Offgridtec MPPT Pro Duo Bedienungsanleitung Seite 29

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2.2 PV Array Requirements
(1)Serial connection(string) of PVmodules
As the core component of the solar system, the controller could be suitable for various types of PV modules and maximize
converting solar energy into electrical energy. According to the open circuit voltage(Voc) and the maximum power point
voltage(Vmpp) of the MPPTcontroller, the series number of different types of PV modules can be calculated.
The below table is for reference only.
12V/24V-30A-1 OOV
System voltage
12V
24V
System voltage
12V
24V
NOTE: The above parameter values are calculated under standard test conditions
(STC(Standard Test Condition): Irradiance 1OOOW/m2, M odule Temperature 25 oc, Air Mass 1.5.)
(2)Maximum PV array power
The MPPT controller has the function of charging current/power-limiting,
charging current or power exceeds the rated charging current or power, the controller will automatically limit the charging
current or power to the rated range, which can effectively protect the charging parts of the controller, and prevent
damages to the controller due to the connection of some over-specification
array is as follows:
Conditionl,
Actual charging power of PV array
Condition2,
Actual charging power of PV array
When the controller operates undeffCondition1"
power, at this time, the controller can work at the maximum power point of PV array.
4 WARNIN G: When t hepower ofPV isnot h igher than therated charging power, but t hemaximum open-circuit
of PVarray is more than 60V(DR**06N-DDB/DDS)/1 OOV(DR**I O N-DDB/DDS)(at the lowest environmental temperature),
the controller may be damaged.
General information
Offgridtec GmbH
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Offgridtec
tec
36cell voc< 23V
Max Best
4 2
4 3
72cell voc<46V
Max Best
2
2
Rated charging power of the controller
Rated charging power of the controller
Contact
Tel: 08721 9199400
Email: info@offgridtec.com
Web: wvm_offgridtec.com
CEO: Christian & Martin
MPPT Pro Duo
48cell voc<31V
Max Best
2
2 2
96cell voc< 62V
Max. Best
that is, during the charging process, when the
or "Condition2", it will carny' out the charging as per the actual current or
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Krannich
54cell voc< 34V 60cell
Max. Best Max.
2
2 2
Thin-Film module
voc>80V
1
PV modules. The actual operation of the PV
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voc< 38V
Best
2
2 2
voltage
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