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2.5 Checking
A) When the PV panels are connected and their output voltage is greater than 100 VDC but the AC grid
is not yet connected, the message on the LCD display produce the following messages in order: ”Ser
NO:xxx”->”xxxxxx”->”FW version”->”No AC connection’ and the LED will be red.
b) Close the AC breaker or fuse between PV-Inverter and grid. The normal operating sequence begins (it
take 60 sec).
c) Under normal operating conditions the LCD displays “Power:xxx.xW”.That is the power fed to the grid.
The LED turns green.
d) This completes the check.
2.6 SystemDiagram
A) PV Panel: Provide DC power to inverter.
B) Inverter: converts DC (Direct Current) power from PV panel(s) to AC (Alternating Current) power.
Because Inverter is grid-connected it controls the current amplitude according to the PV Panel power
supply. Inverter always tries to convert the maximum power from your PV panel(s).
C) Connection system: This “Interface” between Utility and PV-lnverter may consist of electrical breaker,
fuse and connecting terminals, see Appendix. To comply with local safety standards and codes, the con-
nection system should be designed and Implemented by a qualied technician.
D) Utility: Referred to as “grid” In this manual, Is the way your electric power company provides power to
your place. Please note that Inverter can only connect to low-voltage systems (namely, 220_230VAC,
50/60Hz).
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