Pv Input Configuration - Sungrow SG30CX User Manual

User Manual
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 com-
•
promised PV string design composed with PV modules from rooftoops of dif-
ferent orientation may not damage inverter but will cause system bad
performance!
The inverter enters standby state when the input voltage ranges between
•
1,000 V and 1,100 V. The inverter returns to running state once the voltage
returns to the MPPT operating voltage range, namely, 200 V to 1,000 V.

5.7.1 PV Input Configuration

As shown in the figure below, the inverter is provided with multiple PV inputs: PV in-
•
puts 1~n (SG30/33/40/50CX: n=3/3/4/5); 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.
5 Electrical Connection
35