Siemens RDG20 KN Series - Page 179

Technical data
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Outputs (RDG26..)
Damper control (RDG264KN):
DC (U1)
On/Off (Q3)
SELV DC 0...10 V, ±1 mA
See Qx
Multifunctional inputs
X1-M/X2-M/U1-M (RDG20..KN)/X3-M (RDG20..T)
Temperature sensor input
Type
NTC 3k
Temperature range
-20…70 °C
Temperature sensor input
Type
LG-Ni1000
Temperature range
-40…70 °C
Digital input
Operating action
Selectable (NO/NC)
Contact sensing
DC 0…5 V, max. 5 mA
Insulation against mains
SELV
KNX bus (RDG20..KN)
Interface type
KNX, TP Uart 2 (electrically isolated)
Bus current
5 mA
Bus topology: See KNX manual ("Reference documentation")
Operational data
Switching differential, adjustable
Heating mode (P051)
1 K (0.5…6 K)
Cooling mode (P053)
1 K (0.5…6 K)
P-band Xp
Heating mode (P050)
2 K (0.5…6 K)
Cooling mode (P052)
1 K (0.5…6 K)
Setpoint setting and setpoint range
Comfort mode (P011)
21 °C (5…40 °C)
Economy mode (P019-P020)
15 °C/30 °C (OFF, 5…40 °C)
Protection mode (P100-P101)
8 °C/OFF (OFF, 5…40 °C)
Multifunctional inputs X1/X2/U1 (RDG2..KN)/X3
(RDG2..T)
RDG2..KN: Selectable (0…14)
RDG2..T: Selectable (0…6 & 9...14)
Input X1 default value (P150)
1 (external temperature sensor, room or return air)
Input X2 default value (P153)
0 (no function)
Input U1 (RDG2..KN)/X3 (RDG2..T) default
value (P155)
RDG2..0KN & RDG2..0T: 3 (window contact)
RDG2..4KN: 0 (no function)
Built-in room temperature sensor