User manual

3–9
Chapter 3 – Installation and Wiring
LT Series User Manual
3.2.3 Flex Network Communication Cable
The following Flex Network Communication Cables are used to connect the LT
unit to the Flex Network Unit (T-junctions cannot be used).
For detailed information about Flex Network cables or Flex Net-
work units, refer to the Flex Network User Manual.
If the lines cannot be separated, use shielded lines and cre-
ate a ground from the shield line.
If different wires must be placed in the same duct, separate them with an earthed/
grounded divider.
Earth/Ground
Grounded
Separators
Duct
(non-conducting
resin/plastic)
I/O Signal
Lines
Power LinesControl
Lines
3.2.4 I/O Signal Line Cautions
To help prevent noise and interference problems, separate all control, communica-
tion and power lines by placing them in a separate ducts.
Duct for I/O Signal Lines
Duct for Power Lines
Model Length
FN-CABLE2010-31-MS 10m
FN-CABLE2050-31-MS 50m
FN-CABLE2200-31-MS 200m
Duct for Control Lines
• Use noise-reducing external wiring methods to increase overall system
reliability.
• To prevent power surges or noise interference, use ducts to separate 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.