Operating Environment Precautions - Omron SYSMAC 3G8F7-CLK13-E Operation Manual

Operating Environment Precautions

!Caution Execute online edit only after confirming that no adverse effects will be
!Caution Confirm safety at the destination node before transferring a program to
!Caution Tighten the connector screws for the backup power supply to the torque spec-
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Operating Environment Precautions

!Caution Do not operate the control system in the following locations:
!Caution Take appropriate and sufficient countermeasures when installing systems in
• The PLC will turn OFF all outputs when its self-diagnosis function detects
any error or when a severe failure alarm (FALS) instruction is executed.
Unexpected operation, however, may still occur for errors in the I/O con-
trol section, errors in I/O memory, and other errors that cannot be
detected by the self-diagnosis function. As a countermeasure for all such
errors, external safety measures must be provided to ensure safety in the
system.
• The PLC outputs may remain ON or OFF due to deposition or burning of
the output relays or destruction of the output transistors. As a counter-
measure for such problems, external safety measures must be provided
to ensure safety in the system.
• Provide measures in the computer system and programming to ensure
safety in the overall system even if communications errors or malfunc-
tions occur in data link communications or remote I/O communications.
• When the 24-VDC output (service power supply to the PLC) 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.
caused by extending the cycle time. Otherwise, the input signals may not be
readable.
another node or changing contents of the I/O memory area. Doing either of
these without confirming safety may result in injury.
ified in this manual. The loose screws may result in burning or malfunction.
• 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 tem-
perature.
• 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.
the following locations:
• Locations subject to static electricity or other forms of noise.
• Locations subject to strong electromagnetic fields.
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