Linear Lectrotab Autoset II System User manual

Linear Devices Corporation
Lectrotab Electromechanical Trim Tab Systems
Lectrotab Autoset II System
Literature #E052404
•Product Description
•Installation
•Operation
•Retrofitting
Linear Devices Corporation, 8790 Park Central Drive, Richmond, VA, 23227, USA
www.lectrotab.com

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TABLE OF CONTENTS
Introduction.…………………………………….…….3
Autoset II Description and Operation…..…………….4
Autoset II Layout…………………..……………..…..4
Stroke Time Programming……………………………5, (paragraph 8)
Installation…………………………….………………6
Installing Manual Switches……………………………7
Control and Power/Logic Wiring..……………………8
Manual Switch Wiring Diagram………………………9

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INTRODUCTION
Thanks for your interest in the Lectrotab, Autoset II integrated trim tab control and tab
position indicator. The Autoset II is a software driven, microprocessor based control,
featuring positive click control keys in a rainproof display. The Autoset II is compatible with
all 4 or 8 second stroke time Lectrotab actuators and can replace the standard Lectrotab
manual rocker switches in new or existing installations.
The Autoset II design is unique in that no position feedback device is needed in the actuator.
This means fewer components and added reliability, and the same Lectrotab actuators can be
used with either the Lectrotab manual switches or the electronic Autoset II control.
This manual covers the Autoset II which is the second version of the original Autoset which
was introduced in September of 1998. The Autoset II is identical to the original Autoset in
size and configuration and uses the same keypad helm control and interconnecting wiring.
The difference is in the power/logic circuit board and software, accommodating two added
features. This board is located in the white metal enclosure, model AS-2. The Autoset II
board will directly replace the Autoset board; therefore, production of the original Autoset
board has been discontinued. The price is the same.
The Autoset II provides the following two new features:
1. More power will be available to each tab actuator. To accomplish this, the power
output transistors have been changed to sealed mechanical relays. The Autoset was
restricted to one actuator per tab; the Autoset II will power a maximum of two
actuators per tab.
2. The four terminals marked A, B, C and D are used on the Autoset II board to
accommodate one or more sets of manual rocker switches which can be installed and
used along with the one, or maximum of two, Autoset keypad controls. The rocker
switch control assembly for the Autoset II will look just like the current Lectrotab
manual rocker switch control but the circuitry will be different. See page 8 for details.
DO NOT USE THE WRONG SWITCHES. READ THIS MANUAL—BE
CAREFUL.

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AUTOSET II DESCRIPTION AND OPERATION
The Autoset II control can be used with 12 or 24 Volts D.C. and is a rainproof, software
driven, microprocessor based device, using one or two keypad type controls along with any
number of optional manual switches. The Autoset II keypad controls operate as outlined
below.
1. Two tab position indicators display left and right tab positions on two separate vertical
bar graphs. When operating, one flashing LED at the top denotes the tab is fully
retracted and 9 LED’s lit, denotes that the tab is fully deployed. Tab position
indicating LED’s can be dimmed in four steps for nighttime operation by pressing and
holding the MEM 1-6 key. Release the key at the desired intensity level. At system
off, the Autoset will take a few seconds to power down. During this period, the LED
intensity will be automatically returned to bright for operation the next day.

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2. The upper center key, marked AUTO RET, when manually depressed momentarily,
causes a full retraction of both tabs, plus a 2 second overrun to synchronize the tabs
and indicators. This can be done at any time. Manually holding this key will sustain
the retraction process.
3. For LEFT bow down, push Key # 1. The RIGHT tab will deploy and the right
indicator will show tab position with a total of 9 LED’s lit at the fully deployed
position.
NOTE
Push the control keys until they “click” to activate their respective circuits.
4. For Right bow down, push key #3. The LEFT tab will deploy and the left indicator
will show tab position.
5. For Full bow down, push Key #2. Both tabs will deploy and both indicators will show
tab position. NOTE
Pushing keys 1 and 3 simultaneously will not move both
tabs; use key #2 to deploy both tabs simultaneously.
6. The three lower keys, 4, 5 and 6, are the bow up, or tab retract keys, but otherwise
operate identically to keys 1, 2 and 3.
7. The key marked MEM 1-6 controls deployment or retraction of both tabs to preset
positions stored in memory. While running your boat, adjust the tabs for any setting to
which you might want to return at a later time, during this or a subsequent trip. With
the tabs in this desired position, SIMULTANEOUSLY, and MOMEMTARILY, push
the MEM 1-6 key along with any one of the (6) keys marked 1 through 6. For
example, if you choose to store a tab configuration in memory 1, push MEM 1-6
simultaneously with key 1, the position of each tab will be recorded in memory #1 and
will remain recorded even after gage switch off or even battery removal, until another
position is recorded over top of it. Commensurate with this simultaneous keystroke,
the lowest LED on each indicator will flash until the 3 second “write to memory”
process is completed. The Autoset will store up to six tab configurations for recall at
any time. To recall any of the 6 stored tab positions, numbers 1 through 6, push the
MEM 1-6 key FOLLOWED by pushing the key where you stored the tab position you
now want. Make these memory recall keystrokes deliberately – do not rush the process.
8. The AUTO RET key, if pressed simultaneously with the #4 key, will change the
Autoset software to operate with Lectrotab 4 second actuators models C and D. The
left LED display will show (4) LED’s lit to confirm this setting. Press AUTO RET
simultaneously with the #6 key to accommodate 8 second actuators models A and B.
The left LED display will show (8) LED’s lit to confirm this setting. All Autoset II
controls are shipped set for 8 second actuators. Be sure and change this setting if 4
second actuators are used.

