Pv Array Requirements - Offgridtec MPPT Pro Duo Bedienungsanleitung

2.2 PV Array Requirements

(1)Serial connection(string) of PV modules
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 MPPT controller, the series number of different types of PV modules can be calculated.
The below table is for reference only.
12V/24V-30A-100V
System voltage
12V
24V
System voltage
12V
24V
NOTE: The above parameter values are calculated under standard test conditions
(STC(Standard Test Condition): Irradiance 1000W/m
(2)Maximum PV array power
The MPPT controller has the function of charging current/power-limiting, that is, during the charging process, when the
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 PV modules. The actual operation of the PV
array is as follows:
Condition1,
Actual charging power of PV array ≤ Rated charging power of the controller
Condition2,
Actual charging power of PV array ≤ Rated charging power of the controller
When the controller operates under"Condition1" or "Condition2", it will carry out the charging as per the actual current or
power; at this time, the controller can work at the maximum power point of PV array.
WARNING: When the power of PV is not higher than the rated charging power, but the maximum open-circuit voltage
of PV array is more than 60V(DR**06N-DDB/DDS)/100V(DR**10N-DDB/DDS)(at the lowest environmental temperature),
the controller may be damaged.
Allgemeine Informationen
Offgridtec GmbH
Landshuter Str. 141 – 143
84307 Eggenfelden
WEEE-Reg.-Nr. DE37551136
Offgridtec MPPT Pro Duo
36cell Voc＜23V 48cell Voc＜31V
Max. Best
4 2
4 3
72cell Voc＜46V 96cell Voc＜62V
Max. Best
2 1
2 1
2
Kontaktinformation
Tel: 08721-7786187
Email: info@offgridtec.com
Web: www.offgridtec.com
GFR: Christian & Martin Krannich
54cell Voc＜34V
Max. Best Max.
2 1
2 2
Max. Best
1 1
1 1
, Module Temperature 25 ℃, Air Mass 1.5.)
Konto Sparkasse Rottal-Inn
Konto: 10188985
BLZ: 74351430
IBAN: DE69743514300010188985
BIC: BYLADEM1EGF (Eggenfelden)
60cell Voc＜38V
Best Max.
2 1 2
2 2 2
Thin-Film module
Voc＞80V
1
1
Sitz und Amtsgericht
HRB: 9179 Registergericht Landshut
Steuernummer: 141/134/30045
Ust-IdNr: DE287111500
Gerichtsstand: Mühldorf am Inn
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