, for:
− RXT10 commissioning and service tool (L
ONWORKS® bus)
− RXT20.1 service terminal (PPS2)
Note
Connection terminals
STOP
Note!
Warning!
Communication