Introduction
This micro-processor controlled 3 stage DC-DC charger can be installed as:
battery charger or battery equalizer or regulated dc-dc step-down converter. It
operates with any DC input source of 24- 30 V with various output voltage
according to selected installation.
Applications & Features
1. As a 3 stage charger for 12V battery bank from a 24V source, it has selection
for Wet, AGM and Calcium-Calcium battery types.
With the optional Remote Display Module, user can set the absorption voltage
level & time and the float voltage.
2. As a Battery Equalizer which balances both 12V series connected batteries in
a 24V battery system during charging and even under highly unbalanced load
from center tap.
3. As a DC-DC Step Down Converter (Voltage Reducer) with regulated 40A,
13.8 VDC output for voltage sensitive load.
4. Automatic car ignition connection to enable operation only when car is
switched on or by manual remote simple on-off contact control.
5. Optional remote control display module (BBR-3100) for charger application.
6. Optional temperature sensor (ATS-5120) for battery.
Protection
Low Input Voltage
Unit output will be off when input voltage is less than 22V +/- 1V. The output
will shut down immediately and
LED A turns red. When input voltage rises
higher than 24V for 2 minutes continuously, the unit will return to normal
operation again, LED A turns green again.
High Input Voltage
Unit output will be off when input voltage is above factory preset level LED A
turns red.
When input voltage drops below the preset level unit operates again, LED A
turns green again.
Output Short Circuit
When output is short circuited, unit will be disabled and LED A turns red.
After short circuit is removed, unit has to be manually switched off then on
again to restore normal operation
Output Overloaded
If unit is continuously overloaded, unit will be disabled and LED A turns red.
After overload is fixed, unit has to be manually switched off then on again to
restore normal operation
