Function - Optex Smart Line Series Installation Instructions Manual

3-3 FUNCTION

1 4 CHANNEL BEAM FREQUENCY SELECTOR
The 4 channel beam frequency selector can be used to avoid unwanted crosstalk that can occur when using multiple photo beams for long
distance or beam stacking applications.
Transmitter
ON
a) Double stacked protection
Transmitter A
1
3
Transmitter B
Since Receiver B may receive the infrared beam from Transmitter
A, select the frequencies as shown in the figure above.
(In the figure, each number in the square indicate a channel numbers.)
c) Double stacked long distance protection
Transmitter
1
Transmitter
3
Note>>
More than double stacked application is not possible.
If interference occurs as shown below, use the beam power control selector to reduce beam [A] to less than the specified distance.
A
Receiver
ON
1 2 3 1 2 3 4 5 6 7
Receiver A
1
3
Receiver B
Receiver Receiver
1
1
Receiver Receiver
3
3
B
ON ON
ON
Channel 1 Channel 2 Channel 3
b) Long distance protection
Transmitter A Receiver A
1 1
Since Receiver C may receive the infrared beam from Transmitter
A, select their frequencies as shown in the figure above.
Transmitter
1
Transmitter
3
Caution
D
C
-11-
SL-QDM
SL-QDP
ON
Channel 4
Receiver B Transmitter B Transmitter C
1 1 3
Transmitter
2
Transmitter
4
Lower the beam power control
selector of transmitter A by one level.
(Refer to 3-2 on page 10.)
Check that the light receiving level
of receiver B is Good or better
without blocking light for both upper
and lower units.
Receiver C
3
Receiver
2
Receiver
4