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EB 8331-3 EN 7-1

Operation

7 Operation

After connecting the supply voltage, the ac-

tuator is ready for use.

7.1 Three-step mode

In three-step mode, the actuator stem is

moved in the corresponding direction by ap-

plying a signal to the terminal eL or aL (see

Fig.7-1).

Actuators with fail-safe action additionally

require a constant supply voltage (see the

'Installation' section).

Fig.7-1: Three-step control

7.2 Mechanical override

To operate the manual override, place a

4mmhexwrenchontheredactuatorshaft

located at the side of the housing (see

Fig.7-2).Turnthehexwrenchclockwiseto

move the actuator in 'aL' direction and

counterclockwise to move it in the 'eL'

direction(seeFig.7-1).Thehexwrenchis

included in the scope of delivery. It is

attached to the bottom of the housing.

Fig.7-2: Actuating shaft for manual override

Manual override is only possible in actuators

with fail-safe action when the supply voltage

(terminals L and N) is connected.

Note

Samson 3214 Mounting And Operation Instructions

Other manuals for Samson 3214