Nice 3501

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24 - ACCESSORIES AND SENSORS

EXTERNAL ENTRAPMENT PROTECTION

Non-contact and contact sensors must be installed individually or in combination with each other to provide external entrapment protection.

Care should be exercised to reduce the risk of nuisance tripping, such as when a vehicle trips the sensor while the gate is still moving, and 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.

A hardwired contact sensor shall be located and its wiring arranged so that the communication between the sensor and the gate operator is not subjected to

mechanical damage.

A wireless contact sensor such as one that transmits radio frequency (RF) signals to the gate operator for entrapment protection functions shall be located

where the transmission of the signals are not obstructed or impeded by building structures, natural landscaping or similar obstruction. See the 1551 manual

for more information on external entrapment sensors and installation instructions.

DURING INSTALLATION

• DISCONNECT POWER at the control panel before making any electric service power connection.

• Be aware of all moving parts and avoid close proximity to any pinch points.

• Know how to operate the manual release.

• Adjust the unit to use the minimum force required to operate the gate smoothly even during mid-travel reversing.

• Place controls a minimum of 8 feet away from the gate so that the user can see the gate and operate controls but cannot touch the gate or gate operator

while operating the controls.

• Warning signs must be placed on each side of the gate or in high-visibility areas to alert of automatic gate operations.

25.1 - Monitored Safety Device

BlueBus photo-eyes:

The EPMOB photocell is a thru-beam device - consisting of a transmitter (TX) and a receiver (RX) that connects via two (2) wires. Polarity of the wiring is

not important. EPMOBs may be wired in parallel to one another or directly to the board - it is not necessary to make a “home run” to the board with each

EPMOB. Multiple sets of EPMOBs may be used, however each PAIR must be set to an exclusive address by setting the jumpers in the units. What this

means, is that each pair of eyes must have their jumpers set to match each other - but every pair must be set differently from the other pairs. The address

jumpers also determine the functionality of each set of eyes:Open direction or Close direction, etc. (see Table 1).

1. Mount the transmitter and receiver appropriately to a rigid mounting surface. Eyes should be placed appropriately to protect areas of entrapment

according to UL325 guidelines.

2. Set the jumpers in each pair of eyes to match each other.

Ensure that each pair of eyes are set differently. Use the table

below to nd the setting of the jumpers that corresponds to

the functionality desired from each pair of eyes.

3. Connect the EPMOBs to the Bluebus connector of the circuit

board. Polarity of the wiring is not important. Eyes may be

connected in parallel to one another - or directly to the board.

4. LEARN the Bluebus port.

On a 1050 board - Press Functions (1. Learn) - Press “OK”