Adjustable Characteristic Function - Siemens OpenAir GEB 1 Series Technical Basics

Actuators
GEB163.1, GEB164.1
Examples as per the
diagram
Note
Example
Formula
Potentiometer settings
14/44
Siemens
Building Technologies
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 "
DC 2...30 V.
Ys [%]
1)
100
0
2 5 10
Χ
U
O
Ys Positioning range
For inactive self-adaptation: 100 % = Rotary angle 95°
For active self-adaptation:
Y Positioning signal
Uo Offset
Χ U Span (for Ys = 100 %)
Positioning
Example
signal Y
1) DC 0...2 V
DC 5...10 V
2)
DC 5...35 V
DC 0...10 V
3)
DC 0...30 V
4)* DC 0...10 V
4)* Characteristic curve for factory setting
∂
The Y input is limited to max. DC 35 V.
∂
The adjustable span
Define the adjustable span
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
max. positionin g range
Χ <
U
span positionin g
Χ
Uo = 2 V, U = 16 V
Actuators without spring return GEB...1
4)
3)
30
U (max. 30 V)
100 % = Determined rotary angle
Positioning
Uo
range Ys
0...100 % DC 0 V
0...17 %
DC 5 V
0...100 %
0...33 %
DC 0 V
0...100 %
0...100 % DC 0 V
Χ U is max. 30 V.
Χ
U if the actuator is to open from 0...50 % at a positioning
Χ
U:
Ζ ∴
Ys max %
Ζ ∴
∋
√
10 V
Ζ ∴
range Ys %
Χ
U", you can set the span for
2)
35
Y [V]
Settings
ΧU
DC 2 V
DC 30 V
DC 30 V
DC 10 V
100 %
Ζ ∴
( ∋
, < √
Uo V 10 V
50 %
Y s
U
U
Uo
2
10
16
U
24
30
1
0
2
3
5
Uo
4
(
, <
2 V 16 V
CM2Z4621en
2017-05-26