Omron CP1E-E10DT-A, Руководство пользователя

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16 CP1E CPU Unit Hardware User’s Manual(W479)
Do not attempt to take any Unit apart 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.
Provide safety measures in external circuits (i.e., not in the Programmable Con-
troller), including the following items, to ensure safety in the system if an
abnormality occurs due to malfunction of the PLC or another external factor
affecting the PLC operation.
Not doing so may result in serious accidents.
• Emergency stop circuits, interlock circuits, limit circuits, and similar safety mea-
sures must be provided in external control circuits.
• 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 opera-
tion, however, may still occur for errors in the I/O control section, errors in I/O mem-
ory, and errors that cannot be detected by the self-diagnosis function. As a
countermeasure for all these 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 countermeasure for such prob-
lems, external safety measures must be provided to ensure safety in the system.
• 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.
Fail-safe measures must be taken by the customer 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.
Do not apply the voltage/current outside the specified range to this unit.
It may cause a malfunction or fire.
WARNING