Freedom Lite Marine Installation Manual Revision 1
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from Freedom Won. Write access to the BMS profile is password protected, however users
and owners may request read only access.
As the user of a Freedom Lite there are some parameters that you may request to be
customised. The most important of which is the minimum SoC (or maximum DoD) that the
BMS may allow. The standard setting is 10% SoC (or 90% DoD), which is accompanied by the
standard 10 year or 4000 cycle warranty, whichever should first occur. Note however that it
is the responsibility of the installer and owner to ensure that on average the battery is not
discharged below 80% DoD on a daily or frequent basis i.e. only occasionally should a lower
DoD be allowed. The operating data is recorded by the BMS. Where life cycle is of
paramount importance the average DoD should be 50% with no change in the standard
warranty but an extended expected life of more than 7000 cycles or 20 years.
5.
Switching on the Lite
The Lite is fitted with an “ON” button. Press this button to switch on the BMS inside the
battery. Once the BMS has been energised you will observe the SoC display come to life
with the SoC level. Confirm at this stage that the error lite is not illuminated. If it is, contact
Freedom Won. If the Reduced Power light is illuminated, do not be concerned, it should
extinguish after the battery has been charged and placed into operation for a few hours.
Once the BMS has been energised remove the breaker cover and switch on the breaker by
pushing the breaker lever upwards (it may be necessary to push the beaker lever down first
to reset the internal mechanism). Ensure beforehand that you have secured the DC cables
to their proper locations and that the rest of the system is ready to receive battery voltage.
Note: On some inverters there is a large inrush current when switching on the DC supply.
It is important in this instance to pre-charge the DC bus prior to switching on to prevent
damaging the breaker when switching on
. This is achieved in three ways:
1.
Use a Solar Charge Controller (MPPT) to pre charge the DC Bus by switching it on and
connecting its solar panels
2.
Switch on the AC input to the inverter and switch on the inverter so that it can pre-
charge its capacitors
3.
Use a 60 to 100 Ohm 100W resistor with a pre-charge button to pre-charge the DC
bus followed by closing a parallel link.
If the breaker trips after attempting to switch it on it is because of an error on the BMS or a
system setup problem and Freedom Won or your authorised distributor should be
contacted to assist with diagnosing and clearing the error.
To switch off the DC output from the Lite, pull down the breaker lever. To switch off the
power to the BMS, press the “OFF” button situated to the right of the “ON” button. This will
also trip the breaker if it is still on at the time. The Lite must be switched off fully when not
in use to prevent self-discharge.
