Part Number: TMS320F28069M
hi there is a post before:
TMS320F28069M: Holding motor at zero speed for lab12b
I am using instaspin motion lab12b for controlling an ACIM in an elevator application.
Motor has an electromechanical brake and in the application I need to open the brake first while running motor at 0 rpm. Then when I am sure that the brake is open, I give a speed reference. When there is an inbalance in load, algorithm cannot hold the motor at zero speed, motor goes to wrong direction. When I give speed reference greater than zero it starts to go in the desired direction.
How can I achieve to hold the motor at zero speed with Instaspin? Can I give some DC current to the motor or do you have another recommendation?
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Sensored FOC is a good choice for this application, you can use a dc current brake to keep motor to lock at a position, and then run as setting speed in next step.
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Yes this has resolved my issue. Thanks---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------:I have same issue , my application is e-boat . when boat float on wator ,there is flower under boat inverise . if we want start we must hold motor first ,then start to cw.I know use DC input motor . but how configurat it . does phase A and phase B input , phase C out ? use duty of PWM ?best regardhunk
