Note:
Perform settings on the auxiliary switch only in deenergised state.
1
Manual adjusting
Connect the actuator and move it into the desired position.
2
Auxiliary switch 1
Turn rotary knob until the arrow points to the vertical line.
The arrow direction always indicates the switching position (S1-S2 or S1-S3).
If the auxiliary switch should switch in the opposite direction, rotate the auxiliary switch rotary
knob by 180°. Alternatively the switching position can be checked with a continuity tester
on the cable of the auxiliary switch.
3
Auxiliary switch 2
Turn rotary knob until the arrow points to the vertical line.
Turn the spindle clamp
2
and consider the arrow direction of the auxiliary switch rotary knob at
the same time.
The arrow direction always indicates the switching position (S1-S2 or S1-S3).
If the auxiliary switch should switch in the opposite direction, rotate the auxiliary switch rotary
knob by 180°. Alternatively the switching position can be checked with a continuity tester
on the cable of the auxiliary switch.
Release (or disengage) button
1
.
4
Auxiliary switch - 2
Same procedure as for auxiliary switch 1 (step
1
to
2
).
1
2
3
Note:
Perform settings on the auxiliary switch only in deenergised state.
1
Manual override control
Turn the hand crank until the desired switching position is set.
2
Fasten the locking device
Turn the locking switch to the «Locked padlock» symbol.
3
Auxiliary switch 1
Turn rotary knob until the arrow points to the vertical line.
The arrow direction always indicates the switching position (S1-S2 or S1-S3).
If the auxiliary switch should switch in the opposite direction, rotate the auxiliary switch rotary
knob by 180°. Alternatively the switching position can be checked with a continuity tester
on the cable of the auxiliary switch.
4
Unlock the locking device
Turn the locking switch to the «Unlocked padlock» symbol or unlock with the hand crank.
5
Auxiliary switch 2
Same procedure as for auxiliary switch 1 (step
1
to
4
).
3
5
1
4
2
S2A-F
Auxiliary switch unit, suitable for the spring return
actuators NF..A.., SF..A.., LF..
Operating controls and indicators
www.belimo.com
S2A-F • en-gb • 2019-04-12 • subject to changes
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