Principle Of Operation; Manual Adjustment - Baelz Automatic 373-E07 Operating Instructions Manual

Motorized Linear Actuator

4.3 Principle of operation

Motorized linear actuators to operate control valves for flow regulation applications in control
and process technology. The self-locking threaded spindle/spindle nut is driven by an electric
motor via a gearbox. This converts the rotary movement into a linear movement. Load-
dependent limit switches dictate the end positions

4.3.1 Manual adjustment

release button
manual adjuster
Manual adjustment may only be carried out when the motor is not in motion. To adjust, press
and hold the yellow release button and turn the manual adjuster until the desired position is
reached. As soon as the yellow release button is no longer depressed, the actuator follow the
signal from a control system or a built-in positioner.
If the manually set position is to be maintained, ensure that the input signal
Tip:
from the control system or positioner is deactivated.
W. Baelz & Sohn GmbH & Co. · Koepffstrasse 5 · 74076 Heilbronn · Germany · www.baelz.de
baelz 373-E07
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