Intended audience 1
vii
Precautions
1 Intended audience
This manual is intended for the following personnel, who must also have
knowledge 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 operation 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 machines, 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.
This manual provides information for using the CJ1W-MCH72. Be sure to read
this manual before attempting to use the Unit and keep this manual close at
hand for reference during operation.
!WARNING It is extremely important that the CJ1W-MCH72 and related devices be used for the
specified purpose and under the specified conditions, especially in applications that can
directly or indirectly affect human life. You must consult with your OMRON
representative before applying the CJ1W-MCH72 and related devices to the above
mentioned applications.
3 Safety precautions
!WARNING Never short-circuit the positive and negative terminals of the batteries, charge the
batteries, disassemble them, deform them by applying pressure, or throw them into a
fire.
The batteries may explode, combust or leak liquid.
!WARNING The CJ1W-MCH72 outputs will go off due to overload of the output transistors
(protection). As a countermeasure for such problems, external safety measures must
be provided to ensure safety in the system.
!WARNING The CJ1W-MCH72 will turn off the WDOG when its self-diagnosis function detects any
error. As a countermeasure for such errors, external safety measures must be provided
to ensure safety in the system.
!WARNING Never attempt to disassemble any Units while power is being supplied. Doing so may
result in serious electric shock.
!WARNING Do not attempt to disassemble, repair, or modify any Units. Any attempt to do so may
result in malfunction, fire, or electric shock.
!WARNING Never touch any of the terminals while power is being supplied. Doing so may result in
serious electric shock.
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