3.4 REVERSE SENSITIVITY ADJUSTMENT
The barrier gate operator is equipped with an Electronic Reversing Device (ERD) which will cause the
barrier arm to reverse direction of travel should an object be encountered during the down cycle. The
amount of force required for the arm to reverse direction is dependent on the setting of the reverse
sensitivity potentiometer. The ERD has no effect on the arm travel should an object be encountered
by the arm in the up direction. Follow the instructions below to adjust the ERD potentiometer.
The ERD will have to be adjusted after the arm has been installed on the barrier operator. Do not
adjust the ERD until after the arm has been installed per section 4.1.
1. Turn the AC power toggle switch to the ON position.
2. Place the control toggle switch to the UP position. The arm should rotate UP.
3. Momentarily press the control toggle switch to the DOWN position. This will cause
the arm to rotate down. CAUTION: Be sure that all persons and vehicles are clear
of the arm before pressing the down toggle switch!
4. While the arm is traveling in the down direction, rotate the reverse potentiometer
clockwise until the reverse LED illuminates. The arm will reverse travel at this time.
5. Rotate the reverse potentiometer 1/8 turn counter clockwise.
6. You may have to repeat the adjustment a few times to find a satisfactory setting.
The ERD in the barrier operator is not intended to replace external reversing devices such as loops,
photo electric eyes, or reversing edges. It is important that these devices be installed according to
the needs and requirements of your particular application.
REVERSE
SENSITIVITY
INCREASEDECREASE
Figure 22
32
To Next Page
Loading...
