Rockwell Automation LPM20 Liquid-Cooled AC Drive with High Performance Drive Control - Manual (Page 33)

Installation/Wiring 1-21
networks. Refer to Reflected Wave in Wiring and Grounding Guidelines for
PWM AC Drives, publication DRIVES-IN001.
Consideration should be given to all of the general specifications dictated by
the environment of the installation, including temperature, flexibility,
moisture characteristics and chemical resistance. In addition, a braided
shield should be included and specified by the cable manufacturer as having
coverage of at least 75%. An additional foil shield can be greatly improve
noise containment.
A good example of recommended cable is Belden® 295xx (xx determines
gauge). This cable has 4 XLPE insulated conductors with a 100% coverage
foil and an 85% coverage copper braided shield (with drain wire)
surrounded by a PVC jacket.
Table 1.E Recommended Shielded Wire
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. These cables are not
recommended.
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.