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27th January 2013, 05:26 PM #16Senior Member
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Yep - a bit like a cross between a bi-polar transistor and a MOSFET. (IGBT stands for Insulated Gate Bipolar Transistor.)
Does the part have to be removed to test for shorts, because if not, then I can do that fairly easily?
Unfortunately, without a schematic, it can be near impossible to work out what's connected to what on modern multi-layer PCBs and sometimes even what individual parts are.
Edit: I assume it's the (U,V,W) motor outputs you're referring to, but are the other, (250VAC, 30VDC, 24VDC and frequency), outputs working?
N.B. Do the resistance tests with the power disconnected, or some of the smoke might escape from the DMM, making it useless.
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27th January 2013 05:26 PM # ADSGoogle Adsense Advertisement
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27th January 2013, 06:13 PM #17
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