Dometic BUTTNER MT LB30 Instructions De Montage Et De Service page 16

The charging booster can be adapted to different
battery types via DIP switches (see chapter "Setting
the charging program" on page 21).
The temperature sensor monitors the battery tem-
perature during the charging process (see chapter
"Temperature sensor" on page 18).
The charging booster is equipped with a remov-
able display panel for remote control.
The charging booster offers the following func-
tions:
• Microprocessor-controlled, temperature-com-
pensated IU0U charging programs for various
battery types
• Auxiliary charging output for the starting battery
• Buffer operation: Compliance with the charging
characteristics even when the battery is charged
with consumers connected
• On-board mains suppression filter: Ensures par-
allel operation of the charging booster with
other charging sources, for example mains sup-
ply chargers, solar systems or generators
• Automatic compensation of voltage loss caused
by the charging cable length (house battery)
The charging booster has the following protective
mechanisms:
• High voltage protection
• Low voltage protection
• High temperature protection
• Low temperature protection (only LiFePO4 bat-
teries)
• Battery overcharge protection
• Reverse current protection
• Protection against short circuit
• Reverse polarity protection (only for house bat-
tery connection)
16
Description of the device
Item in
fig. 1,
Designation
page 3
1 Display panel
2 DIP switches battery type and functional
settings
3 DIP switch charging current
4 Rubber feet
5 Connections and controls
6 Temperature sensor
Connections and controls
Item in
fig. 2,
Designation
page 3
1 START–
2 START+
3 Sense START
4 D+/ Kl. 15
5 EBL Start/IN
6 BORD–
7 BORD+
4445103799
Description
Connection to negative
pole of 12 V/ 24 V starting
battery
Connection to positive
pole of 12 V/ 24 V starting
battery
Input for sense cable to
measure and control the
charging voltage at the
starting battery
Input for D+ signal of the
alternator or ignition lock
signal (terminal 15)
Input for sense cable to
display the charging volt-
age at the starting battery
Connection to negative
pole of 12 V/ 24 V house
battery
Connection to positive
pole of 12 V/ 24 V house
battery