AJ
M
ODELS WITH BUILT
(
– S)
OPTION
The solar charge controller built in option in the
inverter AJ is meant for charging a battery
exclusively from a solar generator.
Any other source of current needs an external
and suitable charge controller.
The maximum (open) voltage of the solar
generator is 23 V for 12 V systems, 46 V for 24 V
systems and 90 V for 48 V systems.
Connect firstly the inverter to the battery before
connecting
the
adjustment mode is an I/Uuo ("floating") shunt
and it guarantees optimal charge conditions
along the battery lifetime.
The yellow indicator displays the functioning
mode.
Illuminated: The solar charge is at its maximum.
Not illuminated: the solar generator is not
connected or the battery is fully charged, or
the solar generator does not get solar
irradiation.
Blinking: The battery is more than 95% charged
and the charger is in "floating" mode to
complete the charge. The blinking frequency
varies as per the capacity of the battery and
the power of the solar generator.
C
ONNECTION OF THE MODULES
On AJ 2100-S/2400-S inverters, a preinstalled cable (2 x 6mm2) replaces the terminals.
Wiring should be done through a connecting box.
Positive (+) pole to the brown or red cable
Negative (-) pole to the blue or black cable
Examples
12
-
IN SOLAR CHARGER
solar
generator.
AJ 2100/2400-S
U
13V/26V/52V
I
2h
NOTE:
Since
integrated in the AJ is of PWM type, it is
necessary to use 36 or 72 cell PV modules (12V
or 24V respectively). All other types of PV
The
modules require an MPPT charge controller (i.e
VarioTrack or VarioString).
ATTENTION: The 48V AJ's solar charger accepts
input voltages on the solar input between the
battery voltage and 90V. Please note that 90V
is the maximum admissible voltage at any
temperature (the voltage increases at low
temperatures).
At voltages above 60V, the whole solar system
must be installed according to protection class II.
V3.4.0
STUDER Innotec SA
14,4V/28,8V/57,6V
2h
the
solar
charge
13,5V/27V/44V
Ubatt
I pv
controller