Easun IGrid SS 3KW Plus - Default Chapter; Table of Contents

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Table of Contents

1. General Information ................................................................................... 3

1.1 Getting start ............................................................................................................ 3

1.2 Important Safety Instructions.................................................................................. 3

2. Electric Specifications ............................................................................... 5

AC input data ......................................................................................................... 5

PV input data ......................................................................................................... 5

Grid Feeding data.................................................................................................. 5

Battery mode output data ...................................................................................... 6

Overload capability ................................................................................................ 6

Short circuit ........................................................................................................... 7

Battery ................................................................................................................... 7

Charger.................................................................................................................. 7

3. Functional Block ........................................................................................ 9

4. Working Principle of the Major Functional Block ................................. 11

4.1 Switch Power Supply ............................................................................................ 11

4.2 Boost circuit .......................................................................................................... 12

4.3 Inverter.................................................................................................................. 12

4.4 Charger/Discharger .............................................................................................. 13

4.5 EMI Board ............................................................................................................. 13

5. Function explanations for each PCB ..................................................... 15

5.1 MAIN board .......................................................................................................... 15

5.2 CNTL board .......................................................................................................... 16

5.3 BAT board ............................................................................................................. 16

5.4 COM board ........................................................................................................... 17

5.5 PANEL board ........................................................................................................ 17

5.6 CHG CNTL board ................................................................................................. 18

5.7 DISCHG CNTL board ........................................................................................... 18

5.8 SPS board ............................................................................................................ 19

6. Interface .................................................................................................... 20

7. Trouble Shooting ..................................................................................... 22

7.1 LCD Panel Display Pattern Definition .................................................................. 22

7.1.1 Trouble shooting for warning icon in LCD display ..................................... 22

7.1.2 Trouble shooting for fault codes in LCD display ........................................ 23

7.2 Repair ................................................................................................................... 24

7.2.1 Basic Instruments and tools ....................................................................... 24

7.2.2 Quick Start .................................................................................................. 24

8. Test Step ................................................................................................... 29