Rockwell Automation 1336T FORCE to PowerFlex 700S Phase II Drive Conversion Guide - Manual (Page 33)

1336 FORCE™ To PowerFlex® 700S Phase II AC Drive Conversion Guide
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A good example of recommended cable is Belden® 295xx (xx determines gauge). This cable has four (4) XLPE insulated
conductors with a 100% coverage foil and an 85% coverage copper braided shield (with drain wire) surrounded by a PVC
jacket.
Other types of shielded cable are available, but the selection of these types may limit the allowable cable length.
Particularly, some of the newer cables twist 4 conductors of THHN wire and wrap them tightly with a foil shield. This
construction can greatly increase the cable charging current required and reduce the overall drive performance. Unless
specified in the individual distance tables as tested with the drive, these cables are not recommended and their
performance against the lead length limits supplied is not known.
Armored Cable
Cable with continuous aluminum armor is often recommended in drive system applications or specific industries. It offers
most of the advantages of standard shielded cable and also combines considerable mechanical strength and resistance to
moisture. It can be installed in concealed and exposed manners and removes the requirement for conduit (EMT) in the
installation. It can also be directly buried or embedded in concrete.
Because noise containment can be affected by incidental grounding of the armor to building steel (see Chapter 2, “Wire
Types,” of publication DRIVES-IN001…, Wiring and Grounding Guidelines for Pulse Width Modulated (PWM) AC
Drives) when the cable is mounted, it is recommended the armored cable have an overall PVC jacket.
Interlocked armor is acceptable for shorter cable runs, but continuous welded armor is preferred.
Best performance is achieved with 3 spaced ground conductors, but acceptable performance below 200 HP is provided via
a single ground conductor.
Table F Recommended Shielded/Armored Cable
Location Rating/Type Description
Standard (Option 1) 600V, 90 ° C (194 ° F)
XHHW2/RHW-2
Anixter B209500-B209507, Belden 29501-29507, or
equivalent
Four tinned copper conductors with XLPE insulation.
Copper braid/aluminum foil combination shield and tinned copper drain wire.
PVC jacket.
Standard (Option 2) Tray rated 600V, 90
°
C (194
°
F) RHH/RHW-2
Anixter OLF-7xxxxx or equivalent
Three tinned copper conductors with XLPE insulation.
5 mil single helical copper tape (25% overlap min.) with three bare copper grounds in contact
with shield.
PVC jacket.
Class I & II;
Division I & II Tray rated 600V, 90 ° C (194 ° F) RHH/RHW-2
Anixter 7V-7xxxx-3G or equivalent
Three bare copper conductors with XLPE insulation and impervious corrugated continuously
welded aluminum armor.
Black sunlight resistant PVC jacket overall.
Three copper grounds on #10 AWG and smaller.