LEESON SM4 Series Flux Vector - Manual (Page 14)

13
Installation
3.2.1.6 NEMA 4X (IP65) Input Terminal Block
For NEMA 4X (IP65) models with integrated EMC filter and/or integrated line disconnect, the input terminal block
is located on the right-hand side of the SM4 inverter in the NEMA 4 X (IP65) enclosure. The single and three phase
models are illustrated herein. Refer to paragraph 3.2.3 Control Terminals for pin out information.
Single Phase (2/PE) Three Phase (3/PE)
With Filter and/or integrated line disconnect With Filter and/or integrated line disconnect
WARNING
Power remains present for up to 3 minutes on power input terminals (L1, L2 and L3)
and output terminals (U, V and W) even when the disconnect switch is in the OFF
position. Remove input power ahead of the drive and wait 3 minutes before removing
the terminal cover.
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.
Motor cable should be low capacitance (core/core <75pF/m, core/shield <150pF/m). Filtered drives 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.
From
Motor
Enclosure / Backplate
360° shield termination to
backplate using saddle clamp
Control and signal cabling
should be separated from
power cables by
a minimum of 300mm
Screened motor cable:
core/core <75pF/M
core/shield <150pF/M
External
Control
Circuits
From
AC Supply