Omron NA5-12W series, Руководство пользователя по оборудованию

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3 Installation and Wiring
NA-series Programmable Terminal Hardware User’s Manual (V117)
3-5
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trol Pan
el In
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tion
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5-5 Electrical Envir
onment
When installing or wiring devices, make sure that there will be no danger to people and that noise will
not interfere with electrical signals.
Install the NA Unit as far away as possible from high-voltage (600 V or higher) and power devices to
ensure safe operation and maintenance.
Wiring, and noise countermeasures in particular, must be based mostly on experience, and it is neces-
sary to closely manage wiring based on information in the manuals.

Wiring Routes
Each of the following combinations includes different signal types, properties, or levels. They will
cause the signal-to-noise ratio to drop due to factors such as electrical induction. As a general rule
when wiring, either use separate cables or separate wiring routes for these items. Future mainte-
nance operations and changes to the system will also be made easier by carefully organizing the
wiring from the start.
• Power lines and signal lines
• Input signals and output signals
• Analog signals and digital signals
• High-level signals and low-level signals
• Communications lines and power lines
• DC signals and AC signals
• High-frequency devices (such as Inverters) and signal lines (communications)
3-5-5 Electrical Environment
Installation Locations for NA Unit
External Wiring
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
NA Unit
NA Unit