Controlled Products Systems Group 6002-080 - Manual (Page 24)

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6002-065-M-6-08
3.4 Inherent Entrapment Sensing Adjustment
3.3 Limit Sensor Adjustments
This vehicular gate operator is equipped with an inherent adjustable reversing sensor (Type A) that is used
as the primary entrapment sensing system. The gate will reverse upon sensing an obstruction in either the
opening or closing gate cycle and will cause the gate operator to reverse direction should an obstruction be
encountered. For the reverse system to function correctly, the gate must be properly installed and work
freely in both directions. A good set of roller bearing hinges is essential for proper swing gate operation.
The ideal adjustment will allow the operator to move the gate through its entire travel cycle without
reversing, but will reverse upon contact with an obstruction with no more than 40 Lbs of force. This force
can be measured with a gate scale, DoorKing P/N 2600-225.
The limit sensors on the actuator can be adjusted to control the travel of the gate and to precisely set the full open and full
closed position of the gate. This feature is especially useful in applications where the gate opens partially, such as on a
curved driveway. Power to the circuit board must be ON when adjusting the limit switches.
Secondary
Primary
Min Max
3.5 Shutdown Conditions
Under various entrapment conditions the operator will assume either a soft or hard (alarm) shutdown. To determine what
type of reset action is required, you will need to understand how the different entrapment conditions affect the gate
operator.
This occurs in various situations where the inherent or secondary entrapment protection devices have been activated.
In a soft shutdown condition, the operator will not respond to any input that was present when the entrapment
protection device sensed an obstruction. If the gate stops at the open position, the operator will not respond to the
automatic close timer.
NOTE: In some systems, the time clock input comes from the telephone entry system relay. This same relay may also
provide open commands for a card reader, MicroPLUS transmitters and the visitor telephone entry. If so, these devices
will also be disabled in a soft shutdown condition.
• Example 1 - A time clock keys the gate open in the morning and an entrapment protection device senses
an obstruction prior to the gate reaching the full open position. If the entrapment is sensed by the inherent
system, the gate will reverse and run back to the closed position. The time clock input is still present, but
the gate will not re-open.
Soft Shutdown
Slow Down
limit nut
Manually move the gate to the desired
open or closed position. Loosen the
limit nuts and slowly slide the limit
assembly until the
LIMIT LED on the
circuit board
lights up.
Tighten the limit nuts,
re-lock actuator arm with
key and test the gate stopping
positions. Repeat if necessary.
Re-install the actuator cover. Adjust the
Secondary actuator limit sensors if dual
actuators have been installed.
With actuator cover removed, manually
un-lock actuator arm with allen wrench. A
A
B
C
D
B
Limit Assemb
ly
Limit
Assemb
ly
B
OPE
N
O P
E N