Omron C-series manual Operating Environment Precautions, Application Precautions

Application Precautions 5

•When the 24-VDC output (service power supply to the PC) is overloaded or short-circuited, the voltage may drop and result in the outputs being turned OFF. As a countermeasure for such problems, external safety measures must be provided to ensure safety in the system.

!WARNING Do not attempt to disassemble, repair, or modify any Units. Any attempt to do so may result in malfunction, fire, or electric shock.

4 Operating Environment Precautions

!Caution Do not operate the control system in the following locations:

•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 tempera- ture.

•Locations subject to corrosive or flammable gases.

•Locations subject to dust (especially iron dust) or salts.

•Locations subject to exposure to water, oil, or chemicals.

•Locations subject to shock or vibration.

!Caution Take appropriate and sufficient countermeasures when installing systems 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.

!Caution The operating environment of the Link Adapter system can have a large effect on the longevity and reliability of the system. Improper operating environments can lead to malfunction, failure, and other unforeseeable problems with the Link Adapter system. Be sure that the operating environment is within the specified conditions at installation and remains within the specified conditions during the life of the system.

5Application Precautions

!WARNING Always heed these precautions. Failure to abide by the following precautions could lead to serious or possibly fatal injury.

•Always ground the system to 100 Ω or less when installing the Units. Not con- necting to a ground of 100 Ω or less may result in electric shock.

•Always turn OFF the power supply to the Link Adapter system before attempt- ing any of the following. Not turning OFF the power supply may result in mal- function or electric shock.

•Mounting or dismounting the Units.

•Assembling the Units.

•Setting DIP switches or rotary switches.

•Connecting cables or wiring the system.

•Connecting or disconnecting the connectors.

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