Dynaminc Braking on Victors

[Max Lobovsky]

I understand that one can short A and B on the jumper on the Victor to put it in "dynamic braking mode" As i have been told, this will have the speed control give enough power to the motor to prevent it from being backdriven. I have a couple of questions about this.

1. Does this affect normal speed controlling of the motor?
2. Does it work effectively in both directions of backdriving?
3. Is there a way to estimate about how much power it will draw to keep it still?
4. Will it be effective for a winch, as in will it have a quick enough response time to not let the winch slip too much before holding?

Thanks.