Rockwell Automation 1336T Wiring and Grounding Guide, (PWM) AC Drives - Manual (Page 19)

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014 19
Wire/Cable Types Chapter 1
European Style Cable
Cable used in many installations in Europe must conform to Low Voltage
Directive (LVD) 2006/95/EC. Generally recommended are flexible cables with a
bend radius of 20 times the cable diameter for movable cable, and 6 times the
cable diameter for fixed installations, with a screen (shield) of 70…85% coverage.
Insulation for both conductors and the outer sheath is PVC.
The number and color of individual conductors can vary, but the
recommendation is for three phase conductors (customer-preferred colors) and
one ground conductor (green/yellow).
Ölflex Classic 100SY, or Ölflex Classic 110CY, are examples.
Figure 10 - European Style Multi-conductor Cable
Input Power Cables In general, the selection of cable for AC input power to a drive has no special
requirements. Some installations suggest shielded cable to prevent coupling of
noise onto the cable (see
Chapter 2 ), and in some cases shielded cable can be
required to meet noise standards, such as CE for Europe, C-Tick for Australia/
New Zealand, and others. This can be especially true if an input filter is required
to meet a standard. The user manual for the drive has the requirements for
meeting these types of standards. Additionally, individual industries can have
required standards due to environment or experience.
For AC variable frequency drive applications that must satisfy EMC standards
for CE, C-Tick, FCC, or others, we recommend the same type of shielded cable
that is specified for the AC motors be used between the drive and transformer.
Check the individual user manuals or system schematics for specific additional
requirements to meet EMC standards.
R
B W
Stranded Neutral
PVC Outer
Sheath Filler