When connected properly and with the sensors aligned
properly, both of the safety sensors’ LEDs will be lit
solid. If the LEDs are fl ashing, this indicates they are
misaligned. If no LEDs are lit check the wiring for
poor connections and/or wrong colored sensor wires
connected to the wrong control board terminals.
Test the safety sensors. Start with the gate from any
position, give a command to run and while the gate is
moving simply obstruct the path of the sensors. The gate
will stop.
NOTE: The control board will automatically learn and
monitor the safety sensor’s confi rming they have been
connected and are functioning. if the sensors are
removed the control board must be reset so that it is no
longer monitoring sensors. To reset the control board:
• Remove Power Supply.
• Remove all Sensor wires from the control board.
• Restore power and wait 30 seconds.
• Press the RESET BUTTON located on the outside of
the control box. The safety sensors are now removed
from the system.
Safety Sensor Connections
THE PROTECTOR SYSTEM
®
SAFETY SENSORS (MODEL 50-220)
Safety Sensors are designed to detect an obstruction
such as a car. This gate operator can have a maximum
of two pairs of safety sensors installed. The sensors
come with two feet of wire leads. Additional 16AWG wire
will be required (not provided).
A typical installation should have safety sensors installed
across the opening of the gate to detect the presence of
a car and across the open side of the gate to keep the
gate from entrapping an individual. The safety sensors
are to be mounted no more than 2" (.6 m) above the
ground. See page 25.
If the sensors are obstructed with the gate in any
stopped position they will not allow the gate to open
or close. While the gate is moving in the open or close
direction and the safety sensors are obstructed, the gate
will immediately stop and once the obstruction has been
cleared, the next user run command will continue the
gate in the same direction.
NOTE: If the TIMER TO CLOSE (TTC) option is enabled
and an obstruction occurs while the gate is closing,
the gate will stop and TTC will be temporarily disabled
until the next user run command is given. If the gate
is fully open and the sensors are obstructed, once the
obstruction is no longer present, the TTC will be enabled
and the gate will close after programmed time.
Connecting the safety sensors to the control box:
1. Disconnect the Power Supply.
2. Connect the RED sensor wires to the “IR+” terminal
and the BLACK sensor wires to the “IR-” terminal.
3. Restore power by plugging in the Power Supply.
YEL
RESET ALARM
JU1
R17
R6
SWITCHIR
++
__
GRN
BRN
SAFETY SENSORS
(
IR
)
Programming 24
Without a properly installed safety reversal system,
persons (particularly small children) could be
SERIOUSLY INJURED or KILLED by a closing gate.
• The gate MUST be installed in a location so that enough
clearance is provided between the gate and adjacent
structures when opening and closing to reduce the risk
of entrapment.
• Care shall be exercised to reduce the risk of nuisance
tripping, such as when a vehicle trips the sensor while
the gate is still moving.
• One or more non-contact sensors shall be located where
the risk of entrapment or obstruction exists, such as the
perimeter reachable by a moving gate or barrier.
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