Installation Recommendations For Emc Compliance -14 - Lenze SMV Series Operating Instructions Manual

Installation
3.2.1.5 Installation Recommendations for EMC Compliance
For compliance with EN 61800-3 or other EMC standards, motor cables, line cables and control or
communications cables must be shielded with each shield/screen clamped to the drive chassis. This clamp
is typically located at the conduit mounting plate.
The EMC requirements apply to the final installation in its entirety, not to the individual components used.
Because every installation is different, the recommended installation should follow these guidelines as
a minimum. Additional equipment (such as ferrite core absorbers on power conductors) or alternative
practices may be required to meet conformance in some installations.
Motor cable should be
low capacitance (core/
core <75pF/m, core/shield
<150pF/m). Filtered drives
EN
can meet the class A limits
of EN 55011 and EN 61800-3
Category 2 with this type of
motor cable up to 10 meters.
NOTE: Refer to Appendix
A for recommended cable
lengths. Any external
line filter should have its
chassis connected to the
drive chassis by mounting
hardware or with the
shortest possible wire or
braid.
14
External
Control
Circuits
Control and signal cabling
should be separated from
power cables by
a minimum of 300mm
360° shield termination to
backplate using saddle clamp
From
Motor
Enclosure / Backplate
Screened motor cable:
core/core <75pF/M
core/shield <150pF/M
From
AC Supply
EDBSV571 EN 1.0