Cable Connections
7
2.3.1
Cable Grounding
Except for the power cord, all cables routed through the cord grips should be grounded against the indicator
backplate. Do the following to ground shielded cables:
• Use the lockwashers, clamps, and kep nuts provided in the parts kit to install grounding clamps on the
backplate studs adjacent to cord grips. Install grounding clamps only for cord grips that will be used; do not
tighten nuts.
• Route cables through cord grips and grounding clamps to determine cable lengths required to reach cable
connectors. Mark cables to remove insulation and shield as described below:
•For cables with foil shielding, strip insulation and foil from the cable one half inch (15 mm) past the
grounding clamp (see Figure 2-2). Fold the foil shield back on the cable where the cable passes through the
clamp. Ensure silver (conductive) side of foil is turned outward for contact with the grounding clamp.
•For cables with braided shielding, strip cable insulation and braided shield from a point just past the
grounding clamp. Strip another half inch (15 mm) of insulation
only
to expose the braid where the cable
passes through the clamp (see Figure 2-2).
• For load cell cables, cut the shield wire just past the grounding clamp. Shield wire function is provided by
contact between the cable shield and the grounding clamp.
• Route stripped cables through cord grips and clamps. Ensure shields contact grounding clamps as shown in
Figure 2-2. Tighten grounding clamp nuts.
• Finish installation using cable mounts and ties to secure cables inside of indicator enclosure.
Figure 2-2. Grounding Clamp Attachment for Foil-Shielded and Braided Cabling
A grounding screw is provided on the indicator backplate for connecting a grounding wire (see Section 2.4).
Cord grip
Insulated cable
Foil
(silver side out)
Grounding clamp
Shield wire
(cut)
Length of foil before folding
back on cable insulation
Cut insulation here
for foil-shielded cables
Braid
Cut insulation here
for braided cables
NOTE: Install lockwashers
first, against backplate,
under grounding clamp
Note
Summary of Contents for 590 AG
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