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how to Decelerate motor correctly?

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Hi every one 

good day !

I am using HVKit F28027 control card (Project Lab03a)

I have a problem of Decelerating my motor,

when I set " gMotorVars.SpeedRef_krpm=0 "motor decrease it's speed after that (in 20 rpm) motor current increase and motor never stop and it has malfunction(it rotate CW and CCW slowly).!!

questions :

1. how to solve this  malfunction when the speed is near to zero.(I want my motor to completely stop).

2.as we know we have function for Acceleration

" CTRL_setMaxAccel_pu(ctrlHandle,_IQmpy(MAX_ACCEL_KRPMPS_SF,gMotorVars.MaxAccel_krpmps));"

do we have something for Deceleration?

thanks for attention

Dave.


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