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Siemens
RXC32 – Room controller for VAV systems
CA2N3845en_06
Building Technologies
2013-06-18
Outputs
Caution
Supply outputs For field supply
Output voltage
Fuse
AC 24 V (transit power)
No internal fusing
Fusing on the supply line required
under all circumstances
Triac outputs AC 24 V
Quantity
Output voltage
Permissible load current
Power limitation
Total nominal load
(load on all triacs simultaneously)
4 (Y1 ... Y4)
AC 24 V on/off, PDM or 3-position
(selected by switch)
Max. 0.5 A
1.85A PTC, resetting
(common for all triacs)
Max. 24 VA
Flow sensor
Tube connections (nipple diameters)
Measuring range
Overload range
Volume measurement
Accuracy with dynamic calibration
Accuracy with static calibration
∅
5.2 mm
0…300 Pa
0…100 k Pa
CEN TC247 Accuracy class 2
CEN TC247 Accuracy class 1
Air filter
Example: air filter ALG 3 ½ SPF Can be ordered from Schupp AG
Interfaces
Interface with room unit
Number of room units connectable
Interface type
for room unit
for RXT10
PPS2 baud rate
LON baud rate
Max. 1
PPS2
LON
4.8 kBit/s
78 kBit/s
L
ON
W
ORKS
®-Bus
Interface type
Transceiver
Baud rate
Bus topology and bus termination
LON (L
ON
M
ARK
-compatible),
electrically isolated
on RXC32.1: FTT-10A
on RXC32.5: FT 5000
78 Kbps
See Installation guide, CA110334
Cable connections
Plug-in terminal blocks
Solid conductors
Stranded conductors without
connector
sleeves
Stranded conductors with connector sleeves
(DIN 46228/1)
Rising cage terminals
1 x 0.2
... 2.5mm
2
or 2 x 0.2 ... 1.0 mm
2
1 x 0.2
... 2.5mm
2
or 2 x 0.2 ... 1.5 mm
2
1 x 0.25
... 2.5mm
2
or 2 x 0.25 ... 1.0 mm
2
Max. tightening torque
0.6 Nm
Single cable lengths
Signal inputs D1, D2
Measured value input X1
Triac outputs AC 24 V, Y 1 … Y4
Interface to room unit
Cable type
L
ON
W
ORKS
® bus
Cable type
Tool connecting cable
See Installation guide, CA110334
Max. 100 m with diameters
≥
0.6 mm
Max. 100 m with diameters
≥
0.6 mm
Max. 100m where A
≥
1.5 mm
2
Max. 115 m where A= 0.75 mm
2
(including tool connecting cable)
4-core, twisted pair, unscreened
See Installation guide, CA110334
See Installation guide, CA110334
Max. 3 m length
