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Chapter 3. Installation
Installation location
Install this device as specified in Operating conditions (p.14-5) and in a location
that meets the following criteria:
• Common mode voltage of all I/O except for the supply power and relay contact outputs:
voltage to ground of 30 V
RMS
max., 42.4 V peak max., and 60 V DC max.
• Neither high nor low temperature/humidity
• No sulfide gas or other corrosive gases
• Little dust or soot
• Protected from direct sunlight, wind, and rain
• Little mechanical vibration or shock
• Not close to high voltage lines, welding machines, or other sources of electrical
noise
• At least 15 meters away from the high voltage ignition device for a boiler, etc.
• No strong magnetic fields
• No flammable liquids or gases
• Indoors
Mounting precautions
Pay attention to the following when mounting this device:
• Do not block the ventilation holes.
• When using fans or cooling equipment, make sure the air does not directly blow
on this device.
• Mount this device horizontally with the back not raised or lowered more than 10°.
• Use a rigid panel whose thickness is no more than 8 mm.
• Do not tighten screws too tightly because the case may be deformed.
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