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Freedom LiTE Installation Manual Revision 14
P a g e
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2.
Battery has been discharged to critically low
level
–
remove all potential loads from the
battery and switch off the inverter(s). Then try
to switch on the BMS.
3.
Battery has been charged to critically high
voltage level
–
usually leaving the battery for an
hour will allow the cell levels to drop down
within acceptable levels and allow the BMS to
be switched on again.
4.
Hold the ON button for at least 5 seconds.
5.
If the BMS still does not switch on, please
contact Freedom Won or Authorised Distributor
4
The main breaker switch keeps
tripping each time I attempt to
switch it on
There are several potential causes:
1.
The Battery Management System has not been
switched on. The ON button must be pressed for
5 seconds. On release the SoC Display must
remain illuminated.
2.
High inrush current on certain inverters
–
First
preference is to pre-charge the DC bus by
switching on the solar charge controllers if
present and in daytime. If this is not possible
switch on the AC feed into the inverter and
switch on the inverter. Some makes will then
pre-charge the DC bus. You can also use a pre-
charge resistor for this. If this does not work
after the second attempt investigate the other
options.
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 2V
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