Omron PROFINET NX-PNC202, Руководство пользователя

Страница: 120 / 282

6 Installation
6 - 26
NX-series PROFINET Coupler Unit User’s Manual (W623)
Observe the following points.
• The coils and contacts in electromagnetic contactors and relays in an external circuit are sources of
noise. Do not install them close to the Profinet IO Device Terminal. Locate them at least 100 mm
away from the Profinet IO Device Terminal.
Observe the following points when wiring the power supply system.
• Separate the Profinet IO Device Terminal power supply from the IO device power supply and install a
noise filter near the power supply feed section.
• Use an isolating transformer to significantly reduce noise between the Profinet IO Device Terminal
and the ground. Install the isolating transformer between a power supply and the noise filter, and do
not ground the secondary coil of the transformer.
Arrangement of Profinet IO Device Terminal and Cables
Wire Layout for the Power Supply System
Example of Recommended Equipment Arrangement
Control panel Control panel High-voltage
power panel
Examples of Equipment Arrangement in Panel with High-voltage Devices
Example of Poor Equipment Arrangement
Control panel Control panel High-voltage
power panel
PROFINET
IO Device
OK
NG
PROFINET
IO Device
Example of Arrangement in Panel
DC I/O
device
AC I/O
device
Terminal block
PROFINET
Coupler Unit
DC Unit
DC Unit
AC Unit AC Unit