Are you thinking of a cool project that uses stepper motors? A Robot? A CNC Router? A computer controlled Plasma Cutter? An Engraving Machine? A Motorized Telescope? A Desktop CNC Milling Machine? Then you need this powerful stepper motor driver! This driver uses the SLA7062M IC which combines low-power CMOS logic with high-current, high voltage power FET outputs to deliver a whopping 3 Amps of motor current. The SLA7062M is part of the SLA706xM series from Allegro/Sanken. SLA7062M DATA SHEET This drive will deliver the power you need, but how about precision? The stepper drive will work with any DC input voltage from 10V to 40V DC. You will get better performance with higher input voltages. The motor current is adjustable by a potentiometer on the board. If no step pulses are received after a 2-second timeout, the board will automatically reduce the motor holding current to 1/2 the value that was set by the potentiometer. Unipolar motors with voltage ratings from 1v to 12v will work, but you will get better performance with lower motor voltage ratings (motor voltages rated at less than 3V). Well, this happens to be a Microstepping Drive! You can select from half-step, quarter-step, eighth-step and even sixteenth-step modes. Combine a 200-step-per-revolution motor with the sixteenth-step mode and you'll get an amazing 3200 steps per revolution. That's 0.1125 angular degrees per step! There's more: This drive works with UNIPOLAR (6-wire & 8-wire) motors. Unipolar motors typically are more plentiful and lower cost than bipolar motors, so you can save money on your project. In the past, unipolar drives required large dropping resistors that ran really HOT. Not any more! This drive uses PWM (pulse-width modulation) to deliver maximum power to your stepper motor with NO DROPPING RESISTORS. Here's another feature of this wonderful drive that you shouldn't do without (especially for CNC machine builders): Idle Power Reduction. This means that as long as the motor is in motion, the drive delivers the full power that you have set. But if the motor is stopped for more than 2-seconds it automatically switches to half power. Or you can disable the Idle Power Reduction and run constantly at full power. The drive accepts simple STEP & DIRECTION signals. The input signals are fully opto-isolated and the drive can be easily connected to the parallel printer port of your computer. In addition to offering the complete unipolar microstepping driver kit (ALL parts are included in the kit - there is nothing more to buy). (24K001)
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