Chamberlain SL 1000-B3 - Manual (Page 13)

Rev E Doc 01-20201 10 of 33
PART 2
MASTER/SLAVE LAYOUTS AND WIRING
A. PHOTO-SENSOR INSTALLATION FOR BIPARTING GATE CONFIGURATION
BIPARTING SLIDE GATES
Figure 6. Biparting Slide Gate Photo-Sensor Layout.
WARNING
Buy only UL-approved photo-sensors made for use with vehicular gate
operators or system. Otherwise, safe gate operation may be compromised.
IMPORTANT NOTE: The installation shown in Figure 6 above is a suggested layout using emitters
and receivers. Any UL-approved photo-sensors are acceptable, but they must cover the entire area
of gate travel to be effective.
Install photo-sensors in three Coverage Areas as shown in Figure 6.
1. Coverage Area A - Inside-Open Coverage:
Install two photo-sensors: Inside the fence line, from the gate operators to the gate fully open
positions.
2. Coverage Area B - Inside-Closed Coverage:
Install one photo-sensor: Inside the fince line, from the Master gate operator to the Slave gate
operator.
3. Coverage Area C - Outside-Closed Coverage:
Install one photo-sensor: Outside the fence line, from one fence edge to the other.
4. Connect the photo-sensors to whichever unit is most convenient. For wiring instructions,
see Section C, Connecting Input Wiring, below.