POLA Xfarm User Manual

38
D.1.2.3.3.1 Natural> Proportional> Flap 1
Path: Home> Installation>> Climate> Flap> Natural> Proportional> Flap 1
When flap working is set on Proportional 0-10V or with Feedback Potentiometer, flap works in natural
ventilation mode and is actioned according to the temperature probe in a proportional way according
to the position of the flap (when controlled by potentiometer a feedback potentiometer is required).
When flap is controlled by feedback potentiometer (PT option), the accuracy of the system is given by
the accuracy of the flap mechanical system.
The system checks and corrects this deviation to optimize the system.
To obtain the complete closing and opening flaps, when set 0% is required and 100%, closing and
opening relay stays always in "On" condition in order to stop the flap with safety's limit-switch.
*1
In order to minimize the flap adjustments, a “no work” proportional band can be set at proportional
band of not driving (Neutral band).
For example with Neutral band= 0.2° the flap driving will be made every 0.2° of variation of the
temperature probe. When increasing this value the number of on-off cycles is reducedbut the
accuracy of the system is reduced too.
*2
Minimum opening according to Minimum opening.
*3
Maximum opening according to Maximum opening.
*4
According to what was set in Configuration (see par. D.C) the temperature probe of Flap1 can be
either the same probe of Ventilation or an indipendent probe.
Hysteresis band extension of Flap
*1
.
Proportional band of Flap 1.
% Minimum opening of Flap 1.
% Maximum opening of Flap 1.
Neutral band
(Range: 0.0°...0.2°...30.0°)
Proportional
(Range: 0.0°...3.0°...30.0°)
Minimum opening
(Range: 0
%
...100
%
)
Maximum opening
(Range: 0
%
...100
%
)
The same for Flap 2
D. Installation - Flap
100%
75%
50%
25%
0% *2
100% *3
FLAP 1
Potentiometer Working
Proportional
Flap 1 probe
temperature
*4
Proportional
10V
7,5V
5,0V
2,5V
10V *3
FLAP 1
0-10V Working
Flap 1 probe
temperature
*4
0% *2
01 Flap relative set
Set referred to the Ventilation set
programmed in Settings>Climate
16 Flap relative set
Set referred to the Ventilation set
programmed in Settings>Climate

POLA Xfarm Specifications

General

Brand	POLA
Model	Xfarm
Category	Controller
Language	English