Omron NJ501-1400 User Manual page 281

Low Battery Indicators
If the Controller Setup has been set to detect a low-battery error, the ERROR indicator on the front of
the CPU Unit will flash when the battery is nearly discharged.
If the ERROR indicator flashes, connect the Sysmac Studio, and then check the CPU Unit's Battery
connection if the Sysmac Studio shows a Low Battery Voltage, Battery-backup Memory Check Error, or
Real-Time Clock Stopped event. If the Battery is properly connected, replace the Battery with a new
one as soon as possible.
Once a low-battery error has been detected, it will take 5 days (at an ambient temperature of 25C)
before the battery fails if power has been supplied at least once a day. Clock data and variables that are
retained during power interruptions can be retained by ensuring that the CPU Unit power is not turned
OFF until the Battery has been replaced.
Precautions for Correct Use Precautions for Correct Use
The Battery will loose its charge faster at high ambient temperatures.
 Replacement Battery
Use the CJ1W-BAT01 Battery Set.
Precautions for Correct Use Precautions for Correct Use
Be sure to install a replacement Battery within two years of the production date shown on the
Battery label.
Production Date
CJ1W-BAT01
08-06
NJ-series CPU Unit Hardware User's Manual (W500)
Manufactured in June 2008.
6 Inspection and Maintenance
6
6-5