Linear Lectrotab Autoset II System, Manual, Page: 3 / 9

3
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.