SPF 5000 ES Service manual
Service manual
Table of contents
1. General information ........................................................................................................................................................ 2
1.1 Getting start ......................................................................................................................................................... 2
1.2 Important safety instructions ............................................................................................................................. 2
2. Functional block .............................................................................................................................................................. 3
3. Working principle of the major functional block .......................................................................................................... 4
3.1 Switch Power Supply .......................................................................................................................................... 4
3.2 DC TO DC dual converter (Full bridge converter) .......................................................................................... 5
3.3 Inverter (Full bridge) ........................................................................................................................................... 5
3.4 Buck converter .................................................................................................................................................... 6
4. Functional explanations for each PCB ........................................................................................................................ 7
4.1 Main board ........................................................................................................................................................... 7
4.2 CNTL board ......................................................................................................................................................... 8
4.3 MPPT board ......................................................................................................................................................... 8
4.4 COMM board ....................................................................................................................................................... 8
4.5 BMS board ........................................................................................................................................................... 9
4.6 MOV board ........................................................................................................................................................... 9
4.7 SWITCH board .................................................................................................................................................. 10
4.8 PARALLEL_COM board................................................................................................................................ 10
5. Troubleshooting ............................................................................................................................................................. 12
5.1 Fault Reference Code ...................................................................................................................................... 12
5.2 Warning Indicator .............................................................................................................................................. 13
5.3 Trouble shooting according to fault indication .............................................................................................. 15
5.4 Quick start .......................................................................................................................................................... 17
6. Test Step ........................................................................................................................................................................ 20
7. Key components location ............................................................................................................................................ 21
7.1 Main board ......................................................................................................................................................... 21
7.2 MPPT board ....................................................................................................................................................... 24
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