Modern motion applications require high accuracy both during and at the end of the move. But even if your PID settings are carefully optimized the motion at the end effector is never perfect. This paper looks at the powerful technique of feedforward and shows how it can be used to compensate for load inertia, machine compliance, stiction, and even non-linearities in the motor to build systems with better accuracy, smoother motion, and higher speed operation.
In this Insider Interview produced by Machine Design, Bob Vavra, Senior Content Director of Machine Design & Electronic Design, talks with PMD's Prabh Gowrisankaran, VP of Engineering & Strategy, about the ION®/CME N-Series Digital Drive and how it will impact the approach used by engineering teams to design machine controllers.
When it comes to step motors, a new drive technique called stepper servo has some engineers believing they have found the holy grail of positioning motion control - the high performance of a servo motor with the low cost of a step motor. In this paper we will explore the benefits and limitations of the stepper servo control technique, also called closed loop stepper, and explain why it is attracting serious attention from machine designers.
Watch a 30-minute webinar presented by Chuck Lewin, CEO of PMD, that tells you all about the revolutionary ultra-compact ION/CME N-Series Digital Drive. Learn how it will help you in your next motion control design project, and hear about some real-world applications that illustrate the power and flexibility of the N-Series ION.
Design In Action - Comparing Two Approaches to Building a 3-Axis Gantry Controller Board In this article we compare building a motion controller board for a three-axis gantry using two different design approaches. The first uses PMD’s MC58113 Motion Control ICs, and the second uses ION/CME N-Series Digital Drives. In the end we will show you which design approach is easier, which is faster, and which results in a less expensive product to produce.
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Cost Effective Single-axis Positioning Control ICs Magellan® MC58113 ICs deliver high-performance single-axis motion control for Brushless DC, DC Brush, and step motors. The MC58113 is at the heart of many of today's leading medical, industrial, mobile, and automation motion control applications.
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Motion Kinematics In this white paper we look at machines with non-Cartesian movement systems. These include SCARA (Selective Compliant Assembly Robot Arm) robots, PUMA (Programmable Universal Manipulation Arm)-style arms, Delta Robots, and a variety of other mechanisms. These non-Cartesian mechanisms present special challenges, but there are some basic techniques that will take you a long way toward getting these useful and common mechanisms under control.
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Motion Control Goes Small
Machine designers are increasingly asked to build systems that take up less space, operate on less power, and run with higher performance. Thankfully, motion controls are answering the call with new motors, new sensors, and new architectures. Read on to learn about the latest developments as motion control goes small.
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