Owner's Manual

18
until it disengages the slots on the limit nut. Then, rotate the
open limit nut until it engages the leaf on the open limit switch
when approached from the center of the threads on the limit nut
threaded shaft. Listen carefully for the "snap action" of the limit
switch. It may be necessary to try this operation several times
until the "click" of the limit switch is clearly identified. Once
the exact position of the click is noted, rotate the limit nut about
two or three slots on the limit nut (each slot on the limit nut
equals approximately 1" of gate travel) more in the direction to
the back of the operator away from the gate. This will give the
operator time to stop the gate after the limit switch has been
activated and prevent banging of the gate on its mechanical stop.
Now, manually push the gate to the desired closed position. The
closed limit switch and limit nut will be the closest to the front
of the operator. Repeat the limit nut adjustment described
previously. In this case, the limit nut will be rotated towards the
front of the operator. Again, after carefully noting the position
of the click on the engagement of the limit switch, rotate the
limit nut two or three slots on the nut toward the front of the
operator toward the gate.
When the setting of the limit nuts has been completed, manually
move the gate to the center of its travel.
The final setting of the limit nuts will be accomplished after the
operator has been powered up.
SETTING THE LIMIT SWITCHES FOR RIGHT HAND
OPERATION
The wiring must be configured for right hand operation as
described on Page 15. Follow the same procedure as listed
above, EXCEPT NOTE that the Open and Close limit switches
are REVERSED.
SETTING THE OBSTRUCTION DETECTION
SENSITIVITY
The
operator is equipped with an obstruction
detection circuit which will detect MOST
obstructions in the gate's path. See Figure
19. The sensitivity can be adjusted with the
rightmost trimmer potentiometer on the
controller board labeled, "OVERLOAD".
Turning the potentiometer clockwise
decreases the sensitivity and turning it
counterclockwise increases the sensitivity.
The
operator is
LABEL EXPLANATION
HOLD OPEN Hold Open Input is active
OPEN RADIO Radio Open Input is active
OPEN PULSE Pulse Open Input is active
CLOSE Close Input is active
STOP Stop Input is active
ALT. Alternate Input is active
GATE OPEN Open Limit Switch is active
GATE CLOSED Close Limit Switch is active
OPENING Motor is being commanded to open the
gate
CLOSING Motor is being commanded to close the
gate
OVERLOAD Motor Overload Circuit is being tripped
LOCK ACTION Operator Lock is being triggered.
107034
Figure 20: Control Board Indicator L.E.D.’s
D
: STARTING THE OPERATOR
WARNING!
RISK OF ENTRAPMENT
OVERLOAD SENSITIVITY HAS NOT BEEN SET.
DO NOT ALLOW ANYONE NEAR THE GATE AND DO NOT
LEAVE GATE AND LEADER UNATTENDED UNTIL
FOLLOWING PROCEDURES HAVE BEEN COMPLETED.
USE CAUTION DURING THIS FINAL ADJUSTMENT
PERIOD.
FINAL SETTING OF THE LIMIT SWITCHES
If the gate stops short of being fully open or closed or if it bangs against
the end stops, turn off the main power and reset the appropriate limit
switch nut. Each slot on the limit nuts represents about 1" of gate travel.
The nuts should only have to be turned one or two slots in either direction
to fine tune the gate's limits of travel. When final adjustment has been
completed, insure that the detent plate is firmly seated in the slots.
Review Figure 18, Page 16.