Omron NX Series Hardware User Manual page 158

5 Installation and Wiring
Battery Installation Procedure
Use the following procedure to install the Battery.
Precautions for Safe Use
We recommend mounting or replacing the Battery with the power turned OFF to prevent the
CPU Unit's sensitive internal components from being damaged by static electricity and to pre-
vent malfunctions. The Battery can be mounted or replaced without turning OFF the power sup-
ply. To do so, always touch a grounded piece of metal to discharge static electricity from your
body before you start the procedure.
If the Low Battery Voltage error occurs after you mount the Battery, connect the Sysmac Studio
and clear the error.
Additional Information
UL standards require that batteries be replaced by experienced technicians. Always place an
experienced technician in charge of battery replacement.
1
Turn OFF the power supply to the Controller.
If the CPU Unit has not been ON, turn it ON for at least five minutes and then turn it OFF.
2
Place your finger on the memory card cover located in the left side of the CPU Unit and open it
to the right.
3
Connect the connector of the battery to the battery connector and insert the battery in the bat-
tery slot.
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NX-series NX502 CPU Unit Hardware User's Manual (W629)