How to power a motor using labview DAQ output signal

[MrCoolMan]

The power from labview is not enough to move a decent-sized motor (works with tiny one). Is there any electrical component/device that I can use to sort of increase it (something in between output from labview and the motor)?

Thanks

[Buechsenschuetz]

LabView is a software and does not supply any physical signals. To generate physical signals you need an interface board, NI has plenty of them which can be controlled via LabView. Anyhow, as you mentioned, digital i/o interfaces can handle currents in the mA range only. I think the best way to control motors via LabView and an interface board is using an additional relay driver board. Since relay contacts only switch power and do not supply any power you will need an external power supply matching the voltage and current specs of the motor.

[Jochen]

You might also want to have a look at NI's specific offerings for motion control. Depending on your control requirements you may need a real-time system or a dedicated motion control board to get deterministic and smooth control behavior.

Kind regards,

Jochen Klier

National Instruments