2.5.3 Battery Temperature Compensation
The UPS system has battery charge temperature compensation function. When the ambient temperature is increased, the
DC bus voltage (which charges the battery) will be reduced correspondingly to provide optimal charging voltage for the
battery, thus prolonging the battery service life time.
This function must be used together with the Vertiv battery temperature detection device (a standard option).
2.6 Battery Protection
W A R N IN G ! T h e u ser m u st select an appro priate M CCB to pro tect again st sh o rt circu it an d
o verlo ad fo r th e battery. W e reco m m en d u sin g Vertiv B CB to pro vide a better so lu tio n .
The following battery protection functions are set by the service engineer through the Vertiv software setting.
Battery low pre-warning
The battery low pre-warning occurs before the EOD. After this pre-warning, the battery should have the capacity of three
minutes discharging with full load. The time can be configured from 3 min to 60 min.
EOD protection
When the battery voltage drops to the EOD voltage, the battery converter shuts down automatically. For VRLA batteries,
the EOD voltage is adjustable from 1.60 V/cell to 1.90 V/cell (VRLA).
BCB alarm
The BCB alarm occurs when the external BCB opens, if you select the Vertiv BCB (optional).
The external battery connects to the UPS through the BCB. The BCB is manually closed and tripped by the UPS control
circuit.
2 Overview
25
Vertiv™ Liebert® APM Plus User Manual
Summary of Contents for APM Plus 0500kMK16FN02000
Page 1: ...Vertiv Liebert APM Plus User Manual 50 500 kVA UPS...
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Page 34: ...2 Overview 26 This page intentionally left blank Vertiv Liebert APM Plus User Manual...
Page 45: ...Four switches 500 kVA 3 Mechanical Installation 37 Vertiv Liebert APM Plus User Manual...
Page 76: ...Figure 5 11 Customize the display 5 Touch Screen 68 Vertiv Liebert APM Plus User Manual...
Page 86: ...Figure 5 20 Enable module redundancy 5 Touch Screen 78 Vertiv Liebert APM Plus User Manual...
Page 91: ...Figure 5 24 Status Gauge setting options 5 Touch Screen 83 Vertiv Liebert APM Plus User Manual...
Page 92: ...5 Touch Screen 84 Vertiv Liebert APM Plus User Manual...
Page 94: ...5 Touch Screen 86 Vertiv Liebert APM Plus User Manual...
Page 95: ...Figure 5 26 Unit status Bypass details 5 Touch Screen 87 Vertiv Liebert APM Plus User Manual...
Page 96: ...Figure 5 27 Unit status Battery details 5 Touch Screen 88 Vertiv Liebert APM Plus User Manual...
Page 97: ...Figure 5 28 Unit status Load details 5 Touch Screen 89 Vertiv Liebert APM Plus User Manual...
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