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9. When the Autoset system activation power switch is turned off, the Autoset II will
fully retract the tabs, return the LED intensity to bright, if it has been dimmed, and
automatically store all newly programmed tab positions in permanent memory.
Autoset II shutdown will automatically occur 5 seconds after the power switch is
turned off.
INSTALLATION
TOOLS: Ordinary hand tools, mechanical and electrical, marine sealant, drill bits and a saber
saw.
CONTROL PANEL: The Autoset II control keypad model ACK-1, is the very same control
as used on the original Autoset and the control bezel is embossed “AUTOSET”. The control
has the same overall height and width as the manual rocker switch control, 3 1/4” high x 3 1/8”
wide, but the cutout is larger, measuring 2 1/2” high by 2 5/16” wide. Use the Autoset control
for a template. The control is rainproof from the top but open underneath so must be installed
in a panel or console where the underneath is protected. Use a small amount of sealer around
the bezel to seal it to the panel. The ACK-1 control panel is shipped with an attached 36”
interconnect cable which connects to the power logic module. This cable may be lengthened.
POWER LOGIC MODULE: The power logic module measures 6” x 5 1/8” x 2 1/4” high,
and may be installed on a horizontal or a vertical surface, but only in an area suitable for the
installation of non-water resistant electronic components. Wires enter on the left and right ends
of the module. For a complete wiring overview, see the diagrams on page 8.
Wiring of the Autoset II system begins with the interconnect cable which leads forward from
the actuator interconnect terminal strip. See the Lectrotab installation manual and follow it
through the top of page 7. Instead of connecting the interconnect cable to the manual switch as
shown, connect its 4 wires, red, black, green, and white, to the upper right hand side of the
power logic module as shown on page 8 as follows:
Red wire to port actuator white White wire to starboard actuator white
Black wire to port actuator black Green wire to starboard actuator black
Connect the Autoset control cable, which may be lengthened if needed, to 1, 2, 3 and 4 on the
power logic module at the lower left hand side. Red to 1, black to 2, white to 3, and green to
4. One or two keypad controls may be connected in parallel to serve one or two locations. Do
not connect more than two keypad controls because the LED’s on more than two keypad
controls will overload the Autoset II LED power supply. See page 8.
Using #14 AWG wire, connect either 12 or 24 VDC power, to the point marked “- power +”,
observe polarity. Wire directly to the boat’s D.C. electrical distribution panel through a 15
AMP fuse or circuit breaker. Reverse polarity will do no harm but the system will not come
on. This is the trim tab system main power supply and is intended to be left on whenever the
boat’s main switches are on and the D.C. electrical distribution panel is energized.

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To the point marked “pwr”, connect an AWG #18 wire from a switch, which will be the
Autoset “system activation power” switch, and which is convenient to turn off after docking
the boat. When this switch is turned on, the system will turn on, make sure the tabs and
indicators are synchronized in the tabs up position, and be ready for service. When this switch
is turned off, the Autoset system will again, make sure the tabs and indicators are synchronized
in the tabs up position, and will turn off all LED’s and enter the standby mode which
consumes power at only 5 MA.
-IMPORTANT-
MAIN POWER INPUT MUST BE ON
AT ALL TIMES EXCEPT WHEN THE
BOAT IS POWERED DOWN FOR STORAGE.
The two optional inputs marked “add” and “del” have multiple uses. If system voltage, 12 or
24 volts, is added to the “add” point, the Autoset will retract both tabs. This tab retraction is
the same as pressing the AUTO RET key. Deleting this voltage causes no action but
reapplying the voltage again causes tab retraction. The “del” input is opposite, wherein the
application of voltage causes no action but deleting the applied voltage causes tab retraction.
These two inputs can be used to retract both tabs, at any time, from switches sensing neutral,
reverse, throttle position or boat speed, or manually from a remote pushbutton or switch.
INSTALLING MANUAL SWITHCES
The Autoset II power/logic circuit board and software will accommodate any type of manual
switch to activate the tabs, such as a pair of rocker switches or toggle switches, or four push
buttons or a joystick type control. There must be an electrically separate switch for each tab
and the switch must be, at minimum, a single pole, double throw, momentary, center off,
configuration with a minimum 50 MA current rating.
The standard Lectrotab flat rocker switch assembly or bat handle rocker switch assembly is
available, specially configured electrically, to be used with the Autoset II. STANDARD
LECTROTAB MANUAL ROCKER SWITCH CONTROLS, MODELS SAF AND SAB,
WILL NOT WORK WITH THE AUTOSET II.
Autoset II manual rocker switch type controls:
MODEL DESCRIPTION
SAF-U Flat, dual rocker, switch assembly (2 switches in a panel)
SAB-U Bat handle, dual rocker, switch assembly (2 switches in a panel)
SF-U Single flat rocker switch (switch only)
SB-U Single bat handle rocker switch (switch only)
After completing the installation of the entire Autoset II system and verifying that the keypad
control and the tabs operate properly, proceed as follows:
Flat or bat handle control assemblies, model SAF-U or SAB-U, are installed wherever desired
per the instructions in the Lectrotab installation manual page 4. Any number of these auxiliary

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controls may be connected in parallel. Connect the 4 conductor cable from the control to the
Autoset II power/logic module circuit board, at the lower right side, per the drawing on page 9
of this manual. Single flat or bat handle switches, models SF-U or SB-U, are installed in pairs
wherever desired. Any number of pairs may be connected in parallel. See page 9 of this
manual. If switches other than those supplied by Lectrotab are used, contact Lectrotab
Engineering with switch configuration data for a specific wiring diagram.

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