Freedom LiTE Installation Manual Revision 14
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Fig 5.1 “ON” and “OFF” Buttons
7.
Settings Required for Setting up Inverters and Charge
Controllers
The maximum and continuous discharge currents for the respective models are provided in
Table 2.1. For charge current settings refer to the charge current limit. An average
recommended charge current is one third of the continuous rating of the battery. The
combination of the mains charger and the Solar Charge Controller (SCC) must not exceed
the maximum continuous charge current; this must be specifically checked.
The voltage settings for the Freedom LiTE range of nominally 52V batteries are as follows:
•
Minimum (cut off)
–
47V (the LiTE should never reach this low voltage but is it good
to have this set as a redundancy protection measure.
•
Low Battery Voltage Warning (if applicable, often used to revert to grid power in
increased self-consumption applications because it approximates 30% SoC)
–
51V
•
Max Charge Voltage
–
55,8V (Bulk, Absorption and Float are all set to this value)
For non-CAN interfacing inverters a voltage can also be set according to user requirements
on the inverter depending on how much battery energy may be used before grid power will
take over from the battery (if it is available). It should be determined based on how much
battery SoC is desired as a minimum to ensure adequate capacity to handle a grid outage or
load shedding. The daily cycling depth is also a consideration for the user in terms of battery
service life.
The recommended voltage for forcing the inverter back to grid power in a self-consumption
setup is:
•
52,0V for approximately 60% DoD
