Manual Mode - Samson TROVIS 5757-3 Mounting And Operating Instructions

8.3 Manual mode

Manually changing the stem position
The manual adjuster can be used to move the actuator stem to the required position when the
actuator is in the de-energized state. A manual adjustment of the stem position only makes
sense when the power supply is switched off as the stem position is determined by the
actuator in closed-loop operation, meaning any manual adjustment would be automatically
corrected by the actuator.
The stem position is changed at the manual adjuster (see Fig. 8-1):
Î Switch off the supply voltage.
Î Turn clockwise
The actuator stem extends (approx. four turns for 1 mm travel).
Î Turn counterclockwise
The actuator stem retracts (approx. four turns for 1 mm travel).
Fig. 8-1: Manual adjuster
EB 5757 EN
Travel indicator
Travel and direction of action can be read
off the travel indicator on the side of the ac-
tuator housing (see Fig. 8-2).
Manual
adjuster
Fig. 8-2: Travel indicator
Operation
Travel
indicator
8-3