Rockwell Automation 20L PowerFlex 700L Frame 1X Liquid-Cooled Adjustable Frequency AC Drive - Manual (Page 7)

PowerFlex 700L Frame 1X Drive Installation Instructions – Publication 20L-IN013A-EN-P – June 2009
7
Installation Requirements Related to EN 61800-3 and the EMC Directive
•
The drive must be earthed (grounded) as described in these instructions
(see
General Grounding Requirements on page 18 ).
•
Output power wiring to the motor must employ cable with a braided
shield providing 75% or greater coverage, or the cables must be housed
in metal conduit, or equivalent shielding must be provided. Continuous
shielding must be provided from the drive enclosure to the motor
enclosure. Both ends of the motor cable shield (or conduit) must
terminate with a low-impedance connection to earth. At the drive end of
the motor cable, the cable shield must be connected to the motor PE
terminal on the drive.
•
At the motor end of the motor cable, the cable shield or conduit must
terminate in a shielded connector which must be properly installed in an
earthed motor wiring box attached to the motor. The motor wiring box
cover must be installed and earthed.
•
All control (I/O) and signal wiring to the drive must use cable with a
braided shield providing 75% or greater coverage, or the cables must be
house in metal conduit, or equivalent shielding must be provided. When
shielded cable is used, only the drive end of the cable shield should be
terminated with a low-impedance connection to earth.
•
Motor cabling must be separated from control and signal wiring
wherever possible.
•
Motor cable length must not exceed 5 m (16.4 ft) for compliance with
radio frequency emission limits for compliance with the C3 limits of
EN 61800-3 for I
≤
100 A. Longer motor cables may be used if
compliance with the C3 limits for I > 100 A is acceptable in the
application. Longer motor cables may also be used if a supplementary
EMC line filter is wired between the drive and the power supply.
•
The drive must be powered from an earthed supply system such as a TN
or TT system and the DC Bus Common Mode Caps (PE-B) and Input
Filter Caps (PE-C) jumpers must be installed as described in
Table 7 on
page 22 .