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3.3.3
Battery Replacement
SRAM equipped on the X8HC printed board of the TS2000 controller is backed up
by a lithium battery to save the data. Replace the battery every five (5) years.
The lithium battery will turn its life when used for a predetermined time. If it is
used, neglecting the life, the battery voltage will drop to below the voltage required
for keeping the SRAM data, resulting in data being lost and faults caused by
leakage of the battery liquid.
If the following alarm has occurred, replace the battery with a new one.
MAIN Battery alarm (alarm code 1–145)
X8HC printed
board
Fig. 3.5 Location of lithium battery
– 3–7 –
MAINTENANCE MANUAL
STE 73872
Lithium
battery
CN2
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