Siemens RDF302 - Connection; Connection Terminals

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Siemens RDF302 Basic documentation CE1P3079en
Building Technologies 07 Dec 2011
7. Technical data
Rated voltage AC 230 V
Frequency 50/60 Hz
Power supply
Power consumption Max. 7VA / 3.7 W
Fan control Q1, Q2, Q3-N
Rating
AC 230 V
Max. 5(2) A
Outputs
Control output Y11-N / Y21-N (N.O.)
Rating
AC 230 V
Max. 5(2) A
Multifunctional input X1-M/X2-M
Temperature sensor input:
Type
Temperature range
Cable length
Digital input:
Operating action
Contact sensing
Parallel connection of several thermostats
for one switch
Insulation against mains voltage (SELV)
QAH11.1 (NTC)
0...49 °C
Max. 80 m
Selectable (NO / NC)
SELV DC 0...5 V / max 5 mA
Max. 20 thermostats per switch
4 kV, reinforced insulation
Inputs
Function of inputs:
External temperature sensor, heating/cooling
changeover sensor, operating mode switchove
contact, dew point monitor contact, enable
electrical heater contact, fault contact,
monitoring input
Selectable
X1: P38
X2: P40
Interface type RS485 Modbus RTU,
Wire (ref.): 16 AWG, 1 pair,
shielded serial line with 1.5 mm
2
and length < 1200 m
Bus current Max. 50 mA
Modbus
Modbus topology:
See Modbus manual (MODBUS over serial line specification and implementation
guide from http://www.modbus.org ).
Switching differential, adjustable
Heating mode (P30)
Cooling mode (P31)
2 K (0.5...6 K)
1 K (0.5...6 K)
Setpoint setting and range
Comfort (P08)
Economy (P11-P12)
Protection (P11-P12)
21 °C (5...40 °C)
15 °C/30 °C (OFF, 5...40 °C)
8 °C/OFF (OFF, 5...40 °C)
Multifunctional input X1/X2
Input X1 default value (P38)
Input X2 default value (P40)
Selectable 0...8
3 (Op. Mode switchover)
1 (External temp. sensor)
Built-in room temperature sensor
Measuring range
Accuracy at 25 °C
Temperature calibration range
0…49 °C
< ± 0.5 K
± 3.0 K
Operational data
Settings and display resolution
Setpoints
Current temperature value displayed
0.5 °C
0.5 °C