User Manual

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Siem ens Actuators without spring return GEB…1 CM2Z4621en
Building Technologies 2017-05-26
3.4 Adjustable characteristic function
A modulating positioning signal DC 0..35 V from a controller controls the actuator. The
rotary angle is proportional to the positioning signal. Using potentiometer "Uo", you can
set the offset for DC 0...5 V, and with potentiometer "ΧU", you can set the span for
DC 2...30 V.
100
0
U
O
Ys [%]
4637D04
2 5 10 35
2)
1)
Χ
U (max. 30 V)
4)
30
Y [V]
3)
Ys Positioning range
For inactive self-adaptation: 100 % = Rotary angle 95°
For active self-adaptation: 100 % = Determined rotary angle
Y Positioning signal
Uo Offset
ΧU Span (for Ys = 100 %)
2
4
0
1
3
5
Uo
30
2
16
10
24
U
U
o
U
Ys
U
4614Z02
Example
Positioning
signal Y
Positioning
range Ys
Settings
Uo ΧU
1) DC 0...2 V 0...100 % DC 0 V DC 2 V
2)
DC 5...10 V
DC 5...35 V
0...17 %
0...100 %
DC 5 V DC 30 V
3)
DC 0...10 V
DC 0...30 V
0...33 %
0...100 %
DC 0 V DC 30 V
4)* DC 0...10 V 0...100 % DC 0 V DC 10 V
4)* Characteristic curve for factory setting
∂ The Y input is limited to max. DC 35 V.
∂ The adjustable span ΧU is max. 30 V.
Define the adjustable span ΧU if the actuator is to open from 0...50 % at a positioning
signal of Y = DC 2…10 V. The offset Uo thus amounts to 2 V. The rotary angle is 90°.
Self-adaptation is inactive.
Calculating the setting value for ΧU:
Ζ
∴
Ζ∴
Ζ∴ Ζ∴ ∋ ( ∋ ( V16 V2 V10
%50
%100
VUoV10
% Ysrangegpositioninspan
%maxYsrangegpositioninmax.
U <,√<,√<Χ
Uo = 2 V, ΧU = 16 V
Actuators
GEB163.1, GEB164.1
Examples as per the
diagram
Note
Example
Formula
Potentiometer settings