Omron SMARTSTEP A Series - Page 167

Chapter 3
3-27
System Design and Installation
■ Wiring Method
● Single-phase Power Supply Input
NFB
L1
L2
U
V
W
CN2
CN1
R7D-A@
E
M
B
R7M-A@
L1C
L2C
2 m max.
2 m max.
Control panel
Metal plate
AC
power
supply
Metal
duct or
conduit
Surge
absorber
Class D
ground
(Class 3
ground:
100
Ω or
less)
Noise
filter
Brake
power
supply
Noise
filter
Contactor
Ground
plate
Controller
power supply
Ferrite
core
Ferrite
core
Clamp
Ferrite core
Clamp
Ferrite core
Controller
Metal
duct or
conduit
Installation incorporating
Servo Motor
Ferrite
core
Ferrite
core
Note 1. The cable wiring for the ferrite core must be 1.5 turns.
Note 2. Remove the sheath from the cable and ground it directly to the metal plate at the clamps.