Omron CJ1W-CRM21, Operation Manual

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Intended audience 1-1
xi
1-1 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.
1-2 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 installing and operating using the
OMRON CJ1W-PNT21 PROFINET IO Controller Unit. 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 Unit is 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 using the Unit in
a system in the above mentioned applications.
1-3 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 Do not attempt to disassemble, repair, or modify any Units. Any attempt to do so may
result in malfunction, fire, or electric shock.
!WARNING
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 PLC or another (external) factor affecting the operation of the
PLC. 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 PLC will stop operation when its self-diagnosis function detects any error or
when a severe failure alarm (FALS) instruction is executed. As a countermeasure
for such errors, external safety measures must be provided to ensure safety in the
system.
• The PLC 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 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