Dometic BUTTNER MT LB30 Instructions De Montage Et De Service page 17

Item in
fig. 2,
Designation
page 3
8 Sense BORD
9 Temp. Sensor
Display panel
Item in
fig. 3,
Designation
page 4
1 On/Off button
2 Indicator LEDs
Indicator LEDs on display panel
LED Status
Current On
(red)
Off
Batt. I On
(yellow)
Flashing
Flashing
slowly
Off
Description
Input for sense cable to
measure and control the
charging voltage at the
house battery
2 connections for tem-
perature sensor
Description
Charging current present;
brightness indicates the inten-
sity of the charging current
Charging current < 0.2 A
House battery is charged
• High temperature protec-
tion (> 50 °C)
• Only LiFePO4 batteries:
Low temperature protec-
tion (< –20 °C)
Only LiFePO4 batteries: Low
temperature protection
(< 0 °C)
House battery is discon-
nected from the charging
booster (safety switch)
LED
Battery full
(green)
Main
Charging
(yellow)
Batt. II
(yellow)
Power
(red)
4445103799
Status Description
On House battery fully charged
(100 %); U2 phase
Flashing Charging process in U1 phase
(lead batteries: < 75 %,
LiFePO4 batteries: < 90 %)
Flashing State of charge 75 – 100 %
slowly (lead batteries: > 75 %,
LiFePO4 batteries: > 90 %)
Off Charging process in I phase
On Charging process in
I/U1 phase
Flashing • Over voltage protection of
the house battery
(> 15.5 V)
• Only LiFePO4 batteries:
Temperature sensor is not
connected
Off Trickle charging (U2 phase)
Flashing Low voltage protection of the
starting battery
On Voltage present; booster
charging activated
Flashing • Safety shutdown (chapter
"Troubleshooting" on
page 23)
• Internal device failure
(overheating)
• Reversed polarity of the
house battery
17