Omron 3G8F7-CRM21, User Manual

Page: 17 / 238

xvii
Safety Precautions 3
3 Safety Precautions
4 Operating Environment Precautions
• 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, oil, or chemicals (including
acids)
• Locations subject to shock or vibration
5 Application Precautions
Observe the following precautions when using a CompoNet Network.
• When more than one CompoNet system use Flat Cables, always
separate the Flat Cables from each other by at least 5 mm regardless of
whether Flat Cable I or II is used. Do not bundle the Flat Cables. This is to
prevent unstable operation of the system due to interference.
Do not attempt to take any Unit apart or touch the component inside while the power is
being supplied. Doing so may result in electric shock.
Do not touch any of the terminals or terminal blocks while the power is being supplied.
Doing so may result in electric shock.
Fail-safe measures must be taken by the user to ensure safety in the event of incorrect,
missing or abnormal signals caused by broken signal lines, momentary power
interruptions or other causes. Serious accidents may result from abnormal operation if
proper measures are not provided.
Provide safety measures in external circuits (i.e., not in the personal computers) that
ensure safety of the system in any event of an abnormality due to malfunction of the PC
or another external factor affecting the PC operation. The failure to do so may result in
serious accidents. Emergency stop circuits, interlock circuits, limit circuits and similar
safety measures must be provided in external control circuits.
Confirm safety at the destination Slave Unit before changing it or transferring parameters
to another node. Changing or transferring any of these without confirming safety may
result in unexpected equipment operation.
A Slave Unit may change the output content if it faces a communications failure. When
you use outputting devices, confirm their operation specification on an event of
communications failure, and take the necessary safety measures.
Do not operate the products in the following locations.
WARNING
WARNING
WARNING
WARNING
Caution
Caution
Caution