Samson TROVIS 5433, Монтаж и эксплуатация

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Processing external demand
The controller (= primary controller) can process analog requests for an externally required
signal, provided the analog request can be matched to “0 to 10 V correspond with 0 to
120 °C flow temperature“. The highest flow set point of the subsequent controller (= second-
ary controller) is read over analog input UE and compared to the controller's own flow set
point. The higher of the two flow set points plus the value of the
Boost parameter is adjusted
(at least 20 °C flow temperature from 1 V input signal).
The
Boost parameter improves the control response of the subsequent control valves in the
heating circuit and compensates for performance losses.
Note!
The adjustment of an external demand is indicated by displaying the icon in info level.
The primary controller can be configured to operate with or without outdoor sensor:
4
Primary controller with outdoor sensor:
As illustrated in Fig. 10, the primary controller can supply its measured outdoor tempera-
ture value at output UA (0 to 10 V); 0 to 10 V = –40 to 50 °C outdoor temperature applies.
The secondary controller reads the outdoor temperature over input UE and uses this value
to determine its flow temperature set point.
EB 5433 EN
65
System-wide functions
WW
SS1'
KW
RüS
VS1
AS
VS1'
Fig. 10 · Processing of external demand in primary controllers with outdoor sensors
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