ACCESSORY CONNECTIONS
These terminals will provide battery backed power to 24 VDC
devices and are located at the bottom of the electronic control
board at J4 terminals 1 and 2. Terminal 1 is 24 VDC (+) and
number 2 is 0 VDC (-). Peripheral CLASS 2 low voltage devices
that require 24 VDC power maybe connected here (500 ma.
maximum). EXAMPLE: Vehicle detector, radio receiver.
RELAY OUTPUT K1:
For class 1 and 2 installations, do not
disconnect siren. S1-6 must be on and S1-8 must be off. Do not
change – 6.30 and earlier versions.
BATTERY INSTALLATION
HOOKING UP BATTERY LEADS: Always hookup and turn on AC
power before installing batteries.
After turning on AC power,
install two NEW, fully charged 12 volt DC batteries on shelf next
to motor. Connect red lead from operator to the positive (RED +)
terminal of one battery and black lead from the operator to the
(BLACK-) terminal of the OTHER battery. Place a jumper between
the remaining terminals of each battery if one is not already in
place. See diagram at right.
MASTER/SECOND WIRING
Master/second wire hook up:
STEP 1:
In a master/second configuration, either unit can be
the master. Choose one unit to be the master and then direct all
control wiring to it (also install vehicle detectors and radio
receivers this unit)
STEP 2:
At the MASTER, any input (at J5) with control
(detectors, receivers, keypads, timers, etc.) wires to it must
also be run to the same terminals of the second.
Along with these control wires, both operators MUST share a
common ground connection from chassis to chassis (or from
PCB common to PCB common (Ex: master gate J5 terminal
#12 to second gate J5 terminal #12)
EXAMPLE: If only open and close are used at master then three
wires will run between gates.
More may be needed for
additional functions to be used.
STEP 3:
If it is required that if one gate senses an obstruction,
the other reverses also, then 3 additional wires must be run
between the master
J3
and second
J3
as shown below. These
connections are for transmitting IRD (obstruction signals)
between both units. This will allow the master or second to
inform the other that a closing obstruction has occurred and
for it to reverse and open.
SET
switches on
S2
,
1-8
the same
on both gates.
+
–
+
–
12 VDC Battery
7-10 amp
12 VDC Battery
7-10 amp
Red Lead
Black Lead
Jumper
Failure to install batteries correctly will cause
damage and will not be covered by warranty.
FIGURE 1
10
Open
Close
Common
Master-J5
FIGURE 2
1
2
3
4
5
6
7
8
9 10 11 12
Second-J5
1
2
3
4
5
6
7
8
9
10 11 12
FIGURE 3
RX
GND
TX
RX
GND
TX
IRD - Obstruction Signal Connections
Terminal 1 of Master must go to terminal 4
of Second and terminal 1 of Second must
go to terminal 4 of Master. Terminal 2 of
Master must go to terminal 2 of Second.
Master-J3
Second-J3
1
2
3
4
1
2
3
4
Summary of Contents for LIFTMASTER PROFESSIONAL MSLDCBB
Page 18: ...18 OPERATOR NOTES...
