Brushless Servo Motor

maxon precision motors (Taunton, MA) released the EC-i30 20W brushless servomotor with integrated electronics. With an integrated 4-quadrant speed controller, the motor is available as a 5-wire version. Both enable and direction versions of the motor are offered. The 30-mm-diameter motor is available with an optional planetary gearhead and can be customized specific to the needs of the application. Features include 24 VDC winding, 4 pole pairs, speed range from 250 to 6060 RPM, and optional gearheads, encoders, and drive electronics.

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Integrated Motors

Applied Motion Products (Watsonville, CA) introduced the SWM24IP-3DE integrated stepper motor and the TXM24IP-IDG StepSERVO™ integrated motor. The NEMA 24 frame integrated motors with dual-port communications connect to the industrial EtherNet/IP network of a plant or machine. By incorporating two M12 EtherNet/IP connectors instead of one on each axis, the motors support topologies such as line networks and daisy-chain connections. All drive and motor features are accessible over the EtherNet/IP network including more than 100 commands and 130 registers for controlling motion, I/O, configuration, polling, math, register manipulation, and Q programming. The motors feature a NEMA 24 (60-mm) mounting flange and include a built-in encoder for enhanced positioning capabilities.

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Inertial Measurement Units

Thales Visionix (Aurora, IL) announced NavChip Series 3 6-axis inertial measurement units (IMUs). The MEMS-based IMUs feature proprietary signal processing techniques and bias in-run stability to 3°/hour (typical) and 5°/hour (max) for applications over the ±16 g operating range. Other features include a 1,000 Hz update rate and the ability to accept other external inputs such as a magnetometer. The IMUs are factory-calibrated for bias, scale factor, and misalignment over the full operating temperature range of -40 to +85 °C. Power consumption is 135 mW, making the IMUs suited for power-sensitive remote and battery-operated systems. They offer selectable built-in-test (BIT) modes for command and continuous diagnostic monitoring as well as multiple output interfaces including I2C, TTL UART, or SPI-compatible.

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Kit Encoders

POSITAL (Hamilton, NJ) offers absolute multi-turn kit encoders. The magnetic encoders provide multi-turn measurement ranges for motors connected to a screw shaft, cable drum, or gear reduction system. The multi-turn rotation counter is self-powered, requiring no backup batteries. The encoders for stepper motors are “kit,” or modular devices, designed to be integrated into a motor housing, measuring the rotary position directly from the drive shaft. Kit packages are available with the mounting form factor for NEMA-standard stepper motors. The magnetic measurement module is resistant to dust, moisture, and shock/vibration loading. Shields are available to protect the module from external magnetic fields. SSI and BiSS C open-source communication interfaces are compatible with a range of PLCs and computers.

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Servomotor/Drive

The ACSI EtherCAT integrated servomotor and drive from Tolomatic (Hamel, MN) automates additional axes of motion with Industrial Ethernet protocols. As an integrated servomotor and drive, the unit is suited for machine retrofits and displacing pneumatic cylinder applications. The integrated controller, available in both linear and rotary operating modes, automatically configures the motor, actuator, safety limits, and other settings inside the controller. The EtherCAT protocol is in addition to existing EtherNet/IP, PROFINET, and Modbus-TCP Ethernet options. The unit is set up and deployed with Beckhoff controllers into EtherCAT control systems and is designed to internally close the position loop, removing the requirement for high-speed cycle times and high-performance hardware.

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Servomotors

The Orbex Group (Fremont, CA), offers brushless servomotors for dynamic servo-driven applications. Available in a range of frame sizes (60–176 mm), the NdFeB-based motors include incremental encoders for position feedback and electrical commutation. Features include customizable windings, integrated gear reducers, brakes, additional feedback options, connectors, and custom mounting options. Frameless configurations are also available for integration into assemblies. The motors provide low-cogging motion and IP65-level protection for demanding industrial or outdoor environments.

