NX100 CONTROLLER BATTERY REPLACEMENT

The NX100 has a battery to back up the CMOS memory for the system. A battery alarm indicates that a battery has expired and must be replaced. The programming pendant will display the message "Memory battery weak" which will appear at the bottom of the display.

Material Required: Battery 153198-1 / ER6VC3N-3.6V

It is recommended to make a CMOS backup before changing battery.

BATTERY REPLACEMENT
WARNING: This procedure requires the door of the controller to be open with power on. High voltage is present inside the controller. Only trained/licensed personnel should perform this procedure. All local, state, and governing bodies regulations should be followed.   Turn on power to the NX100 controller.
Open the door of the NX100 controller by sliding the tab down and pulling the door open.
The battery is located behind the left cover of the CPU rack.
Loosen the top Phillips screw of the left cover.
Loosen the bottom Phillips screw and remove cover.
Disconnect the CNBAT connector from the NBB01 board and remove the battery.
Insert the new battery.
Connect the CNBAT connector to the NBB01 board.
Replace the cover and tighten the bottom Phillips screw.
Tighten the top Phillips screw.
Close the door of the NX100 controller by sliding the tab down.