TOSHIBA
6F3H1048
1 1 .3.6 Changing to Float Charge from Protection Charge (If appl icable)
Table 11.7 shows the manual procedure to change from protection charge to float charge.
This operation applies to batteries which needs protection charge when over temperature.
(1) The battery is normally being charged at float charge mode.
(2) To prevent the battery thermal runaway, this mode will automatically be changed to
protection charge when a " BATT FAULT1" (Battery over temperature) warning occurs.
(3) In protection charge mode, the battery is automatically charged at a voltage about 5%
lower than float charge
(4) If the " BATT FAUL T1" warning message goes away and a programmed duration is
elapsed (about 24 hours), this mode will automatically be changed back to float charge.
So, it is not usually required to change the recharge mode
manually
back to the float
charge.
Step
2
3
Table 1 1 .7 Changing from Protection Charge to Float Charge
Procedu re
Make sure the
PROTECTION LED is
On.
Make sure that the
" BATT FAU L T1 "
warning
goes away.
Press "FLOAT/EQAU L"
button [(6) in Figure
9.2 . 1 on page 25] for
0.5 sec. *
- Change completed .
LCD/LE D Status
UPS SUPPLY
AC-VO 480[V]
AC- I O 50[%]
UPS SUPPLY
AC-VO 480[V]
AC- I O 50[%]
FLOAT CHARG E is On, EQUAL CAH RG E* LED is Off.
- 43 -
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