Description Of Operation - Vetus BCC500 Bedienungshandbuch Und Installationsvorschriften

Description of operation

Inverter
The inverter con-
verts direct current
to alternating cur-
rent. Instead of a
simple square-
tooth shaped out-
put voltage wave
form, the Vetus inverter produces a trapezium-shaped wave
form, which allows most electrical equipment to operate without
interference.
Power MOSFETs (FET = Field Effect Transistor) are used as
switch elements, these in their turn are controlled by specially
developed electronics.
This design ensures a very efficient inverter; depending upon
the model and the power used, an efficiency of 83% up to 89%
is achieved.
A part of the loss is called no-load power consumption. This is
the power that the inverter itself uses when switched on but not
providing any power. The 'STAND-BY' switch is incorporated to
reduce this loss. An automatic system within the inverter switch-
es the inverter on at the moment a piece of equipment is
switched on. The no-load power consumption in 'STAND-BY' is
10% of the no-load power consumption in the 'ON' position.
However, if the inverter is not going to be used for some time, it
is recommended that it be completely switched off.
Charger
The Vetus battery
charger has a
charge character-
istic that can be
called I/U float.
BOOST PHASE
When dockside voltage is connected and the charger is 'ON', it
will automatically start to charge the batteries with an average
maximum current, see page 16.
EQUALIZE PHASE
As soon as the battery gas pressure is reached (14.2 Volts resp.
28.2 Volts) the charger switches to a lower current, whereby the
voltage remains at 14.2 Volts resp. 28.2 Volts. This is called an
I/U charge characteristic, and is essential for sealed batteries.
FLOAT PHASE
When the charge current has dropped to about 10% of the max-
imum charging current, the charge voltage is reduced to 13.5
Volts resp. 27.5 Volts; this reduces battery water consumption.
Protection
The inverter/charger is protected in a variety of ways, thus
ensuring reliable operation.
14
9.0109
Short Circuit
BCC500, BCC600, BCC1000, BCC1200, BCC1500 and BCC2000
If the 220 Volt output is short circuited, the inverter switches off
and the 'OVERLOAD' LED lights up. If the inverter is not oper-
ating, but the dockside power is short circuited at the inverter
socket, then the glass fuse at the operating panel will blow.
The 'AC INPUT' LED will go out, while dockside voltage will be
available on the boat mains. If the 12 Volt resp. 24 Volt charge
current short circuits before the charger is switched on, the
charger will not work. If the short circuit occurs during charg-
ing, the current will be limited to the maximum charging cur-
rent.
BCC1500 and BCC2000
An short cicuit inside the inverter/battery charger will blow the
knife blade type fuse or the panel mounted glass tube fuse or
both.
Overload/Overheating
If the inverter is overloaded the electronic protection will
becomes operational and will switch off the inverter.
The 'OVERLOAD' LED will light. With a slight long-term overload
the inverter can become overheated and will also switch itself
off until it has cooled down.
The 'TEMPERATURE' LED will then light up.
As a basic principle, the inverter cannot be overloaded, as it lim-
its the maximum charge current itself. However, if the ambient
temperature is too high, this can lead to overheating and the
overheat prevention device will operate. The 'TEMPERATURE'
LED lights up.
When it has cooled down, the equipment automatically turns
itself on again.
Battery Voltage too low
If the batteries are not charged enough and the voltage falls
below 10.5 Volts resp 22 Volts, the inverter will switch itself off to
prevent the batteries discharging too much. The 'INPUT ' LED
will light up.
Battery Voltage too high
If the voltage rises above 17 Volts resp 32 Volts, the inverter will
switch itself off.
Battery Terminal Reversal Protection
BCC500, BCC600, BCC1000 and BCC1200
If you reverse the positive and negative terminals of the bat-
tery, the inverter will not operate, but no damage will be
caused.
BCC1500 and BCC2000
If you reverse the positive and negative terminals of the bat-
tery, the inverter will find major damage.
Follow carefully the connection procedure as described under
'Installation', see page 11, to prevent these damage.
Precaution against damage due to reversing positive and neg-
ative terminals is guaranteed by the combination of the green
LED and the insertion of the knife blade type fuse afterwards.
Inverter / battery charger BCC500, BCC600, BCC1000, BCC1200, BCC1500 and BCC2000