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Application Precautions
5
• 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 build-up. Not doing so may result in malfunc-
tion or damage.
• When transporting or storing circuit boards, cover them in antistatic mate-
rial to protect LSIs, ICs, and other components from static electricity and
maintain the proper storage temperature.
• 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.
• Mount Units only after checking terminal blocks and connectors com-
pletely.
• Be sure that the terminal blocks, expansion cables, and other items with
locking devices are properly locked into place. Improper locking may
result in malfunction.
• Be sure that all the terminal screws, and cable connector screws are tight-
ened to the torque specified in the relevant manuals. Incorrect tightening
torque may result in malfunction.
• Wire all connections correctly.
• Use crimp terminals for wiring. Do not connect bare stranded wires
directly to terminals. Connection of bare stranded wires may result in
burning. Do not connect more than two crimp terminals to the same termi-
nal.
• Check switch settings, the contents of the DM Area, and other prepara-
tions before starting operation. Starting operation without the proper set-
tings or data may result in an unexpected operation.
• Always use the power supply voltages specified in this operation manuals.
An incorrect voltage may result in malfunction or burning.
• Double-check all wiring and switch settings before turning ON the power
supply.
• When assembling and wiring connectors, check all pin numbers carefully
and wire them correctly.
• Properly ground the NSJ Controller to prevent malfunction due to noise.
• Perform all wiring according to the methods given in this and other relative
manuals.
• Always use the special cables listed in this manual or make cables
according to manual specifications. Using commercially available cables
may damage the external devices or the NSJ Controller.
• Confirm the safety of the system before turning ON or OFF the power
supply or before pressing the reset button.
• Always reset the power supply after changing switch settings.
• Leave the label attached to an I/O Unit when wiring it. 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.
• Do not apply voltages to the Input Units in excess of the rated input volt-
age. Excess voltages may result in burning.
