Throttle Systems


Vital Link produces throttle systems specifically designed for both Jet Engine and Turbo-shaft engines. The Throttle systems utilise a position demand input from either a manual lever or potentiometer, or via software control mechanisms. The manual input devices are housed within the Vital Link Quadrant and are designed to accommodate up to 2 levers, and a number of rotary potentiometers. In addition, the quadrant may come fitted with an emergency stop push-button option, for integration into the facility emergency stop circuit, and a number of physical pushbuttons if required.


Throttle Quadrant

Throttle Quadrant

The throttle input demand position is then translated via a real time PLC controller to operate either a stepper motor or an electrical signal to provide the required signal or motion on the engine.


When operating a rotational device, Vital Link utilises high accuracy encoders mounted on the stepper motors in order to ensure positional accuracies of < 0.1°, with a max travel time of < 1 Second from initial movement of the input lever, to the final stop position of the stepper motor. Stepper motor assemblies can be specified with either ATEX or non-ATEX components.


ATEX Rated Stepper Motor Assembly

ATEX Rated Stepper Motor Assembly

In automatic operation the Input levers are by-passed allowing the Vital Link Auto Test software to control the engine in accordance with the engine test specification. The FADAS™ continually monitors Engine safety parameters and is able to command the throttle to return to idle, or cut-off if necessary, however in all cases, the operator is able to regain control of the throttle by moving the physical input lever.

Throttle Auto Test Panel

Throttle Auto Test Panel