Owner's manual please read this manual before operating your voju battery back-up model: bbm-1225.
Safety instructions ........................................................... 2 description ...................................................................... 2 principle of operation ............................................. 3,4,5,6 installation ..............................................
Safety instructions description this unit is used to allow any 12 vdc / 24 vdc power supply to function as a dc un- interrupted power source (ups). This unit is a passive device and acts only as an interface between the power supply, the battery and the dc load. As long as the power supply is operat...
Principle of operation please refer to the schematic diagram at fig. 1 the power supply is connected to the positive and negative input terminals. The battery is connected (through a fast acting fuse of the appropriate current capacity) to the battery terminals and the load is connected to the load ...
Power supply voltage for 12v sla battery backup: 14 v (the output voltage of this unit for the load and for float charging of the battery will be 14 v minus drop of 0.4 v to 0.5 v across diode d1 i.E. 13.6 v to 13.5 v) power supply voltage for 24v sla battery backup: 27.6 v (the output voltage for t...
If the power supply fails, the load will be supplied by the battery through the schottky diode d2. As in the case of diode d1, there will be a forward voltage drop of 0.4 to 0.5 v across d2. Thus, when the battery is supplying the load, the voltage seen by the load will be 0.4 to 0.5 v less than the...
Calculating maximum battery charging current maximum battery charging current ib = {(vp – vd) – vb} divided by rs ………. Equation 1 vp = the output voltage of the power supply vd = forward voltage drop across d1 (0.4 v for 10 a) vb = battery voltage at fully discharged condition (normally 11.4 v for 1...
Installation cable sizing, termination and fusing the size of the cables used to connect the power supply, the battery and the load to this unit will depend upon the maximum value of the current flow and the length of the cable run. Current flowing through a cable will produce an undesir- able volta...
Connections before the power supply is connected to this unit, it is to be ensured that the output voltage of the power supply is adjusted to the required voltage as ex- plained under “principle of operation”. Switch off the power supply. Connect the positive and negative output of the power supply ...
Specifications input voltage 14 vdc for 12 v battery 27.6 vdc for 24 v battery input current up to 25 a output voltage 0.5 v less than the input voltage (at 10 a) i.E. • 13.5 vdc for input voltage of 14 vdc for 12 v battery • 27.1 vdc for input voltage of 27.6 vdc for 24 v battery output current to ...
2 year limited warranty the bbm-1225 manufactured by samlex america, inc. ( the “ warrantor “ ) is warranted to be free from defects in workmanship and materials under normal use and service. This warranty is in effect for 2 years from the date of purchase by the user ( the “ purchaser “) for a warr...
110-17 fawcett rd coquitlam, b.C. Canada v3k 6v2 t: 604 525 3836 f: 604 525 5221 e-mail: samlex@samlexamerica.Com website: www.Samlexamerica.Com iversion# bbm-1225(june 2005).
