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Microstepping is
a relatively new stepper motor technology that controls the
current in the motor winding to a degree that further
subdivides the number of positions between poles. AMS
microstep drives are capable of rotating at 1/256 of a step
(per step), or over 50,000 steps per revolution.
Microstepping is typically
used in applications that require accurate positioning and a
fine resolution over a wide range of speeds.
MAX-2000 microstep drives
integrate state-of-the-art hardware with "VRMC" (Variable
Resolution Microstep Control) technology developed by AMS.
At slow shaft speeds, VRMCs produces high resolution
microstep positioning for silent, resonance-free operation.
As shaft speed increases, the output step resolution is
expanded using "on-motor-pole" synchronization. At the
completion of a coarse index, the target micro position is
trimmed to 1/100 of a (command) step to achieve and maintain
precise positioning. |
