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External signal for desired flow temperature (A230.2 and
A230.4):
A voltage (0 - 10 V) can be applied to the input terminal S8 in order
to determine the desired flow temperature.
The measured voltage on input S8 is converted to a temperature
value by the controller. When the voltage gets higher, the desired
flow temperature increases.
The following settings set up the scaling.
MENU > Settings > Flow temperature
Ext. desired T
Circuit
Setting range
Factory setting
All
Read-out only
The remotely set value for the desired flow temperature is indicated by the
unit °C.
Push the dial to see the graph. Turn the dial to enter the desired
flow temperature value for the input voltages (fixed values) at
1 and 10 volt.
Factory settings are different in A230.2 and A230.4
The applied voltage signal must be 1 Volt as a minimum.
Parameters indicated with an ID no. like "1x607" mean a universal
parameter.
x stands for circuit / parameter group.
Example: Relationship between input voltage and displayed value for the
desired flow temperature
Desired flow temp. (°C)
Volt
This example shows that 1 volt corresponds to 10.0 °C and 10 volt
correspond to 100.0 °C.
A230.2
A value for the desired flow temperature is indicated only when 'Ext.
signal’ (ID 11084) is set to ON.
The read-out ' -- ' means that 'Ext. signal' is set to OFF.
A230.4
A value for the desired flow temperature is indicated only when 'Input
type’ (ID 11327) is set to ON.
The read-out ' -- ' means that 'Input type' is set to OFF.
VI.LG.H4.02
© Danfoss | 2017.05 | 65
Operating Guide ECL Comfort 210/296/310, application A230