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testing the IPM 6MBP15rh060

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Ahmed4444

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HI
it's my first time to use IPM(6MBP15rh060) ,and i need to make 3 phase inverter .i use microcontroller to generate 6 pulses shifting by 60 degree , 6N136 optocoupler to interface MCU with IPM , 3 resistance Y connected as a load and VDC =200V . but it didn't work and not give the correct waveform of the output. View attachment REH983a.pdf
1- i use the same circuit as in example page 55 except for 3 resistance Y connected as a load is it any thing i miss?
2- how can i confirm that IPM not damaged? how can i do some test procedure fo IPM?

thanks in advance
 
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It's difficult to confirm the IPM not damaged. But in my experience, when large IGBTs are damaged, they burst with large sounds and lightnings.
You should start with low voltage. I usually start with VDC = 20V or lower from external DC Power supply.
After check all waveforms, increase DC Voltage.
 
in my 1st experiment on IPM i found some burst sound but i think it from optocoupler i found 3 of them was damaged after replacement i can't confirm IPM damaged or not is it any simple circuit can i test the IPM ? it is little expensive in my country
if i should replace the IPM what is the best module i choose 6MBP15rh060 or IM21400-1 or PM20CSJ060 ?
 
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Sorry, I use only IGBT modules (2in1 module), not IPM. I can't suggest other choise.

I had broken many IGBTs. May be, they turned on simultaneously with surge noise.
But I had never seen that optocouplers of drivers broke.
 
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