Specifications

App - 9 App - 9
APPENDICES
Holes made in the control panel must be 10cm (3.94 inches) diameter or less. If
the holes are 10cm (3.94 inches) or larger, radio frequency noise may be
emitted. In addition, because radio waves leak through a clearance between the
control panel door and the main unit, reduce the clearance as much as
practicable.
(2) Connection of ground cable
The ground cable should be laid out as follows:
Provide a control panel grounding point near the module. Ground the FG (frame
ground) terminal with the thickest and shortest grounding wire (wire for
grounding) possible (about 30cm (11.81 inches) or less in length). Since the FG
terminal functions to ground the noise generated in the module interior, it is
necessary to ensure the lowest possible impedance. The ground wire must be
wired over a short distance. As the wire is used to relieve the noise, the wire
itself contains a large amount of noise and thus short wiring prevents the wire
from functioning as an antenna.
(3) External power supply
Use a CE-marked product for an external power supply and always ground the
FG terminal.
Use a power cable of 10m or shorter when connecting it to the module power
supply terminal.
(4) CC-Link
Be sure to ground the cable shield that is connected to the CC-Link module
close to the exit of control panel or to any of the CC-Link stations within 30cm
(11.81 inches) from the module or stations.
The CC-Link dedicated cable is a shielded cable.
Remove a part of the jacket as shown below and ground the exposed shield
section to the ground as much as possible.
CC-Link dedicated cable
Shield