Siemens RDG20 KN Series - Page 162

Connection
Connection terminals
6
162 | 186
A6V11545892_en--_e
RDG26..
RDG26..KN
RDG26..T
G, G0
Operating voltage AC 24 V / DC 24 V
L1
Feed for relays AC 24…230 V
X1, X2, X3
Multifunctional input for temperature sensor (NTC 3k or LG-
Ni1000) or potential-free switch (function can be selected via
parameter)
U1
Selectable input/output function:
● Multifunctional input for temperature sensor (NTC 3k or
LG-Ni1000) or potential-free switch (function can be
selected via parameter)
● Multifunctional output DC 0…10 V for fresh air damper or
2
nd
stage cooling in 4-pipe/2-stage application
M
Measuring neutral for sensors and switches
CE+, CE-
KNX bus + and – terminals
Q1 (L1)
Control output for fan speed I AC 230 V / AC 24 V
Q2 (L1)
Control output for fan speed II AC 230 V / AC 24 V
Q3 (L1)
Control output for fan speed III AC 230 V / AC 24 V
Q1…Q3 (L1)
For special functions AC 24…230 V
Y10, Y20, Y30
Control outputs "Valve" DC 0…10 V
Y50
Control output "Fan" DC 0…10 V