Manual Adjuster - Siemens Acvatix SAS Series Basic Documentation

Automatic
Manual operation
Fixing the position
Disengaging the fixing
Siemens
Smart Infrastructure
4.4.4

Manual adjuster

Without fail safe function
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
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).
When resetting the slide switch, the manual
adjuster returns to automatic mode.
Actuators SAS.., SAT.. for valves
Functions and control
With fail safe function (SA..33..)
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.
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".
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.
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CE1P4041en
2019-04-09