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Chapter 3 – Installation and Wiring
GLC2400/2500/2600 Series 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.
A problem in the external power supply or a GLC unit failure can lead to opera-
tion failures.
Since these types of failures can affect the entire system, as a preventive measure,
be sure to set up a protection circuit (such as an Emergency Stop, Protection
Network, Interlock, or System Design Circuit) in areas where potential failures
may occur.
Examples of protection circuits that ensure the system’s reliability include the
following:
If different wires must be placed in the same duct, separate them with an earthed/
grounded divider.
To help prevent noise and interference problems, separate all communication lines
from power lines by placing them in a separate duct.
Duct for Communication Lines
Duct for Power Lines
Earth/Ground
Grounded
Separators
Duct
(non-conducting
resin/plastic)
Comm.
Cables
Power
cables
Standard
cables
3.2.4 I/O Signal Line Cautions
3.2.5 Installation Cautins