Omron OMNUC G Series User Manual

4-41
4-3 Wiring Conforming to EMC Directives
System Design
4
 Improving Encoder Cable Noise Resistance
Take the following steps during wiring and installation to improve the encoder's noise resistance.
 Always use the specified Encoder Cables.
 Do not coil cables. If cables are long and are coiled, mutual induction and inductance will increase
and cause malfunctions. Always use cables fully extended.
 When installing noise filters for Encoder Cables, use clamp filters.
 The following table shows the recommended clamp filters.
 Do not place the Encoder Cable with the following cables in the same duct:
Control Cables for brakes, solenoids, clutches, and valves.
Dimensions
Impedance Characteristics
Manufacturer Product name Model Specifications
NEC TOKIN Clamp Filters ESD-SR-250
For cable diameter up to
13 mm
TDK Clamp Filters ZCAT3035-1330
For cable diameter up to
13 mm
31.5
~13
dia.
31.6
38.0
ESD-SR-250
10000
1000
100
10
1
Impedance(Ω)
10 100
Frequency (MHz)
1 1000
ESD-SR-250

Omron OMNUC G Series Specifications

General

Brand	Omron
Model	OMNUC G Series
Category	Servo Drives
Language	English