62
Parameter setting
Sensor Vari KNX 3L-TH-D
• Status: 19.10.2016 • Errors excepted. Subject to technical changes.
Now specify what should be sent when the control is blocked. Set a value greater 0
(=OFF) to receive a basic heating level, e.g. for floor heating.
On release, the control variable follows the rule again.
In case of a common control variable for heating and cooling, 0 is always transmitted
as a fixed value.
2-point-control (only level 2):
2-point-control is used for systems which are only switched to ON or OFF.
Enter the hysteresis that prevents frequent on/off switching of temperatures in the th-
reshold range.
If separate control variables are used, select whether the control variable of the 2nd le-
vel is a 1 bit object (on/off) or an 8 bit object (on with percentage/off).
Now specify what should be sent when the control is blocked. Set a value greater 0
(=OFF) to receive a basic heating level, e.g. for floor heating. On release, the control va-
riable follows the rule again.
6.15.2. Cooling control level 1/2
If a cooling control mode is configured, one or two setting sections for the cooling le-
vels are displayed.
In the first level, cooling is controlled by a PI control in which either control parameters
or predetermined applications can be selected.
In the second level (therefore only for 2-level cooling), cooling is controlled via a PI or
a 2-point-control.
When blocked, the control variable shall
• not be sent
• send a specific value
Value (in %)
(if a value is sent)
0...100
Control type
(is determined at a higher level for com-
mon control variables)
•
2-point-control
Hysteresis (in 0.1°C)
0...100; 20
Control variable is a
• 1 bit object
• 8 bit object
Value (in %)
(for 8-bit object)
0...100
When blocked, the control variable shall
• not be sent
• send a specific value
Value (in %)
only if a value is sent
0...100
Summary of Contents for Vari KNX 3L-TH-D
Page 5: ...4 Clarification of signs ...
