Bedienungsanleitung Garmin GHP 12 Autopilot System (Seite 21 von 28) (Englisch)

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GHP12InstallationInstructions 21

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Although all of the conguration is typically completed automatically through wizards, you can manually adjust any setting (page 16).

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Dealer Autopilot

Conguration

Vessel Type Allows you to select the type of vessel on which the autopilot is installed.

Autopilot Tuning > Rudder

Gains

Gain Allows you to adjust how tightly the rudder holds a heading and makes turns.

If you set this value too high, the autopilot may be overactive, attempting to constantly adjust

the heading at the slightest deviation. An overactive autopilot can cause excess wear and

tear on the drive unit (page 15).

Autopilot Tuning > Rudder

Gains

Counter Gain Allows you to adjust how tightly the rudder corrects turn overshoot.

If you set this value too high, the autopilot can overshoot the turn again when attempting to

counter the original turn (page 15).

Autopilot Tuning Acceleration Limiter Allows you to limit the speed of autopilot-controlled turns.

Increase the percentage to limit the turn rate, and decrease the percentage to allow higher

turn rates.

Navigation Setup Fine Heading

Adjustment

Allows you to set the lubber line (heading offset) for the autopilot.

Navigation Setup > NMEA

Setup

NMEA Checksum If the connected NMEA 0183 GPS unit incorrectly calculates checksums, you may still be

able to use it if you turn this setting off. When set to off, data integrity is compromised.

Navigation Setup > NMEA

Setup

Reversed XTE If the connected NMEA 0183 GPS unit sends the incorrect steering direction with the cross

track error signal, use this setting to correct the steering direction.

Navigation Setup Navigation Gain Allows you to adjust how aggressively the autopilot eliminates cross-track error while

following a Route-To pattern.

If this value is too high, the autopilot can oscillate back and forth across the course line over

long distances.

If this value is too low, then the autopilot may respond slowly in eliminating cross-track error.

Navigation Setup Navigation Trim

Gain

Allows you to adjust the acceptable amount of long term cross-track error while following a

Route-To pattern. Only adjust this setting after the navigation gain has been set.

If this value is too high, the autopilot will overcompensate for cross-track error.

If this value is too low, the autopilot will allow a large long term cross-track error.

Steering System Setup Verify Steering Dir. This setting tells the autopilot which direction the rudder must move to turn the vessel to port

and to starboard. You can test and reverse the steering direction if necessary.

Steering System Setup Drive Unit Class Allows you to specify the class of your drive unit (refer to www.garmin.com for more

information).

Select Other for non-Garmin drive units.

Steering System Setup >

Drive Unit Class > Other

Drive Unit Voltage Only applicable if the Drive Unit Class has been set to “Other”.

This setting tells the autopilot the voltage it should supply to the drive unit motor. Refer to the

documentation supplied by the manufacturer of your drive unit to determine motor voltage

specication.

An incorrect setting can cause damage to your drive unit motor.

Steering System Setup >

Drive Unit Class > Other

Max. Current

Threshold

Only applicable if the Drive Unit Class has been set to “Other”.

This setting tells the autopilot the maximum amount of current it can supply to the drive unit

motor.

Refer to the documentation supplied by the manufacturer of your drive unit to determine motor

current specication.

An incorrect setting can cause damage to your drive unit motor.

Steering System Setup >

Drive Unit Class > Other

Clutch Voltage Only applicable if the Drive Unit Class has been set to “Other”.

This setting tells the autopilot the voltage it should supply to the drive unit clutch. Refer to the

documentation supplied by the manufacturer of your drive unit to determine clutch voltage

specication.

An incorrect setting can cause damage to your drive unit clutch.

Steering System Setup >

Drive Unit Class > Other

Generic Drive Unit

Tune

Only applicable if the Drive Unit Class has been set to “Other”.

This initiates an automatic tuning procedure which determines an appropriate gain value for

the installed drive unit.

While performing this tune the autopilot will temporarily take control of the rudder.

Steering System Setup >

Drive Unit Class > Other >

Advanced Drive Unit Tuning

Speed Tune Only applicable if the Drive Unit Class has been set to “Other”.

Allows you to adjusts how aggressively the drive unit responds to a given input (page 17).

If this number is too high, the drive unit will overshoot and oscillate around its target position.

If this number is too low, the drive unit will respond slowly to a commanded change in position.

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Garmin GHP 12 Autopilot System Seite 21

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