            
|
A300SMC -- A-300 Stepper Motor Controller The A-300 Stepper Motor Controller represents a new level in stepper motor control. Based on the sophisticated new Allegro 3977 IC, this board can drive 2 bipolar stepper motors in full, 1/2, 1/4, or 1/8 step, for smooth microstepping movement. Also, the current-limiting chopper drive circuitry, with mixed modes of current decay, delivers high torque at speeds approaching thousands of steps per second. As with our other controllers, we have Windows 95, 98, Me, NT, 2000, and XP software available for download for controlling the A300SMC, and we also offer a .dll that will allow you to control the A300SMC through your own software program. If you are interested in interfacing the A300SMC with another device besides a Windows PC, please contact us and we will give you the information you need--simple TTL signals are all that is needed! The A300SMC is only $100.00! That includes FREE Windows software! 
The A300SMC can drive bipolar motors up to 2.5A per channel. The board limits uses current-limiting circuitry to regulate the current level in the motor windings. This allows you to run the stepper motor at up to 35V, regardless of its rated voltage, to greatly increase the torque at higher speeds without damaging the motor. We are in the process of adding bipolar motors to our motors page. Please check back in the near future for options, or contact us if you want to make sure your motor can be driven in bipolar mode and does not require more than 2.5A per channel.
Note On Step Rate The maximum step rate depends on a number of factors. The maximum step rate that the board itself can accept is a ridiculous 1,000,000 steps per second. Most stepper lose their torque at around 2000-5000 steps per second due to inductance, etc. By running a stepper motor at several times its rated voltage these speeds can be achieved. Under Windows, timing issues make it impossible to go much beyond 1000 steps per second with enough consistency to keep from missing steps. At this point we are not sure if we will support 1 ms resolution or 0.5 ms resolution in our software and .dll. As long as the power supply is sufficient and the stepper motor is capable, step rates of 1000 steps per second with our Windows software should be no problem. Optional Accessories To complete your motion control system you can chose from these products that we also offer:
|
|
|||||||||||||||||||||||||||||
|
Copyright © 2004, Mill-Shaf Technologies, Inc. All Rights Reserved |
|||||||||||||||||||||||||||||||
