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Motion controller

A 2-axis motion controller, the DMC-1425 is designed to provide both RS232 and Ethernet communications links for easier, high speed, and long distance communications between any number of computer hardware devices. It also supports the Modbus protocol for easy communication with I/O devices. Additionally, it controls both step- and servomotors, includes linear and circular interpolation for coordinated motion along two axes, and includes uncommitted digital inputs and outputs, and two uncommitted analog inputs.

Galil Motion Control, 203 Ravendale Dr., Mountain View, CA 94043; FAX (650) 967-1751;

For Information, circle 626

Digital drive

The SERVOSTAR CD drive amplifier, for three-phase brushless permanent magnet servomotors, has current ratings for 3 to 10 amps for 115 to 230V ac operation. It is designed for direct connection to 230V line mains. Both the 3 and 6 amp models offer 3:1 peak-to-continuous ratings and the 10-amp model has 2:1 peak-to-continuous. These models also have the option of accepting control voltage through an external 24V supply to increase control flexibility.

Kollmorgen Motion Technologies, 201 Rock Rd., Radford, VA 24141; FAX 540-731-0847;

For Information, circle 627


In-line NemaTrue(TM)gearheads are available in sizes 17, 23, 34, and 42. The smallest-size 17-True Planetary(TM)gearhead measures 2.82 inches from the mounting surface to the gearhead base. It features steel gears hardened to HRC 55-60, and packs a peak torque of 120 inch-lbs. Available in eight ratios, with backlash ratings of 13 arc-min for single-stage gearheads and 15 arc-min for double-stage.

Thomson Industries, 2 Channel Dr., Port Washington, NY 11050; FAX (516) 944-1892;

For Information, circle 628

Stepper/servomotor brakes

The Stepper/Servo family was specifically designed and engineered to offer users a choice in sizes and features need for specific applications. Consisting of models FEB, RFEB, and SSB, all brakes are power-off, or "failsafe" units that mount to the front end of a stepper or servomotor as an added safety feature or for holding the load in place.

Electroid, 45 Fadem Rd., Springfield, NJ 07081; FAX (973) 467-2606;

For Information, circle 629

Motion controller

Within a compact 3.55x3.775 inch design, the Model 5954 high-speed stepper control for embedded applications features a PMD 1451A DSP with a custom Tech80 I/O chip to provide 1.5 MHz maximum step rate per axis. The DSP generates S-curve and other stepper profiles to control position, acceleration, velocity, and jerk.

Technology 80 Inc., 658 Mendelssohn Ave. N., Minneapolis, MN 55427; FAX 612-542-9785;

For Information, circle 630

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