Siemens OpenAir GMA 1 Series User Manual

14/44
Siem ens GMA..1 actuators with spring return CM2Z4614en
Building Technologies 2018-01-11
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: 100 % = Rotary angle 95°
Y Positioning signal
Uo Offset
ΧU Span (for Ys = 100 %)
2
4
0
1
3
5
Uo
30
2
16
10
24
U
Uo
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
* 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°.
Calculating the setting value for ΧU:
Ζ
∴
Ζ∴
Ζ∴ Ζ∴ ∋ ( ∋ ( V16 V2 V10
%50
%100
VUoV10
% YsSpan
%maxYsrangepos.max.
UΔ <,√<,√<
Uo = 2 V, ΧU = 16 V
Actuators
GMA163.1, GMA164.1,
Examples as per the
diagram
Note
Example
Formula
Potentiometer settings

Siemens OpenAir GMA 1 Series Specifications

General

Brand	Siemens
Model	OpenAir GMA 1 Series
Category	Controller
Language	English