Motion Control
Stepper Motors and Step Motor Controllers
  The Motion Group, Inc.



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step motors
American Made
TST 2.0/4.0
The TST 2.0 / 4.0 is an adjustable current, switch mode, chopper style driver with 2.8A peak (2.0A RMS) or 5.7A peak (4.0A RMS) per phase maximum; torques from 50 to 500 oz.-in.. The system will operate motors with coil currents from 0.5 to 4.5 amps per phase; 4,5,6 or 8 wire. Note that the TST, DSD and PLC physical package is identical.

During operation, any typical motor, either unipolar or bipolar, is connected to the output terminals of the TST. Full, half or quarter step angle is available (step increments of 1/200, 1/400, 1/800, 1/1600 of a rev per pulse). The front panel controls include a speed dial, stop-start switch and direction switch. Standard speeds range from 100 pps to 10k pps depending on the step angle. Speed accuracy is +/- 1%. Automatic proportional ramping is available.

When the unit is in stop mode, the motor will hold (braking) at either 25%, 50% or 0%(free) of full power. This system can be stalled without damage.

Over-temp, over-current, over-voltage and over-drive protection is standard.

Output current (torque adjust) is dial-able.

In addition to local controls, the system can include a remote panel connector which supports direct interface to digital control, relay logic or PLC’s. Index sensor and safety limit switches are included.

The TST comes standard with translator/ driver card, power supply with fuse, line filter and power cord. Input voltage is 110VAC 60Hz (220VAC 50/60Hz option available). Standard signal connectors are DE-9 for remote control and 6 pin Molex for motor output.
View Mechanical Specs.

Applications include; mill drill power feeds, progressive grinding, door control, remote valves, steam control and other uses requireing a synchronous, DC brushless motor with variable speed, adjustable torque and built-in braking. Spur gear systems with ratios from 2 to 200:1 and peak torques to 2000 oz-in and planetry systems with 3 to 100:1 and 150 in-lb are available.

The DSD digital servo version locks the motor motion to a remote dial or shaft encoder (cam follower).
The Motion Group, Inc. P.O. Box 669 Clovis, CA 93613-0669     © 1996 - 2007 All Rights Reserved-