Omron NX Series Hardware User Manual page 203

3
After removing an old battery, install a new battery.
4
Press in the battery harness and attach the battery cover.
Precautions for Safe Use
• Apply power for at least five minutes before changing the Battery. Install a new Battery within
five minutes (at 25°C) of turning OFF the power supply. If power is not supplied for at least 5
minutes, the retained clock data may be initialized.
• The Battery may leak, rupture, heat, or ignite. Never short-circuit, charge, disassemble, heat,
or incinerate the Battery or subject it to strong shock.
• Dispose of any Battery that has been dropped on the floor or otherwise subjected to exces-
sive shock. Batteries that have been subjected to shock may leak if they are used.
Precautions for Correct Use
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.
Additional Information
The Low Battery Voltage event is cleared automatically the next time the Controller is turned
ON after replacing the Battery.
Battery Service Life and Replacement Period
The service life of a battery is five years. Generally, the service life of a battery varies depending on
the ambient temperature and the power ON time rate. The NX102 CPU Unit, due to low power con-
sumption, ensures a battery life of 60 months (five years), which is equivalent to the battery service
life.
Make a plan to replace the Battery so that the service life of the Battery will not exceed the minimum
lifetime under the normal product usage condition.
The Battery service life when power ON time rate is 0% (i.e., power OFF)
Unit model number
NX102-££££
*1. This is the life expectancy which Omron guarantees, based on the calculation worst value of the part's spec-
ification of the product.
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 or Real-Time Clock Stopped event. If
the Battery is properly connected, replace the Battery with a new one as soon as possible.
NX-series NX102 CPU Unit Hardware User's Manual (W593)
Approx. minimum lifetime [month]
25°C 40°C
60
7 Inspection and Maintenance
*1
55°C
7
7-7