Siemens RDF600KN - Terminal Connections; Terminal Functionality Explained

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Siemens RDF600KN, RDF600KN/VB, RDF600KN/S A6V11425204_en--_d
Smart Infrastructure Semi flush-mount communicating room thermostats 2020-02-21
Connection terminals
L X1 M
N
Q1 Q2 Q3
Y11 N
SELV
Y21
X2
3171A01
CE+ CE
-
L, N Operating voltage AC 230 V
Q1 Control output "Fan speed 1 AC 230 V"
Q2 Control output "Fan speed 2 AC 230 V"
Q3 Control output "Fan speed 3 AC 230 V"
Y11,Y21 Control output "Valve" AC 230 V (N.O., for
normally closed valves), output for compressor
or output for electric heater
X1, X2 Multifunctional input for temperature sensor
(e.g. QAH11.1) or potential-free switch
Factory setting:
– X1 = Operating mode switchover contact
– X2 = External sensor
(function can be selected via parameter P38 /
P40).
M Measuring neutral for sensor and switch
CE+ KNX data +
CE- KNX data -