POWER
INSTALLING THE EARTH GROUND
An earth ground refers to the grounding rod and
accompanying equipment ground which need
to be installed to safeguard against potential
electrical shock and damage to personnel and
equipment.
HySecurity recommends grounding the operator
with a separate earth ground rod to shield the
operator against electromagnetism and other
electrical signals that may cause erratic operation
with or damage to the Smart DC Controller.
For earth grounding requirements, refer to the
National Fire Protection Association (NFPA)
780 -
Standard for the Installation of Lightning
Protection Systems
. Highlights of the standard
include.
The ground rod is a solid copper rod: minimum
requirements:
5
/
8
(16mm) diameter and 10 feet
(3m) in length.
The ground rod is driven into the earth (refer
to local codes for proper depth requirements).
The ground rod is electrically bonded to the
chassis with a single length of un-spliced 6 AWG
copper wire less than 3 feet (91cm) long.
Local jurisdictions may impose additional
requirements above the NEC and NFPA
780. Consult the local codes and regulations
regarding requirements in your area.
DANGER
The potential for lightning discharge exists with
all gates, fences and gate operators. National
Electric Code (NEC) requires a separate earth
ground in addition to the required equipment
ground.
NOTICE
If you do not ground the operator with a
separate earth ground rod, you risk voiding
the Limited Warranty.
Take the following steps to comply with NEC and
NFPA 780 standards:
1.
Install a grounding rod per local building
codes. See Figure 21.
2.
Attach a large earth ground wire (6 AWG) from
the grounding rod to the lug nut on the base
of the chassis.
New site:
Run the 6 AWG wire through the
concrete base and into the cutout on the
chassis base.
Existing site:
Run the 6 AWG wire beneath
the rear cover.
Properly grounding the gate operator is critical
to gate operator performance and the life of its
electrical components. Use suf
fi
cient wire size
during installation. Refer to "Wiring 115VAC
Power" on page 32 or "Wiring 208/230VAC
Power" on page 33.
Figure 21. Install Earth Ground
Consult
local
codes for
proper
depth.
ϯŌ
Ground wire
and lug nut
Lug
Nut
MX4505 Rev. E ©2020
30
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