Sungrow SG125HX, User Manual

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5.7 DC Cable Connection
Danger of electric shock!
The PV array will generate lethal high voltage once exposed to sunlight.
Make sure the PV array is well insulated to ground before connecting it to the
inverter.
Risk of inverter damage! Observe the following requirements. Failure to do so
will void guarantee and warranty claims.
•
Make sure the maximum DC voltage and the maximum short circuit current
of any string never exceed inverter permitted values specified in "Technical
Data".
•
Mixed use of different brand or model of PV modules in a PV string or a
compromised PV string design composed with PV modules from rooftoops
of different orientation may not damage inverter but will cause system bad
performance!
5.7.1 PV Input Configuration
•
As shown in the figure below, the inverter is provided with multiple PV inputs: PV
inputs 1~6; and each PV input is designed with an MPP tracker.
•
Each PV input operates independently and has its own MPPT. In this way, string
structures of each PV input may differ from each other, including PV module type,
number of PV modules in each string, angle of tilt, and installation orientation.
•
Each PV input area includes two DC inputs DC1 and DC2. For the best use of DC
power, DC1 and DC2 should be the same in PV string structure, including the type,
number, tilt, and orientation of the PV modules.
User Manual 5 Electrical Connection