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Drives

American Control Electronics (South Beloit, IL) introduced the DCR300-60 and DCR600-60 Series microprocessor-based, low-voltage PWM drives for brushed DC motors up to 24 and 48 VDC, respectively. The microprocessor allows for custom programming, potentially eliminating the need for a PLC and supporting devices. The drives are rated for 30 amps continuous operation or 60 amps for one minute. The regenerative controls are capable of braking or reversing on the fly, without the use of braking resistors or motor lead swapping. The drives are equipped with a brake output that can be used to power electromechanical brakes or an external run status LED. There are two onboard LEDs that communicate run status and fault conditions. Jumpers select between speed or torque mode operation, as well as unidirectional or bidirectional control with a 0-5 VDC analog signal.

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Ball Slides

Del-Tron (Bethel, CT) introduced non-magnetic ball slides for applications where magnetic interference cannot be tolerated. The lightweight ball slides are suited for medical, semiconductor, military, and laser applications. The linear motion ball slides are available in seven profile sizes with travels ranging from 0.5 to 12” of travel; metric ball slides are also available. All slides have a straight line accuracy of .0005” per inch of travel and a positional repeatability of .0002”. They are self-cleaning and do not require lubrication.

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Mini Slide

The DGST pneumatic mini slide from Festo (Islandia, NY) is designed for precision handling, press fitting, pick and place, and electronic and light assembly applications. The slide and yoke plate are machined from a single piece of aluminum for low torsion and accurate alignment. Maintenance-free twin piston drives and high-force-capacity recirculating ball bearing guides provide power from 7.6 to 132.6 lbf (34 to 590 N) at 6 bar. Three cushioning options are available. Two slides can be piggybacked by bolting the units together — adaptor plates are not needed. Locating port connections, end-position sensing, and precision end-position adjustment together on one side also contributes to ease of installation. Payloads for the seven different sizes range from 1.5 to 37.5 pounds (0.7 to 17 kilograms), and stroke length ranges from .4 to 8” (10 to 200 millimeters).

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Stepper Motor

Nanotec Electronic (Feldkirchen, Germany) offers the SCA5618 stepper motor available in three lengths and with two different windings. Depending on length, the holding torque is 0.6 to 2.3 Ncm; it has a resolution of 1.8°. For a higher resolution, the motor can be combined with an optical or magnetic encoder. The integrated connector enables connection of customized cables or replacement of an existing motor. The motor can be ordered with an 8-mm D shaft or with a round 6.35-mm shaft.

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Angle Sensors

Novotechnik U.S. (Southborough, MA) introduced the RSB 3600 Series of absolute single-turn angle sensors. The non-contact sensors feature galvanized steel housing and stainless steel shaft with up to 100 N working shaft load for the HD version. They are sealed up to IP 69K, depending on version. The sensors are EGMR (enhanced giant magnetic resistance) devices that retain their angular position even when power is removed. Operating speed is up to 12,000 RPM. Other features include 36.5-mm profile, count to 16 turns, angular position 0 to 360°, 12-bit resolution, repeatability of <0.1°, and typical independent linearity of ” ±0.8% F.S. Single, partially redundant, and fully redundant two-channel versions are offered. Output options are 0.25 to 4.75 V, 0.5 to 4.5 V, 0.1 to 10 V, 4 to 20 mA, and 10 to 90% of power supply. They are available in connector or cable versions as well as 5- and 24-V supply models.

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Hybrid Stepper Motors

The PJE series of bipolar hybrid stepper motors from Nippon Pulse (Radford, VA) is available in sizes from 20 mm to 86 mm in diameter (NEMA sizes 8-34). The motors provide high torque in each of their form factors (single, double, and triple stack lengths), so original equipment manufacturers can utilize a smaller-sized motor to achieve the required amount of torque. Larger frame sizes include an option for a motor with a built-in encoder, while some of the smaller frame sizes include a linear hybrid model.

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