Chamberlain AGS 3000 Installation Instructions Manual page 14

Electrical Continued...
BATTERY BACK-UP
BATTERY BACK-UP
pg 14
If the gate operator is already factory
equipped with battery back-up, only the
Right/Left Side switch and the Mode switch
need to be set. The Right/Left switch simply
needs to be set in the same position as the
Right/Left switch on the main control board.
(See page 17 for correctly setting the Right/
Left switch on the control board) The Mode
switch can be set in either the Mode 1 or
Mode 2 position. This choice between Mode1
or Mode 2 depends on how the installer or
end user would like the gate to behave when
power is lost.
Mode 1: Gate will continue to
operate when power is lost. When battery
power gets low, the gate will open and stay
open until power is restored. (Fail Secure)
Mode 2: Gate will open immediately
when power is lost and remain open until
power is restored. (Fail Safe)
If the gate operator did not come from
the factory equipped with battery back-up,
field installation of battery back-up is very
simple. The illustration at left shows addi-
tional wiring required for battery back-up that
is not part of the standard wiring.
First turn power off to the gate
operator.
Disconnect the two grey wires from
terminals 13 and 14 and insulate the ends of
the grey wires.
Secure the charger board to the main
control board by attaching to the 14 screw
terminals on the left side of the control board.
Connect a green wire from terminal 2
to terminal 15 of the control board.
Attach a green wire from terminal 3
or 15 of the control board to the negative relay
coil terminal as shown.
Attach terminal C of the charger
board to the N.O. terminal of either relay 1 or
relay 2.
Attach an orange wire from terminal
D of the charger board to terminal 18 of the
main control board.
Finally, attach a red wire from
terminal A to battery positive and a black wire
from terminal B to battery negative.