Rockwell Automation 21G PowerFlex 750-Series AC Drives - Manual (Page 14)

14 Rockwell Automation Publication 750-IN001N-EN-P - April 2014
PowerFlex 750-Series AC Drives
• PowerFlex 750-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.
Installation Requirements Related to EN 61800-5-1 and the Low Voltage Directive
Frame 1 Drives:
• Voltage classes up to 480V PowerFlex 750-Series Frame 1 drives can only
be used on a “center grounded” supply system for altitudes up to and
including 2000 m (6562 ft).
Frame 2 and Larger Drives:
• Voltage classes up to 690V PowerFlex 750-Series Frame 2 and larger drives
are compliant with the CE LV Directive when used on a “corner-earthed”
supply system as well as all other common supply systems 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 750-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. Altitude derating
curves are provided in the PowerFlex 750-Series AC Drives Technical
Data, publication
750-TD001 .
ATTENTION: PowerFlex 750-Series drives produce DC current in the protective
earthing conductor which may reduce the ability of RCD’s (residual current-
operated protective devices) or RCM’s (residual current-operated monitoring
devices) of type A or AC to provide protection for other equipment in the
installation. Where an RCD or RCM is used for protection in case of direct or
indirect contact, only an RCD or RCM of Type B is allowed on the supply side of
this product.