Freedom Lite Marine Installation Manual Revision 3
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pressing the “ON” button for 5 seconds and as
evidenced by the lights on the SoC display.
Remember to push the breaker lever down first
before switching it on by pushing the lever upwards.
3
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
will then pre charge the DC bus. If this is
also not possible (at night, off grid with no
generator), try to close the breaker twice in
quick succession
–
the second attempt must
be within a second, before the inverter
capacitors discharge again. This reduces the
inrush current on the second closing
attempt. If this does not work after the
second attempt investigate the other
options. Note that closing a breaker onto a
DC bus without pre charging is not
recommended.
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 vastly 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 solves 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 and resetting is
potentially damaging for the breaker.
4
After resetting the BMS the main
breaker still will not stay up.
First check whether the battery SOC is at 100% or
below 10% by holding in the ON button and
observing the SOC display.
If the SOC is at or below 10% the tripping is most
likely because the battery is fully discharged and the
