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General| Brand | Simrad |
|---|---|
| Model | NAC-2 |
| Category | Autopilot System |
| Language | English |
Details NAC-2/NAC-3 capabilities, applications, and specifications for different boat sizes.
Emphasizes the critical need for correct autopilot computer setup for proper function.
Configuring system data sources required for initial startup and network changes.
Setting boat type, length, and cruising speed to optimize steering parameters.
Controls how the autopilot computer operates the vessel's steering system.
Options for setting drive output: Solenoid for on/off, Reversible motor for variable speed.
Setting the nominal drive voltage (12V or 24V) matching the drive unit.
Defines the use of the engage output for clutch engagement or automatic mode switching.
Crucial step to select the correct rudder feedback source before calibration.
Visual guide showing how to select the rudder source via MFD menus.
Steps to determine the direction of the rudder feedback unit.
Verifies drive direction, speed, and minimum power output.
Calibration process for Virtual Rudder Feedback (VRF) parameters.
Guidance on tuning the autopilot for optimal steering performance, covering manual and auto methods.
Automatic tuning sequence involving S-turns to set key steering parameters like Rudder Gain.
Detailed steps for manually adjusting Rudder Gain and Counter Rudder for fine-tuning.
Controls rudder application relative to heading error; affects stability and overshoot.
Amount of counteracting rudder applied to stop turns smoothly at course changes.
List of items to verify installation and software configuration according to previous chapters.
Procedure to restore the autopilot computer to its factory default settings.
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