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DC drive or AC drive?

DC drive or AC drive?

DC drive or AC drive?

(OP)
What are the an advantages/disadvantages of using a DC drive/DC motor combination vs. a sensorless vector AC drive/AC motor combination?

I have a choice to use either combination on a system we are upgrading.  Can anyone offer any opinions or advice?

Thanks,
Joey.

RE: DC drive or AC drive?

DC should be more expensive and with higher maintenanance.

DC will provide higher torque, if the application demands such.
What are the HP,speed and cycle of the application?

RE: DC drive or AC drive?

Below 2HP, DC is going to be less expensive in most cases.
Any other comparison requires more information about the application.

"Venditori de oleum-vipera non vigere excordis populi"


RE: DC drive or AC drive?

Suggestion: I concur with the previous posting that more information is needed, e.g. motor size, application description, voltage level, kind of power supply and its availability, etc.

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