Data Sheet for Product

SAX Electronic Valve Actuator Technical Instructions
Non-spring Return, 24 Vac 3-position (Floating) Control Document Number 155-507
June 15, 2016
Siemens Industry, Inc. Page 5
Manual Override
Automatic mode
When the motor drives the manual adjuster turns. 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.
Manual operation
When pushing the manual adjuster down (1), it engages and the actuator can be
manually operated.
When turning the manual adjuster in a clockwise/counterclockwise direction (2), the
actuator’s stem extends/retracts.
An overload protection prevents damage to the manual adjuster.
Setting the position
When the black slide switch is pushed out, the manual adjuster remains engaged.
When in this mode, do not turn the manual adjuster.
Disengaging the setting
When the black slide switch is pushed back in, and the manual adjuster is not pressed
down, the manual adjuster returns to Automatic Mode.