CSV 409 A caravan charging system instruction manual
12
Issued: 20.02.2020
8050101 BA / EN
Conditions for the measurement:
F
Approx. 10 minutes after mains isolation without mains connection
F
12.6V battery voltage
F
Battery alarm OFF
F
All consumers switched off
F
12V main switch off
12V outputs
A maximum of 90% of the nominal cur-
rent
of the relevant fuse may be
drawn.
Caravan battery
Charging curve
IUoU
Final charging voltage
14.4 V
Charge current
28 A in the entire mains voltage range,
electronically limited, minus the
charge current into the towing vehicle bat-
tery
Voltage for float charge
13.7 V with automatic switchover
New charge cycle,
with battery voltage below 13.7 V
Switchover to main charging
with approx. 5 seconds delay
Main charge
I
Full charge
Uo
Trickle charge
U
4 h for lead--acid
16 h for lead--gel
Time
14,4
13.7
U
charge
V
Fig. 4
Example of the charge voltage behaviour with the CSV 409 A caravan charging sy-
stem
I
Main charge with maximum 28 A charging current, electronically limi-
ted, up to final charging voltage. The battery is now charged up to ap-
prox. 80%. Start of charge also for completely discharged batteries.
Uo Automatic changeover to full charge with constant 14.4 V. The duration
of the full charge phase depends on the type of battery and is configu-
red on the device: Lead-acid batteries, 4 hour, lead-gel batteries, 16
hours.
U
Automatic changeover to compensation charge with constant 13.7V. In
the compensation charge phase, the voltage at the output of the char-
ging module is constant. The battery is now charged up to approx.
95%.
Start of a new charging cycle by switching over to main charge, if the battery
voltage falls below 13.7V for more than 5 seconds when loaded. Start of
charge also for completely discharged batteries. The internal charger mo-
dule can also be operated without the caravan battery.
Current--carrying
capacity
Battery charging via
mains connector