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Precautions for Correct Use
NJ-series CPU Unit Software User’s Manual (W501)
• Be sure to install a replacement Battery within two years of the production date shown on the Battery
label.
• Turn ON the power after replacing the Battery for a CPU Unit that has been unused for a long time.
Leaving the CPU Unit unused again without turning ON the power even once after the Battery is
replaced may result in a shorter Battery life.
• When you replace the Battery, use the CJ1W-BAT01 Battery Set.
• Insert the SD Memory Card all the way.
• Do not turn OFF the power supply to the Controller during SD Memory Card access. The files may be
corrupted.
If there is a corrupted file in the SD Memory Card, the file is automatically deleted by the restoration
function when the power supply is turned ON.
When performing online editing in combination of a CPU Unit with a unit version of 1.04 or later and
Sysmac Studio version 1.05 or higher, the CPU Unit saves a program updated by the online editing to
built-in non-volatile memory. Sysmac Studio shows a message that it is in a backup operation. Do not
turn OFF the power supply to the Controller while this message is displayed. If the power supply to the
Controller is turned OFF, a Controller error will occur when the power supply is turned ON next time.
Battery Replacement
SD Memory Cards
Online Editing
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