ST3 6-10kVA Service Manual Rev.1Allis Electric Page 7 of total 12 September 20063. Troubleshooting3.4 Inverter Analysis6/10kVA-Inverter-Right side6/10kVA-Inverter-Middle side6/10kVA-Inverter-Left sideStep Checked components InstrumentfunctionReferenceValueFailure Mode(E,C) Ω 100kΩ Short1 Q201,Q202,Q203,Q204 (G,E) Ω 23.5kΩ Short or Open2 D201,D202,D203,D204,D205 Diode 0.36V 0V3 D210,D211,D212,D213 Diode 46Ω Open4 R201,R202,R208,R209 Ω 10Ω Open5 R203,R204,R210,R211 Ω 36Ω OpenAction ltem:Make sure the DC fuses with same rating as original ones for replacement. Otherwise,unpredictable danger might happen.

ST3 6-10kVA Service Manual Rev

Fault and Warning

Troubleshooting

PFC Analysis

Boost Analysis

Inverter Analysis

Charger Module Analysis

PFC / Boost / Inverter IGBT Driver Module Analysis

Final testing

AEC Star T3 Service Manual

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SPS Module Analysis

IGBT Driver Module Analysis

final testing

Step

Star T3

Star T3R