Product Manual
Concentric International
1901 Bell Ave., Suite 18, Des Moines, IA 50315
www.concentricintl.com
Rev. 20161130
Page 4 of 13
LA Dual Control
8. Press and hold the number 3 button for 5 seconds.
a. The LED will flash to indicate the setting has been learned and stored.
Operation Notes:
The control unit will remember the preset positions after its power is removed.
Programming a new preset position will overwrite any previous preset position stored
for that combination of actuator and button number.
The presets can be in any position throughout the stroke of the actuator. They do not
need to be in order along the travel of the actuator stroke. They do not need to be
programmed in any certain order.
The 3 optional input wires (blue – preset #1, green – preset #2, white – preset #3) are
ground inputs. When a ground is applied to any of these wires, the actuator will go to
the specified preset position. Momentary, normally-open switches should be used
with these inputs. Movement of the actuator begins after the switch is closed and
then opened.
The blue, green, and white wires cannot be used to program preset positions – user
must use the wired 3-button switch to program preset positions.
The blue, green, and white wires cannot be used in pairs (blue & green -or- green &
white) to extend or retract the actuator – user must use the wired 3-button switch to
extend or retract the actuator.
Proper wiring is critical to the correct operation of this unit. Inspect all wiring to be
certain of proper connections, good quality ground, and proper fusing. Also ch eck
wire routing, keeping wires away from potential damage such as moving parts.
How the LA-Dual-Control functions when it loses connection to one of the two
actuators when operating in a dual actuator mode:
o When one of the two actuators’ motor is disconne cted, the other actuator slows
down in an attempt to synchronize positions, but continues to its target
position.
o When one of the two actuators’ potentiometer is disconnected, it attempts a
short move when commanded, but then stops abruptly, as its position cannot
be determined. The other actuator slows down in an attempt to synchronize
positions, but continues to its target position.
o The controller uses a form of pulse width modulation in controlling the speed of
the actuators.
5 seconds