Loop Info-Q-2-16
11
SECTION 3 - TYPICAL LOOP LAYOUT EXAMPLES
Slide Gates
Reverse
Loop
Gate T
rack
“Dead Zone”
Underground Loop
Wire
Reverse
Loop
Optional
Automatic
Exit Loop
Loop Lead-In Cable
Loop Lead-In Wire
Lead-In Wire
Reverse Loops
•
Minimum loop size is 18 in. x 48 in. (Pages 3 and 4)
DoorKing preformed loops are 4 ft x 8 ft. (Page 10)
•
Loops must be the same size, same number of turns and
same distance away from the gate. (Page 6)
•
Loops must be wound in the same direction to create a
“Dead Zone”. (Page 5)
•
Loops must be wired in series. (Page 6)
•
Loops must be far enough away from gate to avoid gate
movement interference. (Page 7)
•
Loops should to be far enough away from the exit loop to
avoid any “cross-talk” or on a different loop detector
frequency if detection fields overlap. (Page 7)
Automatic Exit Loop
•
Install a separate loop detector.
•
Minimum loop size is 18 in. x 48 in. (Pages 3 and 4)
DoorKing preformed loops are 4 ft x 8 ft. (Page 10)
•
Normally located 20-100 feet away from the gate so
that the gate is open or opening as you drive up to it.
Typically a loop lead-in cable will need to be installed.
(Pages 2 and 6)
•
Loop should to be far enough away from the reverse
loop to avoid any “cross-talk” or on a different loop
detector frequency if detection fields overlap.
(Page
7)
Loop Lead-Ins
•
Wire loop lead-in should be twisted 6 turns per foot. (Pages 3 and 6)
•
Use wire loop lead-ins up to 100 ft. away from operator. (Page 2)
•
Use cable loop lead-in farther than 10 ft. away from operator if required. (Pages 2 and 6)
•
All wire connections must be soldered between underground loop wire and
loop lead-ins. (Page 6)
•
Series wired loop lead-ins should each be run to the operator before
connecting them together for easy maintenance. (Page 6)
Every slide loop installation is unique and may have specific problems that are not fully explained in this manual. DoorKing
highly recommends that the loop system is installed by a professional installer who understands loop systems and can foresee
any problems that might occur for your specific installation.
Slide gates require the use of two reversing loops wired in series to a single loop detector for maximum vehicular protection. Be
sure that the two reverse loops are properly phased so that the gate can slide through the “dead zone”. The optional automatic
exit loop requires a second loop detector.
Summary of Contents for 9409 Dual Channel
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