Precautions for Safe Use
18
NX-series Digital I/O Unit User’s Manual (W521)
• Do not write on an NX Unit with ink within the restricted region that is shown in the following figure.
Also do not get this area dirty. When the Unit is installed or removed, ink or dirt may adhere to the
pins in the NX bus connector, which may result in malfunctions in the CPU Rack or the Slave Termi-
nal.
Refer to the user’s manual for the connected CPU Unit or Communications Coupler Unit for the
restricted region of CPU Unit and Communications Coupler Unit.
• For the installation orientations in the following figure, support the cables, e.g., with a duct, so that the
End Plate on the bottom is not subjected to the weight of the cables. The weight of the cables may
cause the bottom End Plate to slide downward so that the Slave Terminal is no longer secured to the
DIN Track, which may result in malfunctions.
Restricted
region (shaded
portion)
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