MAINTENANCE1. METHOD OF REPLACING BATTERY
A lithium battery is used to back up BIOS data in the CNC display unit
with PC functions. This battery is factory–set in the CNC display unit
with PC functions. This battery has sufficient capacity to retain BIOS
data for one year.
When the battery voltage becomes low, the LCD screen blinks. (The LCD
screen also blinks if a fan alarm is issued.) If the screen blinks, replace
the battery as soon as possible (within one week). FANUC recommends
that the battery be replaced once per year regardless of whether a battery
alarm is issued.
(1)To guard against the possible loss or destruction of BIOS parameters,
write down the BIOS parameter values.
(2)Obtain a new lithium battery (A02B–0200–K102).
(3)After power has been supplied for at least five seconds, turn off the
power to CNC display unit with PC functions. Remove the intelligent
terminal from the panel so that replacement work can be done from the
rear of the intelligent terminal.
(4)Detach the connector of the lithium battery, and remove the battery
from the battery holder.
(5)Run the cable for the new lithium battery as shown in the Fig. 1.3.
(6)Attach the connector, and place the battery in the battery holder.
(7)Install CNC display unit with PC functions again.
(8)Turn on the power, and check that the BIOS parameters are maintained
(BIOS setup is not activated forcibly).
Between removing an old battery and inserting new battery, no more than
five minutes must be allowed to elapse.
BATTERY IN THE
CNC DISPLAY UNIT
WITH PC FUNCTIONS
Replacing the battery