Siemens DF301 Basic Documentation page 34

External temp.
Parameter
sensor
P51
available
OFF No
OFF Yes
10...50 ˚C
No / Faulty
10...50 ˚C
Yes
Note
: once the fault is cleared, i.e. plug back / change to a working EXT Sensor, the thermostat should start to
work again in 1-2 minutes
Application Output Y11
2-pipe H/C valve
2-pipe & el H/C valve
heater
4-pipe Heating valve
*) If P13 = ON à electric heater in cooling mode
Note:
Dew point monitoring
Fault state
Fault information
Button lock
34 / 92
Siemens...........................RDF301, RDF301.50..., RDF600KN, RDF600KN/VB, RDF600KN/S
Smart Infrastructure
The table below shows the relation among parameter, temperature source and
temperature display:
Source for display
of room
temperature
Built-in sensor
External temp.
sensor
Built-in sensor
Built-in sensor
The "Floor temperature limitation" function influences the outputs listed in the table
below:
"Floor temp. limit" function has impact on
output
Heating
Output Y21 (P01 = 0/2/3)
Y11
El heater Y21
Cooling valve Y11
Either floor temperature sensor or external room temperature sensor can be used.
Dew point monitoring is essential to prevent condensation on the chilled ceiling
(cooling with fan disabled, parameter P52). It helps avoid associated damage to
the building.
A dew point sensor with a potential-free contact is connected to multifunctional
input X1 or X2. If there is condensation, the cooling valve is fully closed until no
more condensation is detected, and the cooling output is disabled temporarily.
The condensation symbol "
"Condensation in room" will be sent via bus.
The input must be commissioned accordingly (P38, P40).
See section 3.9.
If the "Button lock" function is enabled by parameter P14, the buttons will be locked
or unlocked by pressing the operating mode button for 3 seconds.
If "Auto lock" is configured, the thermostat will automatically lock the buttons 10 /
20 seconds after the last adjustment (RDF301... / RDF600KN...).
Floor temp.
Output control
limit
according to
function
Built-in sensor Not active
External temp. Not active
sensor
Heating output Not active
will be turned
OFF
Built-in sensor +
limit by external Active
sensor
Cooling Heat. and cool.
(P01 = 1/2/3) (P01 = 4)
N/A
Y21 *)
N/A
" is displayed during temporary override and the fault
Error Handling
--
--
Display " Er3 " and
heating output will
be turned OFF
--
Remark
Only el heater
Y11
Basic Documentation CE1P3171en
2020-02-21