Expert area
Part 2: Overview of display values and settings
26
Set value for cooling mode
(only when HS type = cooling is selected)
If a refrigerating machine is present, cooling mode can be
activated using the operating mode selector switch. The
refrigerating machines are regulated to the return flow
temperature [T-Return cooling] (switching hysteresis 2K).
Cooling operation
Designation Value
range
Standard
IV
T-Return cooling
5°C – 25°C
15°C
Use the F button [End] to exit the level
Set values for 0-10V Input / Output
If the controller assigns the HS with the set temperature
through a voltage input, the 0-10V output on the controller
can be adjusted using the following parameters on the
voltage input of the HS.
If the 0-10V input of the controller is used for a
temperature requirement, the evaluation of the current
signal is defined using the same parameters.
Important set values for 0-10V I/O
Configuration/HS1 BUS = 04 => Output of the
temperature setting of the heat generator via the 0-10V
output signal.
Configuration/HS1 BUS = 05 => Output of the set
modulation depth via the 0-10V output signal.
Configuration / F15 Function = 01 => Evaluation of the
preset external header temperature setting via the 0-10V
output signal.
Configuration/F15 function = 03 => Evaluation of the
preset external modulation depth via the 0..10V input.
0-10V I/O
Designation Value
range
Standard
IV
V-CURVE
00 – 11
00
CURVE 11-U1
0.00V – 10.00V 4.00V
CURVE 11-U2
0,00V – 10.00V 0,10V
CURVE 11-T1
00°C – 120°C
20°C
CURVE 11-T2
00°C – 120°C
90°C
Curve 11-UO
0.00V – 10.00V 5.00V
Use the F button [End] to exit the level
Table of voltage curves that can be chosen
No. U1 U2 T1 T2 UO
0 2.0
10.0
0 90 2.0
1 2.5
0.3
38 80 5.0
2 2.5
0.3
38 75 5.0
3 2.5
0.3
38 45 5.0
4 4.0
0.1
20 85 5.0
5 4.0
0.1
20 75 5.0
6 4.0
0.1
20 55 5.0
7 4.0
0.1
30 87 5.0
8 4.0
0.1
38 87 5.0
9 4.0
0.1
38 73 5.0
10 4.0 0.1 38 53 5.0
11 4.0 0.1 20 90 5.0
Set values for cooling mode
T-Return cooling
In Cooling operating mode, the refrigeration machine is
switched on when the temperature set here is exceeded
in the return flow at the sensor [F17]. The refrigeration
machine is switched off when the temperature at [F17]
drops below this temperature [T-Return Cooling – 2K].
Set values for 0-10V Input / Output
V-Curve (only for 0-10V input/output)
One of the defined voltage curves or free-definition curve
11 can be selected here for configuring the voltage input
and the voltage output.
Curve 11-xx (only when V-Curve = 11)
Using parameters U1, U2, T1, T2 and UO, a special
voltage curve can be defined.
U = Voltage, T = Temperature, UO = HS OFF
U1, T1 => Point 1 on the voltage curve
U2, T2 => Point 2 on the voltage curve
The line between these limit points defines the voltage
curve.
UO => Starting with this voltage, HS = OFF
(UO must lie outside of the valid voltage values)