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7. TEST THE INSULATED-GATE
BIPOLAR TRANSISTOR (IGBT)
In order to test the IGBT, set the multimeter to circuit continuity func-
tion (a beep is heard when the circuit is continuous) and then check
whether there is an electrical connection between the IGBT terminals.
Repeat the same procedure for all four IGBTs.
If there is an electrical connection (the meter beeps) between any IGBT
terminals, the IGBT is faulty.
Summary of Contents for 4VI515 Series
Page 3: ... 3 1 HOB FEATURES AND COMPONENTS ...
Page 13: ... 13 2 single coils 6 dual coils 5 single coils ...
Page 18: ... 18 9 2 Check if neutral conductor for L1 phase is connected correctly ...
Page 19: ... 19 9 3 Check if L1 phase is connected correctly ...
Page 20: ... 20 9 4 Check if L2 phase is connected correctly ...
Page 21: ... 21 9 5 Check if coils are connected correctly ...