Duracomm BMS-360-48 User Manual

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BMS$360$48*
48$Volt*Battery*Management*System*
Owners*Guide*
(These instructions are intended for use by a technician familiar with electronic products)
Up!to!40!Amps!max!load!
Suggested!battery!capacity:!20!to!65!AH!
Smart!Charging!and!Low!Voltage!Disconnect!
Front!panel!indicators!for!AC!fail!
3!year!warranty
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, over­temperature, 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.
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SPECIFICATIONS
Operational DC Voltage…………………………………………………………………………………………..55.2 VDC, nominal Maximum Current, continuous……………………………………………………………………………………………….40 Amps Low Voltage Disconnect……………………………………………………………………………………………………... 42 VDC Low Voltage RE-Connect………………………………………………………………………………………………………50 VDC Maximum Charger output current……………………………………………………………………………………………6.2 Amps AC Input voltage range (switch selectable, Factory Set)……………………………………………….100-130 or 200-260 VAC Max inrush current, single cycle…………………………………………………………………………………………………..60 A Input frequency range…………………………………………………………………………………………………………47-63 Hz Typical Efficiency…………………………………………………………………………………………………………….……85 % Short Circuit protection………………………………………………………………………………………..……Fold back Limiting Overload Protection (operates)………………………………………………………………………………………..typical 110 % Over Temperature……………………………………………………………………………..>195 F (90 C) auto output shutdown Working Temperature range…………………………………………………………………………………-4 –140 F (-20 - +60 C) Storage Temperature………………………………………………………………………………………-40 – 185 F (-40 - +85 C) Size………………………………………………………………………………………...3.5” in (Two rack units) h x 19” w x 13” d! Weight…………………………………………………………………………………………………………………..12.5 lb, nominal
CHARGER SPECIFICATIONS
Output Voltage, charger……………………………………………………………………………………………………..55.2 VDC Maximum Charger Power, continuous…………………………………………………………………………………….360 Watts Maximum Charger output current……………………………………………………………………………………………6.2 Amps Max inrush current, single cycle………………………………………………………………………………………………60 Amps AC Input voltage range (switch selectable)…………………………………………………….…………90-130 or 180-260 VAC Input frequency range………………………………………………………………………………………………………..47-63 Hz Typical Efficiency……………………………………………………………………………………………………..………….85 %
Short circuit protection………………………………………………………………………………………….....Fold back Limiting
Overload Protection (operates)…………………………………………………………………………………………Typical 110% Over Temperature range…………………………………………………………..…………>195 F (90 C) auto output shutdown Working Temperature range…………………………………………………………………………………-4 –140 F (-20 - +60 C) Storage Temperature………………………………………………………………………………………-40 – 185 F (-40 - +85 C)
INSTALLATION WARNING
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.
DO NOT block any of the cooling vents on the sides and always allow adequate ventilation by not installing the unit inside tightly closed spaces. Physical mounting position is not critical but the cooling vents must not be blocked. Make certain the input voltage switch is set to the correct voltage BEFORE applying AC power.
The power supply output voltage measured at the rear panel terminals should be set to 56 VDC using an accurate voltmeter. This is to compensate for the 0.3 volt drop of the diode switches. If this voltage is not correct, charger mis-operation will result.
Connect the battery positive to the red terminal labeled, “Battery Positive (+)”.
Connect the load positive to the red terminal labeled, “Load Positive (+)”.
Connect the power supply positive output to the red terminal labeled, “Power Supply Positive (+)”.
Connect the power supply, battery and load negative outputs to the black terminal labeled, “Power Supply, Load, Battery Negative (-).
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