spindle controll thru the vfd using MB2 and uc300eth no go

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Re: spindle controll thru the vfd using MB2 and uc300eth no

Postby tracar » Wed Jul 26, 2017 10:24 pm

Nope, its exactly as i typed,

The middle pin is gnd,
If i had b, and e mixed , the switch will not work
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Re: spindle controll thru the vfd using MB2 and uc300eth no

Postby dezsoe » Thu Jul 27, 2017 5:46 am

No! Base was OK (it's the input from MPG), but collector and emitter was mixed. Emitter should be on GND and collector should go to input pin. Am I right?
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Re: spindle controll thru the vfd using MB2 and uc300eth no

Postby tracar » Thu Jul 27, 2017 12:52 pm

Unless the chinese have marked this component incorectly. Im guessing its correct. Although it does have the characteristics of a BC817..
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