Controlled Products Systems Group 9050-080 - Manual (Page 36)

3.4 INHERENT REVERSE ADJUSTMENT
This vehicular gate operator is equipped with an inherent (Type A) entrapment sensing system. This
system will sense an obstruction in either the opening or closing gate cycles and will cause the gate
to reverse direction should an obstruction be encountered. For this system to function correctly, the
gate must be properly installed and work freely in both directions. A good set of ball bearing wheels
(or rollers) is essential for proper slide gate operation.
3.4.1 REVERSE
SENSITIVITY ADJUSTMENT
1. Activate the gate operator my momentarily shorting terminal 8 and 12 with a 1-foot piece
of 18 AWG wire. Be sure that the automatic limit adjustment has been completed as
described in section 3.3.
2. While the gate is running, slowly rotate the reverse sensitivity potentiometer clockwise
until the gate reverses travel, then rotate the potentiometer 1/8 turn counter clockwise.
Note: Rotating the sensitivity adjustment clockwise INCREASES the reverse sensitivity.
Rotating this adjustment counter-clockwise DECREASES the reverse sensitivity. NOTE:
After the gate has reversed, the operator will assume a "soft shutdown" making it
necessary to initiate the cycle again by momentarily shorting across terminals 8 and 12
as in step 1.
3. Operate the gate a few times to be sure that it cycles completely.
4. Place an immobile object along the path of the gate so that the gate will strike it while in
the open cycle. The gate must reverse direction after striking the object. If it does not,
increase the reverse sensitivity by turning the potentiometer 1/8 turn clockwise, then
repeat this test. NOTE: After the gate has reversed, the operator will assume a "soft
shutdown" making it necessary to initiate the cycle again by momentarily shorting across
terminals 8 and 12 as in step 1.
5. Place an immobile object along the path of the gate so that the gate will strike it while in
the close cycle. The gate must reverse direction after striking the object. If it does not,
increase the reverse sensitivity by turning the potentiometer 1/8 turn clockwise, then
repeat this test. NOTE: After the gate has reversed, the operator will assume a "soft
shutdown" making it necessary to initiate the cycle again by momentarily shorting across
terminals 8 and 12 as in step 1 to reactivate the automatic close timer.
6. You may have to repeat step 2 several times to find the correct sensitivity adjustment.
DECREASE INCREASE
Figure 32
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