Instructions
Intesis
TM
KNX – IR Universal AC
User's manual r1.3 EN
© HMS Industrial Networks S.L.U. - All rights reserved
This information is subject to change without notice
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5.4.1 DPT object type for fan speed
With this parameter is possible to change de DPT for the Control_ Fan Speed and Status_ Fan Speed byte-
type communication objects. Datapoints Scaling (DPT_5.001) and Enumerated (DPT_5.010) can be selected.
o When “Enumerated [DPT 5.010]” is selected, Control_ Fan Speed and Status_ Fan Speed communication
objects for this DPT will appear. Also, depending on the number of fan speeds selected, these objects will
be different.
The first fan speed will be selected if a “1” is sent to the Control_ object. The second fan speed will be
selected sending a “2” and so on.
The Status_ object will always return the value for the fan speed selected.
Important: In both cases if a “0” value is sent to the Control_ object, the minimum fan speed will be
selected. If a value bigger than “2” (in case of 2 speeds) or bigger than “3” (in case of 3 fan speeds)
is sent to the Control_ object, then the maximum fan speed will be selected.
o When “Scaling [DPT 5.001]” is selected, Control_ Fan Speed and Status_ Fan Speed communication
objects for this DPT will appear. Also, depending on the number of fan speeds selected, these objects will
be different.
The formula used to calculate the value to be set in the Control object is ‘100*(n+0,5)/N %’, where n is the
current fan speed and N the maximum number of fan speeds.
On the other hand, the formula to calculate the status to be read according to the current value is ‘100*n/N’,
where n is the current fan speed and N the maximum number of fan speeds.
Check this example with 3 fan speeds:
When a value between 0% and 49% is sent to the Control_ object the first fan speed will be selected.
When a value between 50% and 83% is sent to the Control_ object, the second speed will be selected.
When a value between 84% and 100% is sent to the Control_ object, the third speed will be selected.
The Status_ object will return a 33% when the first speed is selected, a 67% for the second one and a 100%
for the third one.
5.4.2 Enable use of bit-type Fan Speed objects (for Control)
This parameter shows/hides the bit-type Control_ Fan Speed objects.
Fan Speed 1
Fan Speed 3
100%
Status_
0%
83%
50%
Control_
object
Control_
Status_
33%
67%
Fan Speed 2
Control_
Status_