How Intelligent Motion Control Solutions Benefit Smart Manufacturing

How Intelligent Motion Control Solutions Benefit Smart Manufacturing

Manufacturing Technology Insights | Friday, December 31, 2021

Intelligent manufacturing, based on intelligent motion solutions, consumes less energy and enables more complicated motion, resulting in increased flexibility, productivity, and sustainability.

FREMONT, CA: Intelligent motion control is a critical component of smart manufacturing because it enables highly flexible and efficient production. Intelligent motion control enables deterministic motion solutions by combining precision feedback, enhanced sensing, high-performance control, and seamless connection.

Motion control technologies have grown from simple on/off fixed-speed motors to sophisticated multi-axis servo-drive solutions in robotics. This evolution has been accelerated by the rising complexity of automation required to achieve higher performance and autonomy in intelligent manufacturing.

Accelerate the development of higher-value motion solutions by leveraging system insights.

Analog Devices, Maxim Integrated, and Trinamic (all of which are now a part of Analog Devices) are committed to providing superior system performance and integration across numerous technologies for motion control applications.

Measuring precisely

Complex motion control demands precision converter technologies for high-quality current feedback, utilizing isolated and non-isolated solutions to achieve high accuracy and fast transient response in the control loop. The ADuM7703 is a high-performance, second-order Σ-Δ modulator designed for isolated current-sense measurement. It converts an analogue input signal to a high-speed, single-bit data stream with on-chip digital isolation based on Analog Devices iCoupler technology. The low offset drift (0.6 V/°C max) of the ADuM7703 decreases torque ripple, and the compact eight-lead package with integrated LDO simplifies power supply design and minimizes board size. A common-mode transient immunity (CMTI) rating of at least 150 volts per nanosecond enables usage with gallium nitride and silicon carbide power circuits.

Isolation and communication interface

Isolated gate drivers must drive the power semiconductors in a three-phase inverter operating at a high voltage (>100-V). Isolated gate operators deliver sturdy, dependable, and safe assets. The ADuM4122 is a single-gate isolated gate driver that supports a 3-A short-circuit (<3 Ω) gate current. It provides functional or reinforced isolation to an 800-VDC bus with slew rate control to optimize EMI/power loss. Additionally, it features a high CMTI and a low propagation latency, making it ideal for usage with SiC and GaN power semiconductors. The ADuM6028 isolated power devices can be combined with digital isolators, isolated transceivers, and isolated data converters to provide a minimal eight-lead system that is ultimately approved and ready to use. RS-485 transceivers, both isolated and non-isolated, are used to serially communicate encoder position feedback information to the motion controller and general external communication interfaces. The ADM3066E, a 12-kV IEC ESD-protected, full-duplex 50-Mbps RS-485 transceiver, provides a high-bandwidth, high-ambient–temperature (125 C), and resilient communications solution for encoder applications in a tiny, 3-mm device.

Management of electrical energy

Intelligent motion applications are often used in difficult industrial situations where high ambient noise tolerance and immunity to high-voltage transients are required. Drives are situated closer to the motor in smaller enclosures in some decentralized applications, while in others, the drive is integrated with the motor. To support these more minor–form–factor intelligent motion applications, higher–power–density power management technologies that operate at elevated ambient temperatures are necessary. Maxim Integrated Products and Analog Devices The combination of integrated power management circuits and power modules lays the groundwork for powering today's and tomorrow's intelligent motion applications.

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