Elsner KNX VOC-UP basic, Инструкция по установке и настройке

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15 Parameter setting
Mixed gas sensor KNX VOC-UP basic • Version: 27.01.2020 • Technical changes reserved. Errors reserved.
Threshold value
Set the threshold values directly in the application program using parameters, or de-
fine them via the bus using a communications object.
Threshold value setpoint using parameter:
Set the threshold values and hysteresis directly.
Threshold value setpoint using a communications object:
Beforehand, enter how the threshold value will be received from the bus. Basically, a
new value can be received, or simply a command to increase or decrease.
During initial commissioning, a threshold value must be defined which will be valid un-
til the 1st communication of a new threshold value. For units which have already been
taken into service, the last communicated threshold value can be used. Basically, a
temperature range is given in which the threshold value can be changed (object value
limit).
A set threshold value will be retained until a new value or a change is transferred. The
current value is saved in EEPROM, so that this is retained in the event of a power sup-
ply failure and will be available once the power supply is restored.
Switching output
Set the behaviour of the switching output when a threshold value is exceeded/under-
cut. The output switching delay can be set using objects or directly as a parameter.
Threshold value setpoint using Parameter • Communications object
Threshold value in ppm 0...5000; 1200
Hysteresis of the threshold value in % 0 … 50; 20
Threshold value setpoint using Parameter • Communications object
The last communicated value should be
retained • never
• after restoration of power
• after restoration of power and
programming
Start threshold value in ppm
valid till 1st communication
0...5000; 1200
Object value limit (min) in ppm 0...5000
Object value limit (max) in ppm 0...5000
Type of threshold change Absolute value • Increase/decrease
Step size
(upon increase/decrease change)
1 • 2 • 5 • 10 • 20 • 50 • 100 • 200
Hysteresis of the threshold value in % 0 … 50; 20