Operating Instructions Caravan-charging system CSV 416
9
Date: 30.05.2021
8050111 BA / EN
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Relay circuit ”+12V for ignition ON” (connector no.
10)
from terminal 15
Voltage when ignition ON
Fig. 3
Connector for towing vehicle power socket
Y
For the ”Automatic shutoff” and ”Towing vehicle battery standby current”
functions to be guaranteed in line with the following specifications, both
the 13-pin connector of the caravan, and the socket of the towing vehicle,
must be assigned as per EN 1648-1 (see Fig. 3).
Consumers are switched off (with the exception of these with a continual
supply, see Page 5) when the caravan is hitched to the towing vehicle and
the ignition is switched on (power on terminal 10 of trailer hitch TH). Consu-
mers can be switched on again at any time (the automatic disconnector
does not prevent this).
No standby current when the towing vehicle ignition is OFF, plus power
consumption of control electronics of refrigerator (see documentation from
refrigerator manufacturer and other consumers with a continual supply, see
Page 5); measurement taken when all consumers in the caravan are swit-
ched off.
For systems in which the CSV 416 caravan power supply is used, another
device monitors the leisure area battery voltage (such as the panel connec-
ted to the LIN bus). When the voltage is too low, this device must send a
control signal to the CSV 416, that disconnects all consumers from the
battery (12 V OFF and switching outputs 1 to 3 OFF).
If this battery monitoring function of the external device fails, and the leisure
area battery voltage falls to below 10.6V for longer than a minute, 12V OFF
and switch-off of switching outputs 1 to 3 are performed automatically by the
CSV 416.
Y
This monitoring function of the CSV 416 is regarded as an emergency
function when the rest of the system is operating erroneously.
An internal monitoring function ascertains whether a caravan battery is
connected. If yes, a charge process is performed as in Section 6.2. If no
caravan battery is connected, the device transitions to supply mode and a
constant voltage of 13.2V is applied at the outputs.
Automatic disconnector
Standby current
towing vehicle battery
Battery monitor
Monitoring of the
battery connection
