Omron CS1W-SLK11-21 - 06-2004, Manual

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xvi
Application Precautions 5
• Connecting or disconnecting any cables or wiring.
• Connecting or disconnecting any connectors.
!Caution Failure to abide by the following precautions could lead to faulty operation or
the PLC or the system or could damage the PLC or PLC Units. Always heed
these precautions.
• Always use the power supply voltages specified in the operation manuals.
An incorrect voltage may result in malfunction or burning.
• Take appropriate measures to ensure that the specified power with the
rated voltage and frequency is supplied. Be particularly careful in places
where the power supply is unstable. An incorrect power supply may result
in malfunction.
• Install external breakers and take other safety measures against short-cir-
cuiting in external wiring. Insufficient safety measures against short-cir-
cuiting may result in burning.
• Disconnect the functional ground terminal when performing withstand
voltage tests. Not disconnecting the functional ground terminal may result
in burning.
• Do not attempt to disassemble, repair, or modify any Units. Any attempt to
do so may result in malfunction, fire, or electric shock.
• Be sure that all the mounting screws, terminal screws, and cable connec-
tor screws are tightened to the torque specified in the relevant manuals.
Incorrect tightening torque may result in malfunction.
• Leave the label attached to the Unit when wiring. Removing the label may
result in malfunction if foreign matter enters the Unit.
• Remove the label after the completion of wiring to ensure proper heat dis-
sipation. Leaving the label attached may result in malfunction.
• Use crimp terminals for wiring. Do not connect bare stranded wires
directly to terminals. Connection of bare stranded wires may result in
burning.
• Double-check all wiring and switch settings before turning ON the power
supply. Incorrect wiring may result in burning.
• Wire all connections correctly.
• Mount Units only after checking terminal blocks and connectors com-
pletely.
• Be sure that the communications cable connectors and other items with
locking devices are properly locked into place. Improper locking may
result in malfunction.
• Use special packing box when transporting the SYSMAC LINK Unit. Han-
dle the product carefully so that no excessive vibration or impact is
applied to the product during transportation.
• Check the user program for proper execution before actually running it on
the Unit. Not checking the program may result in an unexpected opera-
tion.
• Observe the following precautions when wiring the communications cable
or backup power supply cables.
• Separate the cables from the power lines or high-tension lines.
• Do not bend the cables beyond their natural bending radius.
• Do not pull on the cables.