Freedom Lite Marine Installation Manual Revision 3
P a g e
21 | 24
BMS is protecting the cells from further discharge.
Ensure that there is no chance of load being applied
to the battery by isolating the AC output from the
inverter. Ensure that the AC input to the inverter is
live so that the charger may begin charging the
battery after you switch it on. Alternatively, an
MPPT can be used for this immediate charge if there
is sunshine at the time. An alternator may also be
used. This charge should increase the battery
voltage to prevent further tripping. This problem
should not occur if the inverter control is working
properly.
If this does not work, it is because the battery has
been discharged too deeply and will need to be
reset remotely by Freedom Won by accessing your
Windows PC connected to the battery. The PC must
have Anydesk installed, and you will need the RS232
adapter to connect the PC to the battery. Please
contact Freedom Won.
If the SoC is at 100% it is most likely the tripping is
because the battery has been over charged. Leave
the battery for an hour and then try again. Ensure
that all charging sources are disconnected or
disabled. Once you have got the battery on again
investigate what is wrong with the setup that is
causing the overcharge events.
5
I have switched off the main battery
breaker switch to prevent discharge
of the battery, but the SOC display
lights are still on.
The BMS and SoC display receive power directly
from the battery and therefore the “OFF” Button
must be pressed to switch off the internal
electronics.
6
The inverter will not come on even
though the inverter switch is
selected to ‘on’.
The enable command may not be coming from the
BMS or the communication/control cable may not
be properly connected to the inverter, or the
inverter may not be properly configured to deal
with the enable command. If you are using a hard-
wired interface (using a relay) you can confirm
whether the enable relay is energised. If not, then a
battery parameter is outside of limits, most likely
SoC or cell voltage, or there is a critical error on the
BMS. Try resetting the BMS. If this does not work
charge the battery and the inverter control should
be re-enabled. If the relay is energised, then the
problem lies with the control wire connection to the
inverter or the inverter setup. Refer to the inverter
manual or setup information to ensure that you
have connected and set up the inverter properly.
If you are running on a CAN Bus control with a
compatible inverter and you are not observing the
correct enable response from the inverter check
