OnLine Power Power Wave 4 - Manual (Page 18)

6005-145 Rev. A 1-7
(n) Intelligent battery test: The batteries are tested after every boost
(initiated by battery discharge or by the monthly boost charge cycle). This
is done without interrupting the operation of the rectifier, preventing the
risk of output AC failure in case of a bad battery. The user is informed of
the battery condition, so that action can be taken before the full capacity of
the batteries is needed.
(o) Huge charging power: The charging power is selectable (Lo/Me/Hi)
according to Ah rating of the batteries, and can charge up battery banks
providing more than 8Hrs back-up time without adding an extra charger.
(p) MTBF of fans are extended: Fans used to cool the ELI, are designed to
slow down under light load, so that the life expectancy of the fans is
extended beyond the normal.
(q) Redundant power supply: A supplemental power supply is added to
provide redundancy for supplying power to the static switch, so that there
will be AC output no matter what happens to the ELI.
(r) Variety of accessory (options): With built-in intelligent communication
interface as well as output ports of RS-232, RS-485, and dry contacts,
there are several options are hence available such as remote control panel,
3 phases software for PC monitoring, auto dialing module, battery
monitoring module, 3 phases SNMP card.