Vertiv Tech EXS 0080kTK16FN01000, Руководство пользователя

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Vertiv | Liebert EXS 80kVA UPS | User Manual 12
Overview
1.5. Battery Management
The following battery management functions are set by the service engineer through the Vertiv setting software.
1.5.1. Normal Function
1. Constant current boost charge
To charge the battery, adopt the constant current (within battery charging limit). The function can be used
for quick battery capacity recovery. The charge current can be set.
2. Constant voltage boost charge
Adopt the constant voltage to charge battery. The function can be used for quick battery capacity recovery.
For VRLA batteries, the maximum boost charge voltage should not exceed 2.4 V/cell.
3. Float charge
The charging method is used to hold the full capacity of the battery. The float charge voltage is generally
low. The function can balance the capacity loss due to battery self-discharging and can be used for battery
capacity recovery.
For VRLA batteries, the float charge voltage should be between 2.2 V/cell and 2.3 V/cell.
4. Automatic transfer to float charge
When the charge current is less than ‘Threshold of Equalize Charge to Float Charge’ or 0.5 A, the charger
automatically transfers from boost charge to float charge.
When boost charge time exceeds the limit of ‘Equalize Charge Protect Time Limit’, the charger forcibly
transfers to float charge for protecting the battery.
5. Float charge temperature compensation (optional)
This function needs to be used in conjunction with the battery temperature detection device. The Vertiv
battery temperature sensor is a standard option for your selection.
6. EOD protection
When the battery voltage drops to the EOD voltage, the battery converter automatically shuts down 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).
7. 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.
8. 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, so it is essential to set the battery discharge time to protect the battery. The time
limit setting shall be configured by service engineer through the Vertiv setting software.
9. Maximum boost charge protection time
To protect against the battery overcharge damage caused by a long-time boost charge, a protect time
setting is essential. The time limit setting shall be configured by service engineer through the Vertiv setting
software.