New Product: Two-phase motor/driver
The RBK two-phase bipolar stepping