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 | |||
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3) |
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4)* |
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* 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°) Effective span ΔUw = Umax – Umin |