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V201608A
Table of contents
1. General information .............................................................................................................................................. 3
1.1 Getting start ................................................................................................................................................. 3
1.2 Basic topology introduction ....................................................................................................................... 3
1.3 Inverter family.............................................................................................................................................. 4
1.4 Overview the inverter ................................................................................................................................. 4
1.5 PCB overview.............................................................................................................................................. 5
2. Troubleshooting .................................................................................................................................................... 7
2.1 How to do ..................................................................................................................................................... 7
2.2 Check the fault information ....................................................................................................................... 7
2.3 Fault condition ............................................................................................................................................. 7
2.4 Test step ....................................................................................................................................................... 8
3. Checking and measuring guide .......................................................................................................................... 9
3.1 Check the battery side components ........................................................................................................ 9
3.2 Check the bus side components ............................................................................................................ 16
3.3 Check the buck circuit .............................................................................................................................. 18
3.4 Check the INV full bridge ........................................................................................................................ 20
3.5 Check the PWM SCC board ................................................................................................................... 22
3.6 Check the MPPT SCC board .................................................................................................................. 23
4. Disassembling guide .......................................................................................................................................... 24
4.1 Open the case ........................................................................................................................................... 24
4.2 Remove the control board ....................................................................................................................... 25
4.3 Remove the fans. ..................................................................................................................................... 26
4.4 Remove the MPPT board. ....................................................................................................................... 28
4.5 Remove the main board. ......................................................................................................................... 29
5. Cables connection .............................................................................................................................................. 31
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