The Automatic Redundant Battery Selector
(ARBS) has been developed for customers requiring
battery redundancy in critical engine starting
applications. The ARBS allows the connection of
two separate battery systems to a single load. The
concept was quickly adapted by markets other
than engine start.
Based on customer requests, La Marche
developed two special versions of the ARBS units,
equipped with a brand new option: 57J. The new
option provides the customer with the ability to control the usage of each
battery connected to the ARBS. High current, normally closed contactors are
used on the inputs of the unit to ensure fail safe functionality of the system.
The digital controller provides four modes of operation (Battery 1 Only,
Battery 2 Only, Both Batteries ON and a Cycling Mode). The Cycling mode
switches the load between battery 1 and 2, based on the customer selectable
time interval (24Hr, 7 day, 14 day, 21 day and 30 day).
The controller has been equipped with safety features, which monitors the
voltage on each battery and turns on both batteries in the event of a low
voltage condition. The controller provides status / alarm relays (Battery 1
Connected, Battery 2 Connected and Fault). The LCD display provides
voltage reading for each of the batteries. The unit is also equipped with
Battery 1 On and Battery 2 On LED indicators.
La Marche has developed two versions of the ARBS unit with the option 57J.
The smaller ARBS unit has been developed for utility and similar type loads
(PLC’s, switchgear, monitoring equipment, etc.), while the other, larger unit
was developed for engine staring applications. A new set of accessories can
be provided for both types of ARBS units. Smaller, utility type ARBS units can
be equipped with input breakers. All units can be equipped with alarm relays
of a higher current rating to drive peripheral devices, strobe lights and horns.
These can also be requested with the new units, as well as Modbus Communication.
As always, La Marche can further customize the unit to fit customer