Side By Side Or Multiple System Installation - Honeywell SYA14 Series Manual

FF-SPS4 Series Installation Manual

Side by Side or Multiple System Installation

To prevent mutual interference or cross talk, pointing emitters in opposite directions may be
necessary in side-by-side or multiple system installations to ensure proper operation.
If two or more FF-SPS4 safety perimeter systems are installed, optical interference may occur
if a receiver receives signals from two emitter devices. This condition may occur due to the
±2° effective aperture angle of the emitter/receiver and the nominal scanning range (up to
75 m [246 ft]). To provide side protection, point the emitters in opposite directions (see figure
2-6).
Figure 2-6 Side by Side Installation
Machine 1 Protection
To ease installation (wiring), emitters may be pointed in the same direction, especially when
multiple systems are perimeter guarding the same side of a machine. To prevent any mutual
interference or crosstalk, select two different emission frequencies of infrared modulated light
by using the two internal switches F1 or F2 (see figure 2-7).
Figure 2-7 Selection of Different Emission Frequencies
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E1
R1
R2
R1
E2
R2
Machine 2 Protection
F2
F1
Honeywell • MICRO SWITCH Sensing and Control 19
Installation
E2
E1