Descripción técnica
distribuidor de corriente de carga
32
The charging current distributors have two relay outputs which are used as follows:
z
Power relay to connect the starter and consumer battery
z
EasyCool:
Control relay to switch the inverter or the roof air conditioner on and off
CA-1000:
Control relay to switch the compressor on and off
5.1
Functional description for EasyCool roof air conditioners
– Please also refer to the circuit diagrams on página 3 to página 5 –
The light system voltage U
D+
is measured. If the voltage exceeds a variable voltage value
Ue (12.5 V - 14.0 V), the 30/87 relay contact of the power relay is closed. The starter
battery and the additional battery are therefore connected in parallel with low ohms and
are charged together by the light system.
Note
EC-1500 and EC-2000:
The on/off switch of the roof air conditioner is connected to the inverter via the
contacts of the ECL-75/ECL-100.
EC-2500 and EC-3000:
The roof air conditioners are only connected to the charging current distributor
via contacts I2 and I3.
Contact I2 is connected to I3 with U
D+
> Ue. If the light system voltage falls below
a variable threshold value Ua (10.5 V - 12.5 V), due to an increased load due to the roof
air conditioner, relay contact 30/87 is opened. Relay contact I2, I3, which interrupts the
connection between the on/off cable and the inverter, is also opened.
The roof air conditioner is switched off in this way. The light system now charges the
starter battery. If the caravan has a connecting cable between the two batteries, the
additional battery is also charged.
If the charging voltage of the light system U
D+
reaches the voltage value Ue, the power
relay and the control relay switch on again. The roof air conditioner starts again. If the
vehicle engine is not switched on, U
D+
= 0 V, relay contact 30/87 is open and relay contact
I2-I3 is closed. The roof air conditioner can be operated and only takes power from the
additional battery. If the battery voltage falls below U
batt
= 10 V, the inverter switches off.
_ECL-75_100.book Seite 32 Freitag, 22. Juli 2005 5:01 17
Summary of Contents for Mobitronic ECL-100
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