Omron R88D-KTA5L User Manual page 319

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 cores.
 The following table shows the recommended clamp cores.
Manufacturer
NEC TOKIN
TDK
 Do not place the encoder cable with the following cables in the same duct.
Control cables for brakes, solenoids, clutches, and valves.
External Dimensions
ESD-SR-250
to φ13
31.5
Impedance Characteristics
ESD-SR-250
10000
1000
100
10
1
1
Refer to the following sections for the dimensions and impedance characteristics of the
ZCAT3035-1330: "External Dimensions"(P.4-46) and "Impedance Characteristics"(P.4-47).
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
4-3 Wiring Conforming to EMC Directives
Product name
Clamp core ESD-SR-250
Clamp core ZCAT3035-1330
38.0
10 100
Frequency (MHz)
Model Specifications
For cable dia. up to 13 mm
For cable dia. up to 13 mm
1000
4
4-50