Basic Documentation

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Siemens Rotary actuators without spring return GBB/GIB..1 CE1Z4626en
Smart Infrastructure Technical design 2019-11-28
3.4 Adjustable characteristic function
A modulating positioning signal DC 0..35 V from a controller drives the actuator. The
angular rotation is proportional to the positioning signal. Using potentiometer "Uo", you
can set the offset for DC 0...5 V, and with potentiometer "DU", you can set the span for
DC 2...30 V.
100
0
U
O
Ys [%]
4637D04
2 5 10 35
2)
1)
D
U (max. 30 V)
4)
30
Y [V]
3)
Ys Positioning range
For inactive self-adaptation: 100 % = angular rotation 95°
Y Positioning signal
Uo Offset
DU Span (for Ys = 100 %)
Uo
2
4
0
1
3
5
D
U
30
2
15
10
5
20
25
Uo
4
6
3
7
Z
0
1
D
U
Example
Positioning
signal Y
Positioning
range Ys
Settings
Uo DU
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 DU is max. 30 V
Define the adjustable span DU 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 angle of rotation is
90°.
Calculating the setting value for DU:
[
]
[ ]
[ ] [ ] ( ) ( ) V16 V2 V10
%50
%100
VUoV10
% Ysrangegpositioninspan
%maxYsrangegpositioninmax.
U =-×=-×=D
Uo = 2 V, DU = 16 V
Actuators
GBB/GIB163.1,
GBB/GIB164.1
Examples as per
the diagram
Note
Example
Formula
Potentiometer settings