Adjustable characteristic function - Basic Documentation - GMA121.1E - GMA126.1E - GMA131.1E - GMA136.1E - GMA161.1E - GMA161.1E/MO - GMA163.1E - GMA164.1E - GMA166.1E - GMA321.1E - GMA321.1E/SW - GMA326.1E

OpenAir™ GMA...1 actuators with spring return

Product Family
OpenAir
Product Group
Damper actuators
Content Language
English
Content Type
Technical Documentation > Basic Documentation
Product Version
Status
Valid
Date
2018-01-11
Document No
CM2Z4614en
Download ID
22970
Stock No.
BPZ:GMA121.1E
BPZ:GMA126.1E
BPZ:GMA131.1E
BPZ:GMA136.1E
BPZ:GMA161.1E
BPZ:GMA163.1E
BPZ:GMA164.1E
BPZ:GMA166.1E
BPZ:GMA321.1E
BPZ:GMA326.1E
S55499-D300
S55499-D512
Product No.
GMA121.1E
GMA126.1E
GMA131.1E
GMA136.1E
GMA161.1E
GMA161.1E/MO
GMA163.1E
GMA164.1E
GMA166.1E
GMA321.1E
GMA321.1E/SW
GMA326.1E
Access level
Internet
File Type
html

Actuators
GMA163.1, GMA164.1,

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 "ΔU", you can set the span for DC 2...30 V.

Ys Positioning range: 100 % = Rotary angle 95°

Y Positioning signal

Uo Offset

ΔU Span (for Ys = 100 %)

Examples as per the diagram

Example

Positioning signal Y

Positioning range Ys Settings
Uo ΔU
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

Note

  • The Y input is limited to max. DC 35 V.

  • The adjustable span ΔU is max. 30 V.

Example

Define the adjustable span ΔU 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°.

Formula

Calculating the setting value for ΔU:

Potentiometer settings

Uo = 2 V, ΔU = 16 V

Characteristic function for the above example

Max. positioning range Ysmax = 100 % (95°)
Span Ys = 50 % (47.5°)
Offset Uo = 2 V
Span ΔU = 16 V

Effective span

ΔUw = Umax – Umin
= 10 V - 2 V = 8 V