Innovative Circuit Technology Ltd.
17
Once the output voltage and current limit values are configured to suit the
connected battery and loads, switch on the BMM battery breaker 1, and battery
breaker 2 (if installed) to connect the backup battery string(s) to the system.
Switch on the LDM output breakers 1 to 4 (if installed) to energise any loads
connected to the Distribution Module outputs.
Battery Management Module
The Battery Management Module (BMMD) provides a convenient and safe way
to connect 1 or 2 matching battery strings to the MPS Ultra system. Dual high
current hydraulic-magnetic circuit breakers provide over current protection,
while an internal LVD contactor will disconnect the battery should it discharge
below a safe level. Internal battery current monitoring provides a full suite of
remote battery charge monitoring features.
The BMMD status screen indicates the Battery Voltage (Vdc), the combined
Battery Current (+ Adc for charging, -Adc for discharging), the approximate
battery State of Charge (SOC %), and a bar graph showing relative magnitude of
the total battery current. A battery graphic marked with
X
indicates the battery is
disconnected, replacing the SOC reading, as shown below.
The SOC% is estimated by counting the Ah flowing into and out of the battery
while knowing the nominal rated capacity of the battery (See
Battery Backup
Settings
Screen below to adjust the battery Ah capacity) The system resets the
SOC to 100% whenever it detects that the battery is at the rated Float Voltage
with minimal charge current for at least 24hr.
BMMD Settings (All Battery Types):
The module comes with factory default
settings loaded that should be configured to match the actual battery used in the
system.
WARNING
Always consult battery manufacturer's specifications when selecting battery
type. Incorrect battery type setting may damage your battery.
BMM Status Screen with
Battery-Disconnected
icon