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Belcanto/Trecento - 10/11 - Ausgabe 07/10 - 1976844 - BUE-0042-06EN
Electrical system
8
8.5.3
Charging procedure for the living area battery
Power operation
If the mains connection has been made, the EVS works as a power supply
during mains operation. The EVS has an electronic protection against incor-
rect polarity. The charging current is only supplied if the battery is correctly
connected and a minimum voltage of 1.5 V is present. During the charging
process, the battery voltage is monitored continuously using the B+ measure-
ment connection.
Until a battery voltage is just under the gassing voltage, it is charged with the
maximum constant current. After this, the EVS charges with continuously
decreasing voltage until the gassing voltage is attained. The charging proce-
dure is performed according to the charging characteristics under low power
loss.
If the battery has attained its gassing voltage and the charging current has
sunk to under a particular value, the EVS automatically switches to a float
charge with a constant voltage of 13.8 V.
The main charging process begins anew, when the float charge current raises
above 3 A.
Mobile operation
In mobile operation, the EVS detects whether the alternator is running using
the cable of contact 9 on the coupling plug. The voltage of the starter battery
is determined using a comparative measurement. If the voltage of the starter
battery is greater than 13 V, the voltage regulator continues to regulate the
output voltage to the living area battery to 14.2 V and enables fridge operation.
If the voltage of the starter battery falls below 13 V, the voltage regulator
switches the living area battery and the refrigerator off. This prevents the
starter battery from becoming completely discharged by the living area battery
or the refrigerator.
The starter battery can still be used to start the vehicle.
Panel LT 232
The 12 V power supply of the living area can be switched on and off and the
charging condition of the living area battery can be checked via the panel. The
"TANK" rocker switch and the associated LEDs have no function.
12 V main switch
The 12 V main switch (Fig. 91,6) switches the 12 V power supply of the living
area on and off.
Switching on:
Push "12 V" rocker switch (Fig. 91,6) to the left: The 12 V living area power
supply is switched on. The 12 V indicator lamp (Fig. 91,7) lights up in
green.
Switching off:
Push "12 V" rocker switch (Fig. 91,6) to the right " ": The 12 V living area
power supply is switched off. The 12 V indicator lamp (Fig. 91,7) goes off.
Fig. 91
Panel
Summary of Contents for Trecento 2011
Page 2: ...Belcanto Trecento 10 11 Ausgabe 07 10 1976844 BUE 0042 06EN Instruction manual ...
Page 10: ...10 Belcanto Trecento 10 11 Ausgabe 07 10 1976844 BUE 0042 06EN Introduction 1 ...
Page 40: ...40 Belcanto Trecento 10 11 Ausgabe 07 10 1976844 BUE 0042 06EN Pitching the caravan 5 ...
Page 76: ...76 Belcanto Trecento 10 11 Ausgabe 07 10 1976844 BUE 0042 06EN Gas system 7 ...
Page 140: ...140 Belcanto Trecento 10 11 Ausgabe 07 10 1976844 BUE 0042 06EN Sanitary fittings 10 ...
Page 184: ...184 Belcanto Trecento 10 11 Ausgabe 07 10 1976844 BUE 0042 06EN Troubleshooting 14 ...
Page 188: ...188 Belcanto Trecento 10 11 Ausgabe 07 10 1976844 BUE 0042 06EN Technical data 16 ...