Rockwell Automation 20D PowerFlex 700S Drive Ph I Control, Frames 1...11 User Manual
Page 21
Installation/Wiring
1-7
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.
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.
Table 1.B Recommended Shielded Wire
EMC Compliance
Cable Trays and Conduit
If cable trays or large conduits are to be used, refer to guidelines presented
in the Wiring and Grounding Guidelines for PWM AC Drives.
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.
!
ATTENTION: To avoid a possible shock hazard caused by
induced voltages, unused wires in the conduit must be grounded
at both ends. For the same reason, if a drive sharing a conduit is
being serviced or installed, all drives using this conduit should be
disabled. This will help minimize the possible shock hazard from
“cross coupled” motor leads.