Intended Audience; General Precautions; Safety Precautions - Omron C200HW Operation Manual

Safety Precautions

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Intended Audience

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General Precautions

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Safety Precautions

WARNING
!
WARNING
!
WARNING
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! Caution
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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.
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 programming and operating Position Con-
trol Unit. Be sure to read this manual before attempting to use the PCU and keep
this manual close at hand for reference during operation.
Never attempt to disassemble any Units while power is being supplied. Doing so
may result in serious electrical shock or electrocution.
Never touch any of the terminals while power is being supplied. Doing so may
result in serious electrical shock or electrocution.
Provide safety measures in external circuits (i.e., not in the Programmable
Controller), including the following items, 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 (FALS) instruction is executed. As a coun-
termeasure for such errors, external safety measures must be provided to
ensure safety in the system.
• The PC outputs may remain ON or OFF due to deposits on 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.
• When the 24-V DC output (service power supply to the PC) 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.
Tighten the screws on the terminal block on the AC Power Supply Unit to the
torque specified in the C200H, C200HS, or C200HX/HG/HE-(Z)E installation
guide. Loose screws may result in short-circuits, malfunction, or burning.
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