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Siemens………………………RDF301, RDF301.50..., RDF600KN, RDF600KN/VB, RDF600KN/S Basic Documentation CE1P3171en
Smart Infrastructure 2020-02-21
# Function of
input
Description Type
X1/X2
Enable elec-
tric heater
5 Enable electric
heater
Digital input to enable / disable the electric heater via
remote control.
Enable electric heater is also possible via bus. In this
case, the function must not be assigned to any local
input X1, X2. See also section 3.6.
DI
Fault
information
6 Fault Digital input to signal an external fault (example: dirty
air filter).
If the input is active, "ALx" is displayed and a fault is
sent on the bus. See also section 3.11.8.
(Alarm x, with x = 1 for X1, x = 2 for X2).
Note: Fault displays have no impact on the
thermostat's operation. They merely represent a
visual signal.
DI
X1, X2
(Digital)
7 Monitor input
(Digital)
Digital input to monitor the state of an external switch
via bus, e.g. to send a local alarm via KNX to the
central controller.
DI
X1, X2
(Temp.)
8 Monitor input
(Temperature)
Sensor input to monitor the state of an external
sensor (e.g. QAH11.1) via bus, e.g. to send a local
temperature (0...49°C) via KNX to the central
controller.
AI
Presence
detector
(RDF600…)
10 Presence
detector
(RDF600KN…)
1)
Standard presence: Presence detector input to switch
the operating mode to Comfort in case of occupancy
and back to Economy when the room is unoccupied.
Hotel presence: Presence detector input to change
the operating mode from Economy during unoccupied
periods to the previous mode (operating mode
selected by either hotel guests via local HMI or sent
via bus) for occupancy and return to Economy when
the room is unoccupied.
Presence detector is also possible via bus. In this
case, the function must not be assigned to any local
input X1, X2. See also section 3.2.1.
DI
· Operational action can be changed between normally open (NO) and normally
closed (NC) via parameter P39, P41.
· Each input X1 or X2 must be configured with a different function (1…5, 10).
Exception: 1 or 2 inputs can be configured as fault (6) or monitor input (7, 8).
· X1 is factory-set to "Operating mode switchover" / "Window contact" (3), X2 to
"External sensor" (1).
RDF600KN, RDF600KN/VB SW version < V1.8 works like RDF301… with the
operating mode switchover contact as window contact or presence detector.
For more detailed information, refer to section 3.4.
Note
1)
: