Rockwell Automation 25B PowerFlex 520-Series Adjustable Frequency AC Drive User Manual User Manual
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Rockwell Automation Publication 520-UM001G-EN-E - September 2014
Chapter 1
Installation/Wiring
•
PowerFlex 520-series drives comply with the EMC requirements of EN
61800-3 when installed according to good EMC practices and the
instructions provided in this document. However, many factors can
influence the EMC compliance of an entire machine or installation, and
compliance of the drive itself does not ensure compliance of all
applications.
•
PowerFlex 520-series drives are not intended to be used on public low-
voltage networks which supply domestic premises. Without additional
mitigation, radio frequency interference is expected if used on such a
network. The installer is responsible for taking measures such as a
supplementary line filter and enclosure (see
) to prevent interference, in addition to the installation
requirements of this document.
•
PowerFlex 520-series drives generate harmonic current emissions on the
AC supply system. When operated on a public low-voltage network it is
the responsibility of the installer or user to ensure that applicable
requirements of the distribution network operator have been met.
Consultation with the network operator and Rockwell Automation may
be necessary.
•
If the optional NEMA 1 kit is not installed, the drive must be installed in
an enclosure with side openings less than 12.5 mm (0.5 in.) and top
openings less than 1.0 mm (0.04 in.) to maintain compliance with the LV
Directive.
•
The motor cable should be kept as short as possible in order to avoid
electromagnetic emission as well as capacitive currents.
•
Use of line filters in ungrounded systems is not recommended.
•
In CE installations, input power must be a Balanced Wye with Center
Ground configuration for EMC compliance.
Installation Requirements Related to EN 61800-5-1 and the Low Voltage Directive
•
600V PowerFlex 520-series drives can only be used on a “center grounded”
supply system for altitudes up to and including 2000 m (6562 ft).
•
When used at altitudes above 2000 m (6562 ft) up to a maximum of
4800 m (15,748 ft), PowerFlex 520-series drives of voltage classes up to
480V may not be powered from a “corner-earthed” supply system in order
to maintain compliance with the CE LV Directive. See
Guidelines for High Altitude on page 18
ATTENTION: NEMA/UL Open Type drives must either be installed in a
supplementary enclosure or equipped with a “NEMA Type 1 Kit” to be
CE compliant with respect to protection against electrical shock.