Motion Control

Electro-Hydraulic Motion Controller

Delta Computer Systems (Battle Ground, WA) has announced the RMC200 closed-loop electro-hydraulic motion controller that has the capacity to handle closed-loop control of up to 32 motion axes. The controller can synchronize the motion of multiple axes, enabling the construction of machines with scalable performance and quick production changeovers. It provides built-in support for controlling pressure/ force as well as position/velocity/acceleration. Through use of a programmable feature key, the controller will enable only the number of control loops that a customer’s application needs. Other features include a display screen on the CPU, I/O modules with push-in wire connectors, and fully encased, user-installable modules that “rock-in” to provide power-sequencing capability. The unit’s modular expandability enables it to support expanded control and I/O interfacing compatibility as new modules are developed.

Posted in: Products, Manufacturing & Prototyping, Motion Control

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Grippers

Airpot® Corp. (Norwalk, CT) announced GramForce™ Accurate Force Pneumatic grippers that generate no measurable friction and provide a gentle grip for delicate operations. They operate at pressures from 0.02 MPa to 0.7 MPa, and offer holding pressures as low as 0.25 N (0.056 pounds) and up to 8.6 N (1.9 pounds). With synchronous and counterbalanced parallel design that allows unchanging gripping force in any mounting orientation, the grippers are internally driven by two 5.6-mm-bore pneumatic actuators. The carriage blocks are mounted on a stainless steel rail. They have operating ranges from -20 to 80 °C. The design accommodates finger lengths up to 75 mm. Assembled, the gripper is less than 50 mm high, less than 79 mm long, and 26 mm wide. The grippers are suited for precision assembly equipment, test and measurement devices, robotic end-effectors, small parts handling, and machining operations.

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Servo Drives

Advanced Motion Controls® (Camarillo, CA) announced AxCent™ servo drives for centralized motion control schemes. The Models AB15A100, AB25A100, and AB20A200 are panel-mount servo drives that operate with brushless permanent magnet motors as well as brushed motors and inductive loads. The drives are controlled with ±10V analog command signals, and use trapezoidal commutation when driving brushless motors. The AB15A100 outputs 15A peak and 7.5A continuous with up to an 80VDC bus; the AB25A100 outputs 25A peak and 12.5A continuous with up to an 80VDC bus; and the AB20A200 outputs 20A peak and 10A continuous with up to a 175VDC bus.

Posted in: Products, Manufacturing & Prototyping, Motors & Drives

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Hollow Shaft Encoder

Kübler (Charlotte, NC) released the Sendix F5883 Motor-Line optical hollow shaft encoder with a mounting depth of 43 mm. The encoder is based on the Sendix platform, and features Intelligent-Scan Technology . It is insensitive to magnetic fields, offers EMC characteristics, and supports interfaces such as SSI, BiSS, SinCos, RS422, and Push-Pull for connection to frequency converters. The encoder is resistant to installation errors, shock, and vibration. It is available with a through hollow shaft of up to 15 mm, and clamping on the A and B side for all usual geared motor drive shafts. With a tangential cable outlet, the encoder can be installed in tight mounting spaces.

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AC Drive

Danfoss Drives (Milwaukee, WI) introduced the VACON 20 AC drive that features built-in PLC functionality. It is available in all common voltages (110- 600V), and a power range up to 18.5 kW/25 HP. The built-in RS-485 interface offers a serial control interface for the drive. With optional modules, the drive can be connected to almost any communication system including CANOpen, Fieldbus, DeviceNet, and Profibus DP. Features include accessible terminals, built-in DIN rail mounting, and the MCA parameter-copying tool that can clone settings without main power in the drive. Users can build their own control logic in the drive, and utilize unused I/O of the drive for performing other machine-related tasks. In addition, the parameter list can be freely modified, and application-specific parameter sets and default settings can be created.

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Brush DC Mini Motors

Portescap (West Chester, PA) introduced the 16DCP Athlonix™ high-power-density brush DC mini motors. Available in a 16-mm diameter, the 16DCP motors feature a coreless design with an optimized self-supporting coil and magnetic circuit. The motors are available in two variations — precious metal commutation and graphite commutation — both featuring an Alnico magnet inside. The motors feature a constant force spring design for carbon brush, and an REE (Restriction of Electro Erosion) coil is an available option. With maximum continuous torque up to 2.63 mNm, the motors are suited for medical and industrial pumps, gas analyzers, security and access, and power tools. They are available with encoders and gearheads of various sizes and ratios.

Posted in: Products, Manufacturing & Prototyping, Motors & Drives

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Positioning Controllers

maxon motor (Fall River, MA) offers the EPOS4 controller module with detachable pin headers and two different power ratings. With a connector board, the modules can be combined into a ready-to-install solution. The position controllers are suitable for control of brushed DC motors and brushless BLDC motors (EC motors) with Hall sensors and encoders up to 750W continuous power and 1500W peak power. The CANopen positioning motor controllers are available with Ethernet-based interfaces such as EtherCAT, or absolute rotary encoders. Features include Field Oriented Control (FOC) with multiple analog and digital I/O, along with various command options. Start-up and parameterization are performed with the EPOS Studio intuitive graphical user interface and user-friendly, menu-controlled wizards.

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