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Flex Network User Manual
When you are unable to separate the cables as shown above, be sure to use shielded
cable and create a ground from the shield line.
If the wires must be placed in the same duct, separate them via an earthed/
grounded divider.
Earth/
Ground
Grounded
Separators
Duct
(non-conducting
resin/plastic)
Duct for Power Lines
Com. Cables
Power
cables
S t a n d a r d
cables
3.2.4 General Cautions
Separating all communication lines from power lines by placing them in a sepa-
rate duct will help to prevent problems from noise and interference.
Use the following wiring type and size guidelines when creating external wiring
terminals.
Approved wire: UL1015 or UL1007 (except for the data transfer cable).
Smallest
Largest
Digital Input
0.5(AWG20)
1.25(AWG18)
Digital Output
0.5(AWG20)
1.25(AWG18)
Data Transfer
(Use separate designated type)
Power
1.25(AWG18)
1.25(AWG18)
GND
1.25(AWG18)
1.25(AWG18)
Wiring Sizes (mm
2
)
Connection Type
Duct for Regular
Control Lines
Duct for Communication
Lines
• Use noise-reducing external wiring methods to increase overall sys-
tem reliability.
• To prevent power surges or noise interference, use ducts to sepa-
rate all DC I/O or current circuit wires from communication cables.
• To prevent malfunctions due to noise, communication cables must
be wired separately from high-frequency lines and power lines such
as high-voltage lines, high-current lines, and inverters.
