Publicité
Les langues disponibles
Les langues disponibles
Functions
(at the Main / Board Battery
„Board I"):
If solar power is missing (at night), readiness
for service of the controller will be indicated by
short flashing of the LED (light-emitting di-
ode) "Charge".
MT 150-PP and 230-PP: In any operating
state, a totally discharged battery is indicated
by means of the LED
"Batt. Low" (low voltage). Now the battery
has to be recharged as soon as possible (dis-
connect the consumers)!
MT 350-PP and MT 550-PP: The LED "AES/RE"
will be lighting in case of excess solar power,
output "AES/RE" is active.
An evenly flashing LED "Charge" indicates a
possible failure in the system: Controller over-
heated or failure found during self-test, bat-
tery too hot (>50 °C) when using the battery
temperature sensor.
As soon as the solar power is again sufficient,
the LED "Charge" will be lighting and the
charging process starts.
At the same time, the brightness of the LED
"Charge" is a measure for the converted solar
power: The brighter, the more of the existing
(also little) solar power will be supplied.
1. Maximum charging current (Phase I) in the
lower and mean voltage range of the bat-
tery up to the beginning of the phase U1.
The total solar power will be supplied to
the battery for quick charging. During the
phase I, charging will be effected up to ap-
prox. 75 to 80 % charging state.
2. During the following phase U1 the battery
voltage will be kept constant on a high level
close to the gassing limit, the battery deter-
mines the charging current according to its
charging state, the high battery capacity will
be charged and the LED ">80%" is lighting.
32
The solar controller will control the
charging time as well as the charging volt-
age and will switch automatically to the
following phase U2=trickle charge. If the
battery has already been charged fully, the
charging time will be reduced accordingly.
3. During the phase U2 (Full charging/trickle
charge) the battery will be kept on its
charging level. Only thecompensating re-
charging current is flowing being required
for conservation of the full charge, which is
determinedby the battery. The duration of
that phase is not limited, the LED „Batt.
Full" is lighting intensively.
4. Now, almost the entire solar current is
available to the consumers.
Switching back to the phase I or U1 is effected,
if the battery had been subject to load for an
extended period, or if the solar controller
switches to stand-by mode after sunset.
If a temperature sensor is used for the battery,
the voltage values will be slightly higher in
case of low outside temperatures, while they
will be slightly lower in case of high outside
temperatures.
The output for the „Battery II" (START) will be
working with reduced voltage and charging
current rates. Thus, the valuable solar power
will be supplied to board/solar battery „I" be-
ing more suitable. However, the starter battery
„II" will be kept in a condition, that starting
will always be possible, even in case of longer
stop periods (e. g. in winter).
Publicité
