DuraComm BMS-360-48 Product User Manual

DuraComm BMS-360-48 Product User Manual

48-volt battery management system

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(These instructions are intended for use by a technician familiar with electronic products)
2   R ack   u nit   h igh  
Up   t o   4 0   A mps   m ax   l oad  
Suggested   b attery   c apacity:   2 0   t o   6 5   A H  
Smart   C harging   a nd   L ow   V oltage   D isconnect  
Front   p anel   i ndicators   f or   A C   f ail  
3   y ear   w arranty

DESCRIPTION

The Model BMS-360-48 is a complete battery management system for installations which already have a primary power
supply but are lacking battery backup. Smart Charging and battery protecting Low Voltage Disconnect maintain and prevent battery
failures caused by over-charging and excessively deep discharging. Dual Schottky diodes provide smooth transfer to battery power and
auto-revert to AC mains power that is seamless and glitch less.
The Smart Charger is designed to auto-charge and maintains Gelled electrolyte (Gel-Cell) and liquid electrolyte lead-acid 48
volt batteries up to 65 Amp Hour. The charger is a constant current monitoring charger for the charging and maintenance of fixed
location UPS, emergency lighting systems, and telecommunications battery backup systems.
The charger is protected against over loading by deep discharge start circuitry with auto shut down due to over-voltage, over-
temperature, short circuit and reverse polarity.
Switching mode circuit design provides high efficiency, compact size, cool operation, and high reliability.
The Model BMS-360-48 incorporates an automatic Low Voltage Disconnect that monitors battery voltage and disconnects the
load when the battery voltage drops below 42 VDC. The LVD has been adjusted and calibrated at the factory for correct voltage
disconnect and re-connect. No adjustment is required.
The LVD is pre-set to disconnect the load at 42 VDC. However, to prevent premature or false disconnect when the battery
voltage drops below the 42 volt threshold a timer is started. If the battery recovers to above 42 volts, the timer resets and waits. The
battery can and will recover if the system is a repeater or remote base station or similar equipment that has a varying demand that
fluctuates from low to high current. The delay ensures the battery is not disconnected until necessary to prevent damage.
After the AC main power is restored and the battery is recharging, the LVD will reconnect the load when the battery voltage
exceeds 50 volts.
BMS-­‐360-­‐48  
48-­‐Volt   B attery   M anagement   S ystem  
Owners   G uide  
  o f   4  
1
September   1 2,   2 014

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Summary of Contents for DuraComm BMS-360-48

  • Page 1 • DESCRIPTION The Model BMS-360-48 is a complete battery management system for installations which already have a primary power supply but are lacking battery backup. Smart Charging and battery protecting Low Voltage Disconnect maintain and prevent battery failures caused by over-charging and excessively deep discharging. Dual Schottky diodes provide smooth transfer to battery power and auto-revert to AC mains power that is seamless and glitch less.
  • Page 2 The individual user should take care to determine, prior to use or installation, whether this device is suitable, adequate or safe for the use intended. Since individual applications are subject to great variation, DuraComm makers no representation or warranty as to the merchantability, suitability or fitness of these units for any specific application.
  • Page 3 NOTE: The individual user should take care to determine, prior to use or installation, whether this device is suitable, adequate or safe for the use intended. Since individual applications are subject to great variation, DuraComm makes no representation or warranty as to the merchantability, suitability or fitness of these units for any specific application.
  • Page 4 DuraComm, at its option, will repair or replace the faulty product or parts thereof, which, after examination by DuraComm, prove to be defective or not operational according to specifications in effect at the time of sale to the initial end user.

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