MD2S MICROSTEPPING MOTOR DRIVER DOWNLOAD
The red LED is turned on when the motor is stepping and off when the motor is stopped. This version provides a practical method to spin a stepper motor without the need for a motor controller. The MD2S can safely dissipate a sufficient amount of heat in free air for phase currents less than 4. The motor direction may be reversed by swapping pins 5 and 6 of J3. Applying current to the windings will generate attractive and repulsive forces to align the teeth of the stator and rotor. When J2 pin 2 is high, the motor will ramp to the speed selected by these 3 switches.
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Asserting this input pulling this input low will immediately cut the motor current to zero for all MD2S versions. Product Notes Cables and connectors are not included and must be ordered separately.
Pin 3 – Inhibit Input This input may be used as an emergency stop. US Digital is aware of the increasing attention to world-wide environmental regulations, specifically with regard to the need for hazardous substance restrictions in electronic components and systems.
The 8 DIP switches may be changed while operating and changes take effect immediately without the need for a power-down cycle. The step input is digitally filtered and will not pass any pulses shorter than nsec. The standard speed choices are md2z in the table below. This will usually not cause noise problems, but depends on the system grounding situation. The MD2S will ramp up or down to follow the real-time setting of the switches.
Deasserting this input changing from microztepping to high will immediately restore motor current. The original jumpers provided with the MD2S should be used since they provide better connections for carrying motor current than other common jumpers. The MD2S has two pluggable screw terminal connectors and a power jack. Microstepping executes the same sequence but in smaller increments sine and cosine and solves the primary resonance problem. When J2 pin 2 is high, the motor will ramp to the speed selected by these 3 switches.
See chart below for more information. For purchasing or volume discounts, please use the above part number and contact us at: Pin 1 – Isolator Ground Input Notice: Care must be taken not to short other components. Two microstep;ing of jumpers select the desired peak motor current, one for each motor winding.
See complete warranty for details. Available on select products.
US Digital Products Md2s-p Micro Stepping Motor Driver
Please supply the product options above. The higher the resolution, the smoother and quieter the motor. See the resolution table for a map.
This is most noticeable when the motor is at or near zero speed. Peak motor currents are selectable from 0. When this input is pulled low, the motor will ramp up to the selected speed.
US Digital® | Products » MD2S Microstepping Motor Driver
All power MOSFET transitions are off; consequently, the motor windings are disconnected electrically from the circuit and the motor mtoor rotate freely.
Make sure that the terminal blocks are wired to the MD2S correctly before applying power. Please note that the MD2S-D will immediately stop without ramping down when this input mds2 asserted. If the motor is already running and this input is changed, the motor will ramp down to stop, then ramp up in the new direction.
The single row of pins near the center of the MD2S are for factory use only. Applying current to the windings will generate attractive and repulsive forces to align the teeth of the stator and rotor.
The red LED is turned on when the motor is stepping and off when the motor is stopped. Asserting this input has priority over the zero-speed auto current reduction enabled by DIP switch 3 and is not additive.