Rockwell Automation 20D PowerFlex 700H and 700S Frame 9...14 Drives - Manual (Page 23)

Rockwell Automation Publication PFLEX-IN006E-EN-P - July 2013 23
General Installation Information Chapter 1
Motor Considerations
Due to the operational characteristics of AC variable frequency drives, motors
with inverter grade insulation systems designed to meet or exceed NEMA MG1
Part 31.40.4.2 standards for resistance to spikes of 1600 volts are recommended.
Guidelines must be followed when using non-inverter grade motors to avoid
premature motor failures. Refer to Wiring and Grounding Guidelines for Pulse
Width Modulated (PWM) AC Drives, publication DRIVES-IN001 for
recommendations.
Cable Trays and Conduit
If cable trays or large conduits are to be used, see guidelines presented in the
Wiring and Grounding Guidelines for Pulse Width Modulated (PWM) AC
Drives
, publication DRIVES-IN001 .
EMC Instructions CE Conformity
Conformity with the Low Voltage (LV) Directive and Electromagnetic
Compatibility (EMC) Directive has been demonstrated using harmonized
European Norm (EN) standards published in the Official Journal of the
European Communities. PowerFlex Drives comply with the EN standards listed
below when installed according to this manual.
CE Declarations of Conformity are available online at:
http://www.ab.com/certification/ce/docs.
Low Voltage Directive (2006/95/EC)
• EN 61800-5-1 Adjustable speed electrical power drive systems – Part 5-1:
Safety requirements – Electrical, thermal and energy.
EMC Directive (2004/108/EC)
• EN 61800-3 Adjustable speed electrical power drive systems – Part 3:
EMC product standard including specific test methods.
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.