Chamberlain LiftMaster SL930 User Manual page 16

CONTROL WIRING
BUTTON CONTROL WIRING
One button, two button and three button controls may be
connected individually or together as shown below. Most button
controls have a common "buss bar" which connects the common
terminals of all buttons together so that only one common wire
needs to be run back to the gate operator control board. If this is
not the case, the common terminals of each button may be
connected together with wire.
Connect the common terminal or terminals (COM) of the push
button control to the Common (terminal 6) on the gate operator
control board. Connect the Open button NO terminal of the push
button control to Open (terminal 5) on the gate operator control
board. Connect the Close button NO terminal of the push button
control to Close (terminal 10) on the gate operator control board.
If the stop button has normally closed contacts, connect the Stop
button NC terminal to Stop (terminal 9) and remove the stop
jumper that is on terminals 8 & 9. If the stop button has normally
open contacts, connect the Stop button terminal NO to the NO
Stop (terminal 11) on the gate operator control board.
If more than one push button control is used on one gate
operator, connect wires from the Open, Close and Common in
parallel to the control board. If the stop button has normally
closed, contacts connect the stop buttons in series to the control
board. If the stop buttons have normally open contacts, connect
the stop buttons in parallel to NO Stop (terminal 11) on the
control board.
W I R I N G
Figure 6
16
Stop Jumper
NOTE: Remove stop jumper only if the stop
button has normally closed contacts and
connect stop buttons in series as shown.
If the stop buttons have normally open contacts,
do not remove the stop jumper and connect
stop buttons in parallel to terminal 11 (M/S stop)
and terminal 6 (Common).
Stop Jumper