User Manual

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Siemens RXC39.5 – Room controller CM2N3856en_07
Building Technologies 2015-12-23
Inputs (SELV)
Signal inputs D1 … D4
Contact voltage
DC 16 V
(for volt-free contacts)
Contact current
DC 5 mA
Contact transfer resistance
Max. 100 Ω
Contact insulation resistance
Min. 50 kΩ
Switch time:
min. 20ms ON, min. 20ms OFF
Universal input X1
Compatible temperature sensors
LG-Ni 1000
Measuring range
0…50 °C
Sensor current
2.3 mA
Resolution
≤ 0.2 K
Measuring error (without cable)
± 0.2 K at 25° C
or
Measuring input for DC 0 ... 10 V signals
Measuring range (nominal)
Over range
Under range
Resolution
Sample rate
DC 0...10 V
3.0 V
0 V
20 mV
≤ 1 s
Measured value input B2
Compatible temperature sensors
LG-Ni 1000
Measuring range
0…50 °C
Sensor current
2.3 mA
Resolution
≤ 0.2 K
Measuring error (without cable)
± 0.2 K at 25° C
Outputs (SELV)
Field supply (G, G0)
Caution
Output voltage
Fuse
AC 24 V (transit power)
No internal fusing
Fusing on the supply line required under
all circumstances
Triac (Y1, Y2)
Output voltage
AC 24 V
Permissible load current
Max. 0.5 A
Power limitation
Fuse T 2 A, can not be changed
(common for both triacs)
Total nominal load
(load on both outputs simultaneously)
Max. 12 VA
DC 0 … 10 V
Resolution
3 mV
(YC1...YC4)
Accuracy
100 mV
Output current
Max. 1.5 mA
Supply output G (SELV)
Voltage / Max. load
AC 24 V / Max. 6 VA
Relays (Q12, Q22)
Relay type
Monostable
Contact rating with AC voltage
Max. switching power (resistive)
Max. AC 250 V, 10 A
External fusing
Max. 10 A, see Power supply
Interface to room unit
Number of room units connectable
1
Interface type for room unit
for ACS
PPS2
Bus
PPS2 baud rate
4.8 kbit/s
Baud rate on the LONWORKS bus
78 kbit/s
L
ON
W
ORKS
Bus
Interface type
L
ON
M
ARK
-compatible, electrically
isolated
Physical layer
FT 5000
Baud rate bus
78 kbit/s
Bus topology and bus termination
See Installation guide, CA110334