K-BUS
KNX/EIB 3.5/5.0/10.1 inch Touch Panel Plus
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R
Parameter “Threshold value OFF<-->speed Low[1..999]/ [1…4000]”
This parameter is used to define the threshold value OFF<->speed Low. Options: 1...999/1...4000
If the control value is larger than or equal to the setting threshold value, the low Fan lever is run; if the control
value is lower than the setting threshold value, the blower is turned off.
——Parameter“Threshold value speed low<-->medium[1..999]/ [1…4000]”
This parameter is used to switch the threshold value to low<->medium. If the control value is larger than or
equal to the setting threshold value, the mid-range fan lever is run.
Options: 1...999/1...4000
——Parameter“Threshold value speed medium<-->high[1..999]/ [1…4000]”
This parameter is used to switch the threshold value to medium<->high. If the control value is larger than or
equal to the setting threshold value, the high-range fan lever is run.
Options: 1...999/1...4000
Tip:
The controller evaluates the threshold in ascending order.
First check →OFF <->low fan speed threshold →low fan speed <->medium fan speed →medium fan speed
<->high fan speed.
The correctness of function execution is guaranteed only in this situation:
——Parameter “Hysteresis value is threshold value in +/- [10…30]/[100..400]”
This parameter is used to set the hysteresis value is threshold value. The hysteresis can prevent the fan
from causing unnecessary actions when the control value fluctuates near the threshold value.
Options: 10...30/100..400
For example, the control value is PM2.5, the hysteresis is 10, the threshold is 35, the upper threshold is 45
(thr hysteresis), and the lower threshold is 25 (threshold-hysteresis). When the control value is between
25 and 45, it will not Caused by the fan's action, still maintain the previous state.
Only less than 25 or larger than or equal to 45, the fan will change. As the following pictures show,
