Course Electric Machines 5: Stepper motors

Includes:

• Experiment card with 2-phase stepper motor, 200 steps per revolution and Incremental disc
• Driver circuit with 6 control inputs and power amplifier, integrated current regulation, optional switching to resistor current limiting
• Overload and status display via LEDs
• Storage case
• Labsoft browser and course software

Course contents:

• Introduction to customary applications of stepper motors
• Introduction to the design and function of stepper motors: Permanent-magnet stepper motors, reluctance and hybrid stepper motors
• Identifying the advantages and disadvantages of various stepper motors
• Introduction to the various principles for controlling stepper motors (unipolar und bipolar)
• Introduction to full-step and half-step operating modes
• Experimental determination of step angle, maximum operating frequency and maximum start frequency
• Investigation by measurement of control signals in half-step and full-step mode
• Analysis of control signals when rotation is reversed
• Introduction to various methods of current regulation for stepper motors
• Experimental determination of the current regulation in use on the basis of control signals
• Writing a program for positioning the stepper motor using relative or absolute positioning
• Course duration: 3.5 h approx.