Operating instructions type-lines CXE/AVC (E)
Date 0917
TBL02_13-GB 0917
Art.-Nr. 00153342-GB
Seite 56 / 63
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[min]
[°C
]
ON
ON
ON
Beispiel: Sollwert 15° C, Offset
+5 K
, Hysterese 2 K
Temperature time flow
Ausschaltpunkt =
Einschaltpunkt
+
Hysterese
= 20°C - 2K =
18 °C
ON point =
Setpoint venti Offset
= 15°C + 5K =
20 °C
Setpoint ventilation
15 °C
14.3 Limit indication depending on offset to Setpoint
In operating modes as a controller (via
2.01
), two limit indicators can be carried out based on the set target value
(Setpoint) and measured actual value (on E1).
The following functions can be allocated to this limit indicator
Function
Description
OFF
No function
1 L
Indication with the centralized fault of a programmed relay (IO allocation
function 2K) warning symbol in display, “AL“ code in events memory
2 L
Is merely displayed in the events menu as message “msg“
In the IO setup, a separate relay can be allocated independent of these settings.
Both values for Offset 1 and Offset 2 can be set independent of each other and act on a relay together if
correspondingly programmed. If a function is activated or if a relay is allocated both settings (Offset 1 and Offset 2) are
initially at OFF. Work can be carried out with one as well as with both limit indicators.
Offset 1
for alarm in case of an
exceeding of the max. deviation
between actual and target
SwitchON point: actual value = Se/- offset
SwtichOFF point: Actual value by hysteresis under the switch-on point.
Offset 2
for alarm in case of an
undercutting of the max. deviation
between actual and target
SwitchON point: actual value = target value +/- offset
SwtichOFF point: Actual value by hysteresis over the switch-on point.
Hysteresis switch-on point: In temperature regulation
±
10 K, otherwise sensors 10 % of
measurement range.
Time delay until indication through relay and alarm symbol. Factory preset 2 seconds, adjustment
range 0-120 sec
Example for temperature regulation; for other modes of operation settings in corresponding sensor unit.
Offset 1 for alarm during exceeding
Offset 2 for alarm during undercutting
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[min]
[°C
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ON
ON
Example: Setpoint 20° C, Offset
-5 K
, hysteresis 2 K
Temperature time flow
Setpoint ventilation 20 °C
ON point =
Setpoint - Offset =
20°C - 5K =
15 °C
OFF point=
ON point + hysteresis =
15°C
+
2K =
18°C
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