19
LIMIT ADJUSTMENT PROCEDURE
▲
WARNING: TURN OFF POWER SUPPLY BEFORE
MAKING ANY ADJUSTMENTS.
1. After the operator has been installed and the Barrier Arm
secured in position, rotate the arm to the horizontal position using
manual crank as shown in previous section.
2. Loosen the set screw on the horizontal stop cam and rotate the
cam, (counterclockwise for a
Right Hand
installation and
clockwise for a
Left Hand
installation) until it just actuates the
horizontal limit switch. (See diagram.) Secure this position by
tightening set screw.
HORIZONTAL
STOP CAM
HORIZONTAL
LIMIT SWITCH
VERTICAL
STOP CAM
VERTICAL
LIMIT SWITCH
3. Rotate the Arm to the straight up, vertical position. Loosen the set
screw on the vertical stop cam and rotate the cam, (clockwise for
a
Right Hand
installation and counterclockwise for a
Left Hand
installation) until it just actuates the vertical limit switch. (See
diagram.) Secure this position by tightening set screw.
4. Remove crank pin from timing pulley and replace in storage area
on drive frame.
Note: Be sure drive pin is fully inserted back
into drive frame in order to activate interlock.
5.
Turn on power, then raise and lower barrier arm using the
control switch next to outlet box.
20
▲
WARNING:TURN OFF POWER BEFORE MAKING
ADJUSTMENTS!!!
6. Make minor adjustments to limit cams as required to obtain the
desired “OPEN” and “CLOSED” positions.
MASTER - SLAVE OPERATION
NOTE
: A single unit is considered a MASTER. For MASTER-
SLAVE installation, one unit must be converted to LEFT HAND
operation, as shown on page 16. All units are shipped as
“MASTER” from the factory.
1. Leave jumper on the MASTER operator’s circuit board in the
“OFF” position.
2. Move jumper on SLAVE operator’s circuit board to the “ON”
position.
ON
SLAVE
JUMPER
ON
SLAVE
JUMPER
MASTER
POSITION
(OFF)
SLAVE
POSITION
(ON)
3. Connect terminal #15 of MASTER unit to terminal #5 of SLAVE
unit.
4. Connect terminal #16 of MASTER unit to terminal #6 of SLAVE
unit.
5. Connect terminal #17 of MASTER
unit to terminal #7 of SLAVE
unit.
1
2
3
4
5
6
7
8
9
15
16
17
A
B
1
2
3
4
5
6
7
8
9
15
16
17
A
B
MASTER
TERMINAL
STRIP
