Application Precautions - Omron 3G8F5-DRM21-E - V2 Operation Manual

Application Precautions

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Application Precautions

!WARNING
!Caution Failure to abide by the following precautions could lead to faulty operation or
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Observe the following precautions when using the DeviceNet Configurator.
Failure to abide by the following precautions could lead to serious or possibly
fatal injury. Always heed these precautions.
• Always connect to a class-3 ground (100 Ω or less) when installing the
Units.
the PLC or the system or could damage the PLC or PLC Units. Always heed
these precautions.
• Enable the scan list to before operating the system.
• When adding a new node to the network, make sure that the baud rate is
the same as other nodes.
• Use specified communications cables.
• Do not extend connection distances beyond the ranges given in the spec-
ifications.
• Always turn OFF the power supply to the personal computer, Slaves, and
Communications Units before attempting any of the following.
• Attaching or detaching the DeviceNet Board or Card.
• Assembling the Units.
• Setting rotary switches.
• Connecting or wiring the cables.
• Connecting or disconnecting connectors.
• Be sure that the communications cables and other items with locking
devices are properly locked into place.
• Be sure that all Board mounting screws, connector screws, and cable
screws are tightened to the torque specified in this manual.
• Always use the power supply voltage specified in this manual.
• Double-check all the wiring and connection of terminal blocks and con-
nectors before mounting the Units.
• Use crimp terminals for wiring. Do not connect bare stranded wires
directly to terminals.
• Observe the following precautions when wiring the communications
cable.
• Separate the communications cables from the power lines or high-ten-
sion lines.
• Do not bend the communications cables.
• Do not pull on the communications cables.
• Do not place heavy objects on top of the communications cables.
• Be sure to wire communications cable inside ducts.
• Use appropriate communications cables.
• Before touching the PCI Board, be sure to first touch a grounded metallic
object in order to discharge any static build-up. Not doing so may result in
malfunction or damage.
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