how to drive a 3-phased motor with Labview?

[RensteR]

Hello,

For the project of my senior year I have to drive 2 3-phased motors (2,5 kW and 3,7kW) and two steppermotors with Labview. But i'm not very familar with the program and I need some help.

The two steppermotors are needed to drive a XY-table. I think the two steppermotors can be driven with the "2-Axis Stepper Motor Controller (PCI-7332)". Do I also need to buy the "Motion Assistant SW for Motion Control Programming" for programming the movement of this table, or could this be done with the program Labview itself? The current steppermotors(STEBON)  for the XY-table are driven by a DIGIPLAN-drive. But since I can't fin anything on the net about STEBON-motors or DIGIPLAN-drives, I'm thinking about stepping over to the PCI-7332.

The second problem is that I can't find anything about how to drive the 3-phased motors. I guess I need an interface and a frequency inverter, but I'm not sure which frequency inverter is compatible whith Labview, or does this has to do with the choise of the interface? And if I have the interface + freq. inverter, do I need an extra Labview add-on for controlling these motors.

Many thanks,

Raf.

[J.R.]

Hi Raf,

Maybe you can call the NI Belgian Office to speak with someone. (Tel : 02/757.00.20)

you can specify to the receptionist it's a "pre-sales" question to be routed to the right departement.

Regards,

[Brian_Beal]

You should be able to use the motors and drives.  Digiplan is/was part of Parker.  What models do you have?  You may or may not need the motion controller.  As far as controlling an inverter drive, the easiest way would probably use a comms link.  Most of the drive manufacturers have Modbus comms available, and that works well with Labview.  ABB is a good choice here.

[RL]

I would like to build on RensteR's request
"For the project of my senior year I have to drive 2 3-phased motors (2,5 kW and 3,7kW) and two steppermotors with Labview. "

Controlling single phase motors with a solid state relay providing they do not need a soft start.  Can a 3 phase motor be controlled using three solid state relays? They could be controlled from one digital channel since each one will latch when in its zero state.  Is it possible to ramp up the speed and simulate a soft start device.  My 3 Hp motor will be driving a flywheel and will require an estimated 45 seconds to 1 minute to achieve full speed.  Can such a start be achieved by pulsing the power going to the motor?

Raymond