Precautions For Safe Use - Omron NA-series Startup Manual

Precautions for Safe Use

• When unpacking the NA Unit, check carefully for any external scratches or other damages. Also,
shake the NA Unit gently and check for any abnormal sound.
• The NA Unit must be installed in a control panel.
• The mounting panel must be between 1.6 and 6.0 mm thick. Tighten the Mounting Brackets evenly to
a torque of between 0.5 and 0.6 N·m to maintain water and dust resistance. If the tightening torque
exceeds the specified value, or the tightening is not even, deformation of the front panel may occur.
What is more, make sure the panel is not dirty or warped and that it is strong enough to hold the NA
Unit.
• Do not let metal particles enter the NA Unit when preparing the panel.
• Turn OFF the power supply before connecting or disconnecting cables.
• Periodically check the installation conditions in applications where the NA Unit is subject to contact
with oil or water.
• Be certain to use the cables with lock mechanism such as serial cable or the Ethernet cable after
confirming if it is securely locked.
• Do not touch the packaging part of the circuit board with your bare hands. Discharge any static elec-
tricity from your body before handling the board.
• Do not use volatile solvents such as benzene and thinners or chemical cloths.
• Water and oil resistance will be lost if the front sheet is torn or is peeling off. Do not use the NA Unit,
if the front sheet is torn or is peeling off.
• As the rubber packing will deteriorate, shrink, or harden depending on the operating environment,
periodical inspection is necessary.
• Confirm the safety of the system before turning ON or OFF the power supply, or pressing the reset
switch.
• The whole system may stop depending on how the power supply is turned ON or OFF. Turn ON/OFF
the power supply according to the specified procedure.
• Operate DIP switch according to the following way.
Correct technique
Back of the case
The DIP switch may break if it is levered with a tool against the case as shown in the figure.
• Once the DIP switch settings are changed, reset by pressing the reset switch, or restart the power
supply.
• Initialize the project, after confirming that existing project is backed up at the Sysmac Studio.
• When changing the password, do not reset or turn OFF the power supply until the writing is com-
pleted. A failure to store the password may cause the project to fail to function.
• While uploading or downloading a project or a system program, do not perform the operations as fol-
lows. Such operations may corrupt the project or the system program:
• Turning OFF the power supply of the NA Unit
• Resetting the NA Unit.
• Removing the USB devices or SD card.
• Disconnecting the cable between a support tool and the NA Unit.
• Do not connect an AC power supply to the DC power terminals.
• Do not perform a dielectric strength test.
NA-series Programmable Terminal Startup Guide (V120)
Incorrect technique
DIP switch
Precautions for Safe Use
13