AEC Star T3 Service Manual
Also see for Star T3: Service manual
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ST3 1-3kVA Service Manual Rev.1Allis Electric Page 3 of total 12 September 20063. Troubleshooting3.1 Quick StartBefore any check of UPS, please check the components as listed in the following table. This action could help you findproblem quickly and make sure these components good or not first.Possible Circuit Block Coded Components Description Failure ModeBAT FUSE 1K/3K:F1/F2;2K:F1 Fuse OpenI/P FUSE (on PSDR) F3, Fuse Open2K/3K:D16, D17, REC021K:D10, D11, REC1Diode Short or openPFC Correction2K/3K:Q09,1K:Q14 IGBT C-E short or open2K/3K:Q04, Q05, Q06Q071K:Q4, Q6, Q10Q11MOSFET D-S short or openPush-Pull Booster2K/3K:D05, D06, D07, D081K:D12, D13, D14, D15Power Diode Short or openInverter 2K/3K:Q13, Q14, Q15, Q161K:Q12, Q13IGBT C-E short or openCharger module Q2 MOSFET D-S short or openD10,D11,D12,D13D15 Power Diode Short or openSPS module Q201 MOSFET D-S short or openD202,D203 Power Diode Short or openIf the fuse is open, replacing fuse only, DO NOT mean you have solved the problem. Generalspeaking, fuse open was caused by other failure of components; therefore, you must find thereal defective components and replace them, before restart the UPS. |
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