Omron ACCURAX G5 User Manual page 257

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.
If cables are joined midway, be sure to use connectors. And do not remove more than 50 mm of
the cable insulation. In addition, always use shielded 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.
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
Accurax G5 AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
4-3 Wiring Conforming to EMC Directives
Product name
Clamp filters ESD-SR-250
Clamp filters 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
4-33