Piggy-back, bipolar, chopping, microstep drive
29 April 2008
The NPAD10BF from Micromech is an easy-to-mount and simple-to-connect microstep drive that fits on the back of NEMA Size 17 (42mm square) motors. This neat solution has all the advantages of a piggyback drive without the potential problems of ‘built in’ drives.
These drivers are a constant current (chopper) type driver board with opto-isolated inputs. They are small, easy-to-use and interface, yet powerful enough to support most light instrument positioning applications. NPAD10BF drive modules offer output s of up to 1.2 A per phase (peak) current, an input voltage range from 12 to 30Vdc and can drive bipolar stepper motors with a 1/16 microstepping resolution. This results in a theoretical axis resolution of 3,200 microsteps per revolution. Such a resolution can result in a sub-micron positioning capability if a 2mm pitch or less lead-screw is used.
The compact NPAD10BF has mounting holes for direct connection to the motor.
These drives are also compatible with two-phase stepping motors such as the Nippon Pulse PF/PFC tin can rotary stepper motors as well as the company's PFCL LINEARSTEP motors.
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