Processing Of External Demand In Control Circuit Rk1 - Samson TROVIS 5573 Mounting And Operating Instructions

7.10

Processing of external demand in control circuit Rk1

The controller can process binary or analog requests for an externally required signal by a
more complex secondary system, provided the inputs SF2 or RF2 are not assigned to a sensor.
The standard 0 to 10 V signal is basically intepreted as a 0 to 120 °C flow temperature de-
mand, i.e. the flow temperature demand is 12 °C/V.
NOTICE
Overheating may occur in the heating circuits of the primary controller without control valve.
Excessive charging temperatures in DHW circuits without control valve controlled by the pri-
mary controller are excluded when the default settings of the controller are used: while storage
tank charging is active, no flow temperature higher than the charging temperature is used by
the primary controller. Nevertheless, if the Priority for external demand function is activated,
the external demand is also processed during storage tank charging.
Function
Priority for external demand
Processing of external demand with a binary signal
Regardless of the operating mode set for control circuit Rk1, except for manual mode, the flow
temperature specified as Set point for binary demand processing is used in control circuit Rk1
when either the binary input (terminals 03/12) is a make contact (bE=1) or a break contact
(bE=0).
Functions
Processing of external demand in Rk1
Processing of external demand, 0 to 10 V
Processing of external demand, binary
Parameter
Set point for binary demand processing
Processing of external demand with a 0 to 10 V signal
Regardless of the operating mode set for control circuit Rk1, except for manual mode, at least
the flow temperature corresponding with the 0 to 10 V signal connected to terminals 11/12 is
used by the controller.
WE Configuration
0 CO4 -> F16 - 1
WE Configuration
0 CO1 -> F15 - 1
0 CO1 -> F16 - 0
0 CO1 -> F17 - 1
bE=1 bE=1, bE=0
WE Parameter level / Range of values
40.0 °C PA1 / 5.0 to 130.0 °C
System-wide functions
EB 5573 EN
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