Motion Control

Controller Systems

Velmex (Bloomfield, NY) offers VXM controller systems for power systems that drive motorized products including slides and rotary tables. The controller is a 2-phase, unipolar stepper motor controller that can drive and control precise movements, multi-axis, and velocity. The system is capable of controlling up to four motors, one motor at a time. Two motors can be controlled simultaneously for coordinated motion. Features include an intuitive, comprehensive command instruction set; single-chip microcontroller that digitally controls the motor phase switching and all other interface functions; elimination of noise-sensitive step and direction translation circuitry; and resonance-free motor torque from modulated current control.

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Brushless DC Motor and Control

Groschopp (Sioux Center, IA) offers a brushless DC motor and control package consisting of brushless DC motors and gearmotors. The motors feature closed loop controls to deliver commutated power and variable speed control, maintaining speed regulation over a wide range of loads. The motors feature 2,600 to 3,800 RPM, 1.8 to 10.8 in-lb torque, 1/7 to 1/3 HP, and aluminum frames. The controls offer closed-loop speed regulation, line and low voltage, and chassis mount and NEMA 4X enclosures. Available options are a holding brake, foot mount, and IP66 compliance.

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Robotic Arm

Global Specialties (Yorba Linda, CA) introduced the R700 Vector Robotic Arm that is fully assembled and ready to be programmed in the C language. The robot comes with pre-written example programs that can be downloaded to the ATMEGA64 microcontroller using the supplied USB interface and RobotLoader software. Custom programs can be written using the free open-source WinAVR software.

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Optical Encoders

Avago Technologies (San Jose, CA) announced the AEDR-87xx series of 3-channel reflective optical encoder devices for use in low-power miniaturized motion control systems such as stepper motors, electrical actuators, piezoelectric drives, and portable medical appliances. The devices feature encoding resolution up to 318 lines per inch (LPI), support for 3.3V and 5V supply voltage for low-power applications, and dual analog outputs interfacing directly with an external interpolator for high-precision motion control measurements. The encoders feature three channel outputs including one index digital output; a built-in interpolator for 4x, 8x, and 16x interpolation; built-in automatic LED current regulation; encoding resolution of 318 LPI (up to 1.25 um pitch); and operating temperature range from -20 to +85 °C.

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Motor Drive Controllers

ElectroCraft (Dover, NH) released the PRO Series integrated motor drive controllers that include brushless motor drives, stepper motor variants, and linear actuators, all incorporating a fully integrated drive with the PRO Series advanced control and sequencing functionality. Each includes closed-loop control, a fully programmable digital sequence engine, fully configurable analog and digital I/O, and deterministic real-time communications. These enable any motor drive to serve as either a standalone control solution or part of an integrated multi-axis system. The controllers are pre-configured, and menu-driven configuration tools allow users to set up systems quickly. They are available in a variety of configuration and encoder options.

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Human-Machine Interface

Mitsubishi Electric Automation (Vernon Hills, IL) introduced the GOT2000 Series human machine interface (HMI) that monitors and controls machine components with a graphical touchscreen. It allows operators to interact with the HMI similarly to a tablet or smartphone with intuitive gestures and multi-touch actions. The HMI acts as a seamless gateway to industrial automation devices, including programmable logic controllers (PLC), variable frequency drives, servos, and temperature controllers. The display is designed to optimize operator control and monitoring of device and line status.

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Shaft Grounding Ring

Electro Static Technology (Mechanic Falls, ME) offers the AEGIS® iPRO-MR ring that combines shaft voltage bearing protection with continuous monitoring of shaft voltage levels from a remote location in real time. It is an AEGIS® Shaft Grounding Ring and a shaft monitoring ring in one for large motors and generators in critical applications. The ring is suited for the protection of motors in remote locations that cannot be easily monitored or maintained. It is available in a range of sizes to accommodate even the largest motor shaft diameter, and comes in mating halves to facilitate field retrofits on coupled equipment.

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