10
3.
The GREEN wire to the GROUND wire.
NOTE: The Tower control board comes equipped with a built-in surge
protector which MAY prevent damage to the controller board in the
event of a nearby lightning strike or a surge in the power lines. For the
surge protector to function, and as a general precaution, the operator
must be properly grounded. The third wire for the ground must be
installed .
ADDITIONAL LIGHTNING PROTECTION
For those areas where a high probability of ground lightning strikes
exists (Florida, Georgia, etc.), additional lightning protection should be
installed in the Tower. Although it may not be possible to protect
against all strikes, additional protection will substantially reduce the
occurrence of lightning damage. Allstar’s lightning data indicates that
the most strikes enter the Tower through the power lines. Effective
protection requires that the surge current from the lightning strike be
shunted to ground. This must be done without raising the potential of
the circuitry in the Tower, with respect to ground, to the levels that will
damage the solid state circuitry. Lightning strikes generate enormous
currents for very short periods of time. Unfortunately, the period of
time is long enough to damage solid state components and many times,
other components. The key to success is a very low resistance path
from the surge protector to ground for these currents in addition to a
surge protector that will act fast enough to protect the solid state
circuitry. Several manufacturers offer suitable surge protectors.
ACCESSORY EQUIPMENT HOOK-UP
NOTE: Before continuing review the PRE-INSTALLATION
NOTES and the GATE SYSTEM DESIGN NOTES &
PARAMETERS on pages 17 and 18 with respect to the
application and likelihood of pedestrian traffic.
Figure 10: Terminal Strip Location
103697
W A R N I N G !
TO REDUCE THE RISK OF DAMAGE DUE TO
LIGHTNING, ENSURE A SOLID GROUND FROM THE
TOWER GROUND WIRE IN THE SERVICE ENTRANCE
2 x 4 HANDY BOX TO THE ELECTRICAL SERVICE
GROUND OR TO A EARTH GROUND STAKE NEAR
THE TOWER
IMPROPER WIRING COULD CAUSE
ELECTROCUTION OR DAMAGE TO CIRCUITRY.
FOLLOW LOCAL BUILDING AND ELECTRICAL
CODES.
W A R N I N G !
C
: INSTALLING THE OPERATOR
