Omron C200H-MC221 Operation Manual page 20

Application Precautions
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• 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.
• Double-check all the wiring before turning ON the power supply. Incorrect wir-
ing may result in burning.
• Disconnect the functional ground terminal when performing withstand voltage
tests. Not disconnecting the functional ground terminal may result in burning.
• Confirm that no adverse effect will occur in the system before changing the
present value of any word or any set value in memory. Not doing so may result
in an unexpected operation.
• Confirm that set parameters and data operate properly. Not doing so may
result in an unexpected operation.
• Do not attempt to take any Units apart, to repair any Units, or to modify any
Units in any way.
• 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. Doing so may break the cables.
• Do not hold by the cables when transporting the Units. Doing so may damage
the Units.
• Install the Unit properly as specified in the operation manual. Improper installa-
tion of the Unit may result in malfunction.
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