Rockwell Automation 1336F PLUS II User Manual - Firmware 1.xxx-6.xxx - Manual (Page 27)

Installation/Wiring 2–17
Motor Cables
A variety of cable types are acceptable for drive installations. For
many installations, unshielded cable is adequate, provided it can be
separated from sensitive circuits. As an approximate guide, allow a
spacing of 0.3 meters (1 ft.) for every 10 meters (32.8 ft.) of length. In
all cases, long parallel runs must be avoided. Do not use cable with an
insulation thickness less than or equal to 15 mils (0.4 mm/0.015 in.).
The cable should be 4-conductor with the ground lead being con-
nected directly to the drive ground terminal (PE) and the motor frame
ground terminal. See table below.
Unshielded
THHN, THWN or similar wire is acceptable for drive installation in
dry environments provided adequate free air space and/or conduit fill
rates limits are provided. Do not use THHN or similarly coated
wire in wet areas. Any wire chosen must have a minimum insulation
thickness of 15 mils and should not have large variations in insulation
concentricity.
Shielded/Armored Cable
Shielded cable is recommended if sensitive circuits or devices are
connected or mounted to the machinery driven by the motor (see
table).
Recommended Shielded Wire
Conduit
If metal conduit is preferred for cable distribution, the following
guidelines must be followed.
• Drives are normally mounted in cabinets and ground connections
are made at a common ground point in the cabinet. Normal installa-
tion of conduit provides grounded connections to both the motor
frame ground (junction box) and drive cabinet ground. These
ground connections help minimize interference. This is a noise
reduction recommendation only, and does not affect the require-
ments for safety grounding (refer to pages
2–11 and 2–12 ).
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 XLP 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 alu-
minum armor.
• Black sunlight resistant PVC jacket overall.
• Three copper grounds on #10 AWG and smaller.