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BDLC speed reverse Speed feedback failure

Question asked by Uladzimir Simankou on Nov 4, 2017

I'm working with STEVAL-SPIN3201 and Bull Running BR2804 1700 kv. The motor is controlled with MC Workbench. Engine startup and unidirectional speed regulation do work. But when I try to reverse the engine from the running state, Speed feedback error triggers. Even if the motor is running at low speed.

Actually reference speed doesn't change value to negative value (as it should I guess). 

Could somebody help me with it?