The Actuator Control Unit System or ACU System is a modular propulsion control system designed to be adaptable for multiple configurations with simple selection of various components.

The ACU system can be used to control the waterjet deflector(s) as well as engine throttle and gearbox engagement.

The key component in the system is the ACU, a controller box which can be connected to 3 different actuators depending on its role within the overall system.

The ACU can accept an analogue voltage signal (typically 0-5v), a CAN signal, or a mechanical input from a 33C cable via the built in potentiometer.

The ACU can be configured via the integrated button and ‘traffic light’ LED’s or via the ACU Service tool available for mobile platforms.


The ACU control system is available in several different assemblies. When it comes to controlling a jet, the correct ACU control system assembly depends on the model of the jet and the model of the control device.


Operating voltage                                             12 Vdc ±20% or 24 Vdc ±20% (protection against reverse polarity)

Electric actuator position signal                      0 … 5 V or potentiometer 5 kΩ … 20 kΩ (scale can be calibrated)

Mechanical control                                          33C control cable, 80 mm stroke

Protection level                                                 IP67