Powerflex 700 linked to external resistance

[eMpty]

I certainly don't agree with your last statement about ramp to stop not being as good as DC injection. If your drive is set up for sensorless or flux vector, you should be able to take the motor to zero speed and hold it there at full torque for at least a minute or two.

The problem with DC injection is that the stopping time will vary with different loads on the motor. Ramp to stop will always be the same stopping ramp regardless of load.

You may hit the point 'cuz i always use PowerFlex 700 to control Vertical Drop Lift & it handles the whole vehicle body running at 50 JPH or more.May the DC injection is more effective than Ramp in this situation.I do know nothing about it & when i call ppl in Rockwell China,Only i get is sth else,totaly unuseful.

 

[IMCS]

Thanks for all
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