Rice Lake 820i Programmable Indicator/Controller - Panel Mount Enclosure Installation Instructions - Manual (Page 3)

3
Cable Grounding
All cables routed into the panel mount enclosure
should be grounded against the indicator enclosure. 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 enclosure studs adjacent to cord
grips.
Figure 4. Grounding Clamp Attachment for Foil-Shielded
and Braided Cabling
Figure 5. Cable Installation with Grounding Clamp
• Route cables under cabling bar (see Figure 5) and
through 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 half an
inch (15 mm) past the grounding clamp
(see Figure 4). 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.
• 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 under cabling bar
and through the clamps. Ensure shields
c o n t a c t g r o u n d i n g c l a m p s . Ti g h t e n
grounding clamp nuts.
• Use cable ties to secure cables to cabling
bar.
Power Specifications
Line Voltages 115 or 230 VAC
Frequency 50 or 60 Hz
Power Consumption 25W maximum
See the 820i Installation Manual for additional
specifications.
Parts Kit Contents
Table 1 lists the parts kit contents for the panel mount
version of the
820i .
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
Install lockwashers first,
against enclosure, under
grounding clamp
BRAIDED CABLE
FOIL-SHIELDED
CABLE
Grounding clamp
Install lockwashers first,
against enclosure, under
grounding clamp
Cabling bar
Use cable ties to
bind cables to bar
Grounding clamp stud
PN Description
14626 Kep nuts, 8-32NC (5)
54206 Machine screws, 6-32 x 3/8 (2)
15133 Lock washers, No. 8, Type A (5)
71522 Machine screws, 8-32NC x 1/4 (6)
82425 Machine screws, 10-32NF x 1-1/2 (9)
15631 Cable ties (4)
53075 Cable shield ground clamps (5)
77925 Revolution ™ CD (1)
15887 6-position screw terminal for load cell
connection (1 or 2)
76514 6-position screw terminal for J10 (1)
76513 4-position screw terminal for J9 (1)
71344 10-position screw terminals for J5 and J11 (2)
Table 1.Parts Kit Contents