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Siemens
RDG400 Basic Documentation
CE1P3182en
Building Technologies
2015-05-20
8 Technical
data
Operating voltage
DC 24 V: connect G to + and G0 to -
SELV AC 24 V/D C 24 V
or
AC 24 V/DC 24 V class 2 (US)
Frequency
50/60 Hz
Power consumption
Max. 2 VA
External supply line protection (EU)
Circuit breaker max. 10 A
Characteristic B, C, D
according to EN 60898
or
Power source with current
limitation of max. 10 A
No internal fuse.
External preliminary protection with max. C 10 A circuit breaker in the
supply line required under all circumstances.
Control output Y10-G0
Resolution
Current
DC 0…10 V
39 mV
Max.
±
1 mA
Control output Y1, Y2-G
Rating
AC 24 V
15 mA…1 A
Multifunctional inputs, digital input
X1-M/X2-M
Temperature sensor input
Type
Digital input
Operating action
Contact sensing
D1-GND
Operating action
Contact sensing
NTC (3 k
W
at 25 °C (77 °F))
Selectable (NO/NC)
DC 0…5 V, max. 5 mA
Selectable (NO/NC)
SELV DC 6…15 V, 3…6 mA
Function input
External temperature sensor, changeover
sensor, operating mode switchover contact,
dewpoint monitor contact, fault contact
Selectable
Switching differential, adjustable
Heating mode
(P30)
Cooling mode
(P31)
2 K (0.5...6 K)
4 °F (1...12 °F)
1 K (0.5...6 K)
2 °F (1...12 °F)
Setpoint setting and range
Comfort mode
(P08)
Economy mode
(P11-P12)
Protection mode
(P65-P66)
21 °C (5...40 °C)
70 °F (41...104 °F)
15 °C (59 °F)/30 °C (86 °F)
OFF, 5...40 °C (41...104 °F)
8 °C (46 °F)/OFF
OFF, 5...40 °C (41...104 °F)
Multifunctional inputs X1/X2, digital input D1
Input X1
Input X2
Input D1
Selectable
Ext. temperature sensor
(P38 = 1)
Changeover sensor
(P40 = 2)
Operating mode switchover
(P42 = 3)
Power supply
Outputs
Inputs
Operational data
