4-26
4-3 Wiring Conforming to EMC Directives
System Design
4
4-3
Wiring Conforming to EMC Directives
Conformance to the EMC Directives (EN 55011 Class A Group 1 (EMI) and EN 61000-6-2 (EMS))
can be ensured by wiring under the conditions described below.
These conditions are for conformance of OMNUC G-Series products to the EMC Directives. EMC-
related performance of these products, however, depends on the configuration, wiring, and other
conditions of the equipment in which the products are installed. The EMC conformance of the
system as a whole must be confirmed by the customer.
The following are the requirements for EMC Directive conformance.
The Servo Drive must be installed in a metal case (control panel). (The Servomotor does not,
however, have to be covered with a metal plate.)
Noise filters and surge absorbers must be installed on power supply lines.
Shielded cables must be used for all I/O signal lines and encoder lines. (Use tin-plated, mild steel
wires for the shielding.)
All cables, I/O wiring, and power lines connected to the Servo Drive must have clamp filters
installed.
The shields of all cables must be directly connected to a ground plate.
Wiring Method
R88D-GNA5L-ML2/-GN01L-ML2/-GN02L-ML2/-GN04L-ML2/-GN01H-ML2/-GN02H-ML2/
-GN04H-ML2/-GN08H-ML2/-GN10H-ML2/-GN15H-ML2/-GN20H-ML2/-GN30H-ML2/
-GN50H-ML2
*
1. For models with a single-phase power supply input (R88D-GNA5L-ML2/-GN01L-ML2/-GN02L-
ML2/-GN04L-ML2/-GN01H-ML2/-GN02H-ML2/-GN04H-ML2/-GN08H-ML2), the main circuit
power supply input terminals are L1 and L3.
Ground the motor's frame to the machine ground when the motor is on a movable shaft.
Use a ground plate for the frame ground for each Unit, as shown in the above diagrams, and
ground to a single point.
L1
L2
L3
L1C
L2C
SG
NF
FC
FC
SV
FC
FC
CNA
CN1
CNB
CN2
U
V
W
SM
C
D
A
B
F
E
G
H
TB Controller
Single-phase: 100 VAC
Three-phase: 200 VAC
Single-phase:
100 VAC