Freedom Lite Home and Business HV Installation Manual Revision 1
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3.
Short circuit on the DC Bus or faulty inverter or
MPPT causing high currents
4.
In a system with multiple Lites in parallel the
reason could be that the battery you are trying
to switch on is at a different voltage to the
others – the voltages must be similar (within 1V
of each other) on all batteries when switching
them onto a common DC bus.
If none of the above solve the problem, you will need to
contact Freedom Won or your authorised installer for
assistance with this issue.
It will be necessary to establish the reason for the error
before continuing with normal operation of the system.
Repeated tripping is damaging for the breaker.
5
After resetting the BMS the main
breaker still will not stay up.
This is most likely because the battery is fully discharged
and the 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. 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
TeamViewer installed and you will need the RS232
adapter to connect the PC to the battery. Please contact
Freedom Won.
6
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.
7
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 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 running on a CAN Bus control with a
compatible inverter and you are not observing the
correct enable response from the inverter check that the
CAN High and CAN Low wires are connected properly
(ensure that you have the High and Low the right way
around and that you have connected the two end of line
120 Ohm resistor in the applicable places. If this is not
the problem then you need to confirm that you have the
right CAN profile programmed onto the BMS for the
