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Dometic SEASTAR OPTIMUS EPS Installation Manual page 31

Inboard electronic power steering with electric actuator

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Electric Inboard Steering Actuator
6.3
Steering setup
The setup steps in this section are required for all Optimus EPS systems. All the
steering setup tasks are done from the Steering Setup menu at Dealer Menu >
Initial Setup > Steering.
6.3.1 Configuration
The configuration step teaches the SCU about your steering geometry.
Determine from your tiller geometry which direction the boat steers when the
shaft extends, and how much rudder angle you get at hard over.
Go to Configuration > Set Cylinder Extend Turn Dir and press the + or
– button to set the parameter to the correct direction. Save to exit.
Use + or – to adjust the Hard Stop Rudder Angle parameter to match your
actual steering angle at hard stop. This parameter controls how the steering
angle is scaled in the SCU. It affects the steering angle displayed on the
CANtrak, as well as all steering settings that are based on steering angle.
6.3.2 Calibrating the Electric Actuators
The calibration procedure teaches the SCU the end-of-travel points for the actuator(s).
The SCU expects to see these end points within a range of values based on the actuator
stroke. If the actuator is unable to move through its full stroke the calibration will fail.
NOTE
In some wakeboat applications the tiller geometry may prevent the full
stroke of the actuator. If this is the case you will need to detach it from
the tiller in order to calibrate it. You must prevent the shaft from rotating
during calibration.
From the steering setup screen, select Calibrate Steering and press > to enter
the calibration menu, then press > again to enter calibration mode.
The display will prompt you through the calibration procedure. Follow the
instructions on screen. Keep turning in the indicated direction until the screen
prompts you to stop or change direction. If your system is configured with two
actuators they will both calibrate at the same time.
If the calibration is successful, the screen will display a green check and display
"Calibration successful" in the status field. Exit the screen or power cycle the
system to continue.
EN
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