Thank's for your answer.

I've seen this video. Problem is that my driver has diffirent pins order than this.

I managed to find some other specifications from seller (Closed loop motor driver-HBS86H - China Changzhou Longs Motor , diffirent from those from ebay) and rewiried encoder input. Now when I plug in power supply with just driver and motor(not connected to BoB), motor vibrates a little bit and then start to buzz. I find information on forum that buzzing when idle should be normal.

Then i connected driver to my BoB. When i pluged in power supply my PC and driver board turned off. I tried to turn it on again not connected to BoB and it buzz again so I think I didn't burn driver.

I'm suspecting that something is not right with in my connection between driver and BoB and that why alarm was on in the first place.

But I don't see problem in connection. I am feeding PUL+, DIR+, and ENA+ with 5v from the BoB, and connected PUL-,DIR- and ENA- to the BoB. Am I missing something ?