5-5
Control Panel Installation
To ensure system reliability and safety, the system must be designed and configured according to the
installation environment (temperature, humidity, vibration, shock, corrosive gases, overcurrent, noise,
etc.).
5-5-1
Temperature
Panels have been reduced in size due to space-saving and miniaturization in devices and systems,
and the temperature inside the panel may be at least 10 to 15°C higher than outside the panel. Imple-
ment the following measures against overheating at the installation site and in the panel, and allow a
sufficient margin for the temperature before use.
High Temperatures
Use the following cooling methods as required, taking into account the ambient temperature and the
amount of heating inside the panel.
l
Natural Cooling
• Natural cooling relies on natural ventilation through slits in the panel, rather than using cooling
devices such as fans or coolers. When using this method, observe the following points.
• Do not install the Controller at the top of the panel, where hot air tends to stagnate.
• To provide ventilation space above and below the Controller, leave sufficient distance from other
devices, wiring ducts, etc.
• Do not mount the Units in the wrong direction (e.g., vertically or upside down). Doing so may
cause abnormal heating in the Controller.
• Do not install the Controller directly above any heat-generating equipment, such as heaters,
transformers, and devices with high resistance.
• Do not install the Controller in a location exposed to direct sunlight.
Natural Cooling
Controller
Controller
5 Installation and Wiring
5-83
NX-series NX1P2 CPU Unit Hardware User’s Manual (W578)
5-5 Control Panel Installation
5
5-5-1 Temperature
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