The remote unit calculates the actual discharged capacity and communicates to the central unit of the
battery charger the exact value of capacity to reintegrate in the course of charge cycle.
The control unit is capable of detecting the malfunctioning alarms of the charge cycle and submit them to the
user through an appropriate menu for management and resolution of the same. Finally, all the correctly
concluded charge cycle or interrupted cycle information are memorised on a memory external to the micro-
controller in a way to create an informative database necessary to achieve a thorough utilisation analysis of
the battery charger and of the battery conditions.
The mother card (main board) is provided with a basic circuitry able to carry out the standard control
operations for the battery charger and of optional circuitry’s for the added operation implementation and to
satisfy specific requirements.
•The basic circuitry integrates:
-a filtering section for the protection against disturbances and interference’s,
-an feeding section,
-an acquisition state for the battery tension measurement,
-an acquisition state for the charging current measurement through a shunt sensor,
-a keyboard for the operation selection,
-two potency relais for the meter activation found on the battery charger.
The alimentation section consents to feed the control unit both with an auxiliary tension 24 Vac and with a
wide range from 24V to 96V nominals directly from the battery without the necessity of a manual selection.
The feeding stage foresees the protection circuits of entry and those of output current limitation.
•The optional circuitry carry’s out the following functions:
-real-time clock,
-external hardware watchdog,
-added security timer,
-USB communication interface,
-Volt/ Ammeter interface,
-n.1 relais exit,
-interface for n.4 entries of digital signals,
-interface for n.6 entries of analogue signals.
The real-time clock has the functions of a system clock that supplies a temporary reference useful for
associating a temporary position to the events and facilitate the memorisation, the recall and the analysis.
The external hardware watchdog is attained with an electronic circuitry external to the micro-controller and
dedicated capable to verify the correct functioning of the microprocessor. You add it to the existing watchdog
hardware circuit to increase global reliability of the controller unit.
The added security timer is attained with circuits dedicated completely independent from the hardware of
the micro-controller, and has the purpose of interrupting, the battery cycle, after 12 hours and in the event of
microprocessor malfunctioning, directly opening the command relais. In the event of an intervention the led
alarm present on the panel front turns on.
The USB communication interface allows to connect the battery charger to a personal computer by using
a standard USB communication cable. The communicating interfaces equipped of an applicable original
software that allows the programming and the setting of all the parameters of the machine, the calibration of
the measuring instruments volt/ampere-metrical put at the interface disposal two analogue signals of
communication wireless and not, the past data download and the functionality of analysis and reportage.
