Omron E3NW-CCL, User Manual

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12 E3NW-CCL CC-Link Digital Sensor Communications Unit User’s Manual (E431)
Precautions for Correct Use
• Install the Unit properly as shown in this manual. Not doing so may result in a failure of the Unit.
• Do not install the Digital Sensor Communications Unit in locations subject to the following conditions:
• Locations subject to direct sunlight
• Locations subject to temperatures or humidity outside the range specified in the specifications
• Locations subject to condensation as the result of severe changes in temperature
• Locations subject to corrosive or flammable gases
• Locations subject to dust (especially iron dust) or salts
• Locations subject to exposure to water, acid, oil, or chemicals
• Locations subject to shock or vibration
• When you wire the power supply cable, always connect the frame ground (FG).
• Be sure to observe the voltage specifications when performing wiring between communications path
and power supply, or at I/O crossovers. Wrong wiring may cause a failure of the Unit.
• Wire the Unit properly as indicated in this manual.
• Use the correct wiring parts to perform wiring.
• Take appropriate and sufficient countermeasures when using the Unit in the following locations:
• Locations subject to static electricity or other forms of noise
• Locations subject to strong electromagnetic fields
• Locations subject to possible exposure to radioactivity
• Locations close to power supplies
• Do not drop the Digital Sensor Communications Unit or expose it to any excessive vibration or shock.
Doing so may result in damage to the Digital Sensor Communications Unit or malfunction.
• The Digital Sensor Communications Unit provides power to the connected Sensors. Therefore, the
operation of the Sensors may become unstable if there are abnormalities in the power supply, such
as a drop in the power supply voltage at startup. If Sensor operation is unstable, check the voltage
specifications and wiring, and then cycle the power supply.