Rockwell PowerFlex 70, User Manual

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Installation/Wiring 1-7
Table 1.A Recommended Shielded Wire
EMC Compliance
Refer to EMC Instructions on page 1-21 for details.
Cable Trays and Conduit
If cable trays or large conduits are to be used, refer to guidelines
presented in
Wiring and Grounding Guidelines for Pulse Width
Modulated (PWM) AC Drives , publication DRIVES-IN001.
Motor Cable Lengths
Typically, motor lead lengths less than 30 meters (approximately 100
feet) are acceptable. However, if your application dictates longer lengths,
refer to
Wiring and Grounding Guidelines for Pulse Width Modulated
(PWM) AC Drives for details.
Single-Phase Input Power
The PowerFlex 70 drive is typically used with a three-phase input
supply. The drive has been listed by U.L. to operate on single-phase
input power with the following requirement:
•
Output current is derated by 50% of the three-phase ratings identified
in Tables
A.B through A.D .
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.