tbs electronics Expert Modular, Owner'S Manual

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If you wish to make any changes to the Main battery type or capacity afterwards, you can
always edit Functions F1.0 and F1.1 (see chapter 6.1).
The Setup wizard does not include any configuration steps for battery banks connected
to the B2 and B3 inputs. If your system does include a second or third battery, please
configure these manually using Functions F2 and F3 (see chapter 6.2 and 6.3).
After the Setup wizard has been completed, the Expert Modular will take a few seconds to analyze
your battery and estimate the nominal battery voltage as well as the current State of Charge (%). The
State of Charge readout will show a small animation while it is calculating.
!
When a lithium battery type is selected, only the nominal battery voltage will be
estimated. A
start value for the State of Charge is not given yet and represented by ‘ - -
%‘. A complete charge cycle is needed to obtain the exact State of Charge value.
!
For the highest accuracy, it is important that the battery is not being charged or
discharged during this analysis time!
When your battery system has a nominal voltage level other than listed in table 2, you need to
manually change this in Advanced Function A07.
Table 2 shows how the Expert Modular determines the nominal voltage of your battery bank. This
table is valid for all three battery bank inputs. Please note however, that B2 and +B3 do not
support LiFePO4 batteries. As you can see in table 2, the estimated number of battery cells are also
mentioned. Except for individual 2V lead- or 3V Lithium cells, all batteries contain a number of
internal cells in series. A 12V lead acid battery for example, contains 6 cells internally. The Expert
Modular needs to know the number of cells, since its calculation algorithms are cell based.
Table 2
Measured voltage Assumed nominal voltage for
lead based battery
(number of internal cells)
Assumed nominal voltage for
LiFePO4 based battery
(number of internal cells)
Vbatt < 5.0V - -
5.0 < Vbatt < 7.5V 6V
(3 cells)
6V
(2 cells)
7.5 < Vbatt < 10.0V 6V
(3 cells)
9V
(3 cells)
10.0 < Vbatt < 15.0V 12V
(6 cells)
12V
(4 cells)
15.0 < Vbatt < 20.0V 18V
(9 cells)
18V
(6 cells)
20.0 < Vbatt < 30.0V 24V
(12 cells)
24V
(8 cells)
30.0 < Vbatt < 40.0V 36V
(18 cells)
36V
(12 cells)
VBatt > 40.0V 48V
(24 cells)
48V
(16 cells)