Dometic Buttner MT BCB 30/30/20 IU0U Instructions De Montage Et De Service page 29

Selecting the function for the
TR terminal
I
NOTE
Select the function for TR terminal
depending on the connection variant.
➤Slide the DIP switch (fig. 2 3, page 3) to the
position shown in the table below to set the
function for TR terminal.
DIP switch
Connection variant
position (gray)
C1
Note: Function selection is
required for connection variants
with existing central electrical sys-
tem equipped with an integrated
cutoff relay. To prevent an interrup-
tion of the on-board supply, the
TR terminal is switched to the
D+ signal with a time delay of 10 s
according to the signal from the
integrated cutoff relay. In addition,
the TR terminal is switched off
when D+ falls below 6 V.
D
Note: Function selection is
required for connection variants
where the power consumption in
driving operation is higher than the
charging power, as the TR con-
nected load relay is switched load-
dependent (lead batteries) or tem-
perature-dependent (LiFePO4 bat-
teries).
Limiting the AC input current (for mains
charging)
➤Slide the DIP switch (fig. 2 3, page 3) to the
position shown in the table below to limit the AC
input current.
DIP switch
position (gray)
Reducing the current consumption from
the starter circuit in booster operation
I
NOTE
Depending on the charging phase (see
chapter "Battery charging function" on
page 20), the current consumption of the
battery control booster from the starter
circuit can be higher than the charging
current for the house battery during driv-
ing. Reduce the current consumption:
• To relieve a low-power alternator
• To compensate for under-dimen-
➤Slide the DIP switch (fig. 2 3) to the position
shown in the table below to reduce the current
consumption from starter circuit in booster oper-
ation.
DIP switch
position (gray)
4445103619
Function selection
All set charging currents (see chap-
ter "Setting the charging program"
on page 26) are reduced by 25 %:
• 20 A is reduced to 15 A
• 30 A is reduced to 22.5 A
• 40 A is reduced to 30 A
The charging current corresponds
to the set values (see chapter "Set-
ting the charging program" on
page 26).
sioned wiring on the vehicle side
between the starting battery and the
central electrical system.
Function selection
The current consumption is
reduced by about 25 %.
The battery control booster oper-
ates at full power.
29