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4-35
4-3 Wiring Conforming to EMC Directives
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
4
System Design
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 roll cables. If cables are long and are rolled, 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.
External Dimensions
Impedance Characteristics
Manufacturer
Product name
Model
Specifications
NEC TOKIN
Clamp filters
ESD-SR-250
For cable dia. up to 13 mm
TDK
Clamp filters
ZCAT3035-1330
For cable dia. up to 13 mm
31.5
to
φ
13
31.6
38.0
ESD-SR-250
10000
1000
100
10
1
Impedance (
Ω
)
10
100
Frequency (MHz)
1
1000
ESD-SR-250
Содержание OMNUC G5 R88D-KN series
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