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21.1 - MONITORED SAFETY DEVICE TYPES
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” (Learn Bluebus) - Press “OK”. Allow the board
to scan the Bluebus Port.
When complete - test the functionality of each set of
eyes.
5. Fine tune the alignment of each pair of eyes. The more
slowly the lights ash on the units - the better they
are aligned.
Close Direction A/B: Resets timer to close in open position,
reverses gate if closing, no effect if gate is closed or during
opening cycling. Typically used when the photo eyes are on
the outside of the property (gates opening inward.
Close Direction 2 A/B: Resets timer to close in open po-
sition, reverses gate if closing AFTER obstruction is cleared,
pauses the gate on opening cycle - opening resumes after
obstruction clears. Typically used when the photo eyes are on
the inside of the property (gates opening inward).
Open Direction A/B: Delays gate opening from closed position. Stops and reverses gate back closed on open cycle. Typically used
to protect an entrapment point when the gates are opening.
Photocell
CLOSE DIRECTION A
Jumpers
Table 1
CLOSE DIRECTION B
CLOSE DIRECTION 2A
CLOSE DIRECTION 2B
OPEN DIRECTION A
OPEN DIRECTION B
NOT USED
21 - ACCESSORIES AND SENSORS (CONT.)
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