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3Safety Precautions
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1 Intended Audience
This
manual is intended for the following personnel, who must also have knowl
-
edge of electrical systems (an electrical engineer or the equivalent).
• Personnel in charge of installing FA systems.
• Personnel in charge of designing FA systems.
• Personnel in charge of managing FA systems and facilities.
2 General Precautions
The
user must operate the product according to the performance specifications
described in the relevant manuals.
Before
using the product under conditions which are
not described in the manual
or applying the product to nuclear control systems, railroad systems, aviation
systems, vehicles, combustion systems, medical equipment, amusement ma-
chines, safety equipment, and other systems, machines, and equipment that
may
have a serious influence on lives and property if
used improperly
, consult
your OMRON representative.
Make sure that the ratings and performance characteristics of the product are
sufficient
for
the systems, machines, and equipment, and be sure to provide the
systems, machines, and equipment with double safety mechanisms.
Be
sure
to read this manual before attempting to use the Link Adapter and keep
this manual close at hand for reference during operation.
WARNING It
is extremely important that the Link Adapter be used for the specified purpose
and
under the specified conditions, especially in applications that can directly or
indirectly
af
fect
human life. Y
ou must consult with your OMRON representative
before
applying the Link Adapter system to the above-mentioned
applications.
3 Safety Precautions
WARNING Do
not attempt to take any Unit apart while the power is being supplied. Doing
so
may result in electric shock.
WARNING Do not touch any of the terminals or terminal blocks while the power is being
supplied. Doing so may result in electric shock.
WARNING Provide safety measures in external circuits (i.e., not in the Programmable
Controller),
including the following items, in order to ensure safety in the system
if
an abnormality occurs due to malfunction of the PC or another external factor
affecting the PC operation. Not doing so may result in serious accidents.
• Emergency stop circuits, interlock circuits, limit circuits, and similar safety
measures must be provided in external control circuits.
• The
PC will turn OFF all outputs when its self-diagnosis
function detects any
error
or when
a severe failure alarm (F
ALS) instruction is executed. As a coun
-
termeasure
for such errors, external safety measures must be provided to en
-
sure safety in the system.
• The PC 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
problems, external safety measures must be provided to ensure safety in
the system.