Serial 485 to Stepper Motor

[Rolin]

Hello,

I am new to LabVIEW and need to control a stepper motor.

My available resources are two serial 485 ports.

The stepper motor is a Vexta PK266-02A

Is this  possible and if so how should I go about this?

~Rolin

[Taki1999]

Do you also have a motor drive with a RS-485 interface?

[JÞB]

Not directly-  Stepper motors do not run off the power available from a serial port.  They operate from pulses of DC voltages Here is the spec for your model motor.

Typically there is a controller to generate trains of pulses to turn the motor and a driver to boost the power from the controller enough to actually make the motor turn.  Some of these can be programmed through a serial port it depends on the manufacturer. 

[khaledamer]

I am doing work by my own which related to stepper motors and I would like to know how I can write a program to detect how many steps were missed and compensate missed steps and how I could calculate nomber of missed steps and finally how to generate additional steps forward or backward because I am the beginner of using labview so I do not know how I do them

[khaledamer]

Could you help me with my case please ?

[khaledamer]

Hi

I am doing work by my own which related to stepper motors and I would like to know how I can write a program to detect how many steps were missed and compensate missed steps and how I could calculate nomber of missed steps and finally how to generate additional steps forward or backward because I am the beginner of using labview so I do not know how can I do them ?

Many thanks

[khaledamer]

Hi

I am doing work by my own which related to stepper motors and I would like to know how I can write a program to detect how many steps were missed and compensate missed steps and how I could calculate nomber of missed steps and finally how to generate additional steps forward or backward because I am the beginner of using labview so I do not know how can I do them ?

Many thanks

[Taki1999]

I would suggest picking out a good motor drive.  I believe most of the good controllers will take encoder input and perform the compensation for you.  Once you've got a motor controller and interface picked out, the folks on the board can help you out with specific questions.