Active Trim Operation; Gps; Resume Functionality; Shallow Water Operation - Mercury 71712 Operation Manual

Electronic remote control
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Section 1 - DTS Controls and Features
Use the buttons and lights on the ERC to control the Active Trim feature.
Ref
Control/LED
ACTIVE TRIM button
a
System status light
PROFILE select buttons (▲
b
and ▼)
Selected profile indicator
c
LEDs (1, 2, 3, 4, 5)

Active Trim Operation

Active Trim automatically controls trim to maintain the optimum engine or drive position based on engine RPM and boat
speed.
Active Trim progressively trims out the engine or drive to maintain an efficient running attitude.
Active Trim will maintain the last known trim position when operating at speeds in excess of 80 km/h (50 mph).
Operation above 80 km/h (50 mph) may require trim adjustments using the panel mounted or control handle trim position
switch.
Active Trim will gradually return the engine or drive to the down position during deceleration.
Active Trim will only function when the engine or drive is in the normal trim range.

GPS

Active Trim uses a GPS signal to determine vessel speed. The Active Trim system will not automatically control trim until the
GPS unit has acquired a signal.

Resume Functionality

If the boat operator overrides the Active Trim system at planing speeds using the trim button, or exceeds 80 km/h (50 mph), the
system will stop controlling the trim. Active Trim will resume automatically under the following conditions:
Override occurred above 80 km/h (50 mph) and the boat operator then decelerates to below 80 km/h (50 mph).
Override occurred above 80% of the rated engine RPM and the boat operator then decelerates to below 80% of the rated
engine RPM.
Override occurred in the cruising speed range and then the boat operator decelerates to idle. Active Trim will become
active on the next acceleration.

Shallow Water Operation

Active Trim cannot detect water depth and will not trim up automatically in shallow water. The boat operator will need to
override Active Trim by trimming the engine or drive manually or pressing the Active Trim button.
Page 12
b
a
b
Active Trim controls on the ERC
Turns the Active Trim feature ON or OFF.
Provides Active Trim status information:
A constant amber light indicates that the system is working normally.
A flashing amber light indicates that the Active Trim system is not controlling trim (user
override). Press the ACTIVE TRIM button to resume Active Trim control.
A flashing red light indicates a problem with the system. Refer to Active Trim Red
Status Light.
Up (▲) ‑ Changes the adjustable trim profile to a more aggressive trim curve (more trim
angle).
Down (▼) ‑ Changes the adjustable trim profile to a less aggressive trim curve (less trim
angle).
Indicates the adjustable profile currently engaged. 1 is the least aggressive trim profile; 5 is
the most aggressive.
NOTE: If the LED indicators are flashing, Active Trim is in setup mode.
c
71956
Function
90-8M0180922
MAY 2021
eng

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