HOW TO OPERATE MULTIPLE MOTORS IN PARALLEL

Operating multiple motors in parallel is done every day. In this brief Tech Tip learn how to drive two stepper motors by the same pulse-and-direction signals and whether to use electronic gearing or master/slave.

THE SCIENCE OF TUNING SERVO MOTORS

While tuning itself is not the problem for most engineers, understanding the tuning algorithm, the interaction of tuning element and where in the trajectory profile the test for velocity stability for each of the PID elements is. This Tech Tip defines common terms and provides a solid procedure to help you successfully tune servos.

LOW COST PC STEPPER CONTROLLER NOW OFFERS WINDOWS NT SUPPORT
	ACS-Tech80's Model 5000 offers up to three axes of independent stepper control for as inexpensive as $250 per axis. The 5000 offers software drivers to fully support Windows NT 4.0-based applications that also require interrupt generation capabilities.

TUNING OUT LAG

Ellis, George, May 1999 Take a closer look at instability and learn the proper method to tune out lag in your motion system.

OPEN-LOOP RESPONSE TESTING IMPROVES PROCESS

Egnew, John, June 1999 75% of process control loops under-perform: Here's how to evaluate problems and make improvements from the operator interface.

SORTING OUT LINEAR ACTUATORS

Tim Levindofske and Timothy Sulski, January 1999 In this article find out how motors, gearing, drive screws and controls all play a critical role in determining actuator performance.

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