Rockwell Automation 160 AC DRIVE SER B/FRN 5-6.XX - Manual (Page 55)

Appendix B – CE Compliance
B-2
General Instructions for an EMC
Compliant Installation
Refer to Figure B.1.
Shielded Enclosure
D Typical NEMA or IEC metal enclosures are
adequate.
D The ground connection of the shielded
enclosure must be solidly connected to the PE
terminal of the controller. Good conductivity
must be assured – grounding must provide a
low impedance path to high frequency signals.
D All wiring, except input power leads, must use
shielded cable.
D Input power, output power and control wiring
inside the enclosure must be physically
separated.
D Input power, output power and control wiring
outside the enclosure must use separate
shielded cables, or separate conduit.
Cable Clamps
D Use suitable EMC-tested cable clamps only.
D The connection area must be 360 degrees
around the shielded cable.
D The cable clamps also provide strain-relief for
the cable.
D When using conduit, the contact point of
metal entry connections must be free of paint
or non-conductive surfaces and solidly
connected with good conductivity to the
enclosure.
Figure B.1 – Recommended Grounding Configuration
Control Wiring
Line Power
R (L1)
S (L2)
T (L3)
PE
AC
Input Line
Shielded Enclosure
Enclosure Ground Connection
U (T1)
Shielded Motor Cable
to TB3
Control
Cabinet *
to Motor
V (T2)
W (T3)
R (L1)
S (L2)
T (L3)
= EMC Tested Shielded Cable Clamp (or Metal Conduit)
*
TB3
Motor Wiring TB2
L2 L1 L3 BR BR
1 2 3 4 5 6 7 8 9 10 11
T2 TI T3 +
Ground Tab – PE
TB1
FAULT
READY
Line
Filter
DC DC W V U
+ T S R
–
–
When the control circuitry is located outside of the 160 enclosure.