Siemens Acvatix SAS Series User Manual

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Siemens Actuators SAS.., SAT.. for valves CE1P4041en
Smart Infrastructure Functions and control 2019-04-09
4.4.4 Manual adjuster
Without fail safe function With fail safe function (SA..33..)
When the motor drives the manual adjuster turns. Thus in automatic mode, the manual adjuster is
used for indication of travel. If the manual adjuster is held firm in this mode, there is no transmission
of power to the gear train.
When pushing the manual adjuster down (1), it engages and the actuator can be manually operated.
Stroke actuator: When turning the manual
adjuster in clockwise / counterclockwise direction
(2), the actuator’s stem extends / retracts.
Rotary actuator: The actuator spindle turns in
the same direction
When turning the manual adjuster in clockwise
direction (2), the actuator’s stem extends.
CAUTION: Turning the manual adjuster in
counterclockwise direction is not possible.
An overload protection prevents damage to the manual adjuster.
Upon actuation and locking the slide switch, the
manual adjuster remains engaged.
When in this mode, do not turn the manual
adjuster (manual adjuster locked).
After pushing and slightly turning the manual
adjuster in counterclockwise direction, it remains
engaged, provided no power is applied.
If power is applied, refer to
"Disengaging the fixing".
When resetting the slide switch, the manual
adjuster returns to automatic mode.
Coupling disengages automatically…
· after 5 seconds if power is applied,
· when power returns; a restart is made
(actuator’s stem retracts), then, the actuator
follows the active positioning signal.
Coupling is disengaged manually by slightly
turning the manual adjuster in clockwise
direction.
Automatic
Manual operation
Fixing the position
Disengaging the fixing

Siemens Acvatix SAS Series Specifications

General

Brand	Siemens
Model	Acvatix SAS Series
Category	Controller
Language	English