Vertiv APM Plus 0500kMK16FN02000 User Manual Download

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6. EOD protection

When the battery voltage drops to the EOD voltage, the battery converter shuts down automatically and the
battery is inhibited to avoid further battery discharge. The EOD voltage is settable from 1.60 V/cell to 1.90
V/cell (VRLA).

Battery low pre-warning time

The battery low pre-warning time is adjustable between 3 min and 60 min. The default setting is 5 min.

Maximum battery discharge time

When the battery has small current discharge for a long time, the battery is over discharged and even has
unrecoverable damage, thus setting a battery discharge time to protect the battery is essential. The limit of
time setting shall be configured by service engineer through the Vertiv firmware setting.

9. Maximum boost charge protection time

To protect against the battery overcharge damage caused by long time boost charge, a protect time setting is
essential. The limit of time setting shall be configured by service engineer through the Vertiv software setting.

2.5.2 Advanced Function

The UPS provides battery maintenance test function. At periodic intervals, 20% of the rated capacity of the battery will be
discharged automatically, and the actual three-phase load must exceed 20% of the nominal UPS capacity. If the load is less
than 20%, the automatic discharge cannot be executed. The periodic interval can be set from 30 to 360 days. The battery
maintenance test function can be disabled through the Vertiv software setting.

Conditions: Battery at float charge for at least 5h, load equal to 0 to 100% of rated UPS capacity.

Trigger: Automatically or manually through the command of battery maintenance test in touch screen.

Interval: 30 to 360 days (default setting: 60 days).

The UPS also provides battery capacity self-test function: Periodically test the battery activity, test the battery residual
capacity, judge the battery quality, and then provide corresponding measures. The capacity self-test is started by the user
through the touch screen. During the capacity self-test, the battery will continuously discharge to the battery undervoltage
shutdown threshold. After the self-test is finished, the system will update the battery curve table. The capacity self-test
command is valid only one time, without any memory. During the capacity self-test, if the battery maintenance requirement
is satisfied, the system will generate audible/visual alarm and give corresponding records.

Conditions: System load rate within 20% to 100%, battery float charge at least 5h, and generator not connected; the current
system is in float charge state.

Trigger: Start up through the touch screen.

N O T E: T h e battery will co n tin u o u sly disch arge to th e battery u n der-vo ltage sh u tdo wn th resh o ld, th en

th e battery will tran sfer to th e ch argin g state. W h en th e capacity self-test is fin ish ed, th e system will

u pdate th e battery cu rve table.

N O T E: T h e u ser can m an u ally sto p th e capacity self-test o peratio n th ro u gh th e to u ch screen .

2 Overview

Vertiv™ Liebert® APM Plus User Manual