Omron 3G3MV-P10CDT-E User Manual page 12

PRECAUTIONS
Caution
Input Units may be destroyed.
• Do not apply voltages exceeding the maximum switching capacity to
Output Units. The Output Units may be destroyed.
• Install the Units properly as specified in the operation manuals. Improper
installation of the Units may result in malfunction.
• Wire all connections correctly. Double-check all wiring and switch settings
before turning on the power supply. Incorrect wiring may result in burning.
• Mount Units only after checking terminal blocks and connectors completely.
• Be sure that the terminal blocks, Memory Units, expansion cables, and
other items with locking devices are properly locked into place. Improper
locking may result in malfunction.
• Check switch settings, the contents of the DM Area, and other preparations
before starting operation. Starting operation without the proper settings or
data may result in an unexpected operation.
• Check the user program for proper execution before actually running it on
the Unit. Not checking the program may result in an unexpected operation.
• Confirm that no adverse effect will occur in the system before attempting
any of the following. Not doing so may result in an unexpected operation.
• Changing the operating mode of the PLC.
• Force-setting/force-resetting any bit in memory.
• Changing the present value of any word or any set value in memory.
• Resume operation with a new CPU Unit only after transferring the contents
of the DM Area, HR Area, and other data required for resuming operation
to the new Unit. Not doing so may result in an unexpected operation.
• Do not pull on the cables or bend the cables beyond their natural limit.
Doing either of these may break the cables.
• Do not place objects on top of the cables or other wiring lines. Doing so
may break the cables.
• Before touching a Unit, be sure to first touch a grounded metallic object in
order to discharge any static built-up. Not doing so may result in malfunc-
tion or damage.
• Do not touch circuit boards or the components mounted to them with your
bare hands. There are sharp leads and other parts on the boards that may
cause injury if handled improperly.
• Do not attempt to take any Units apart, to repair any Units, or to modify any
Units in any way.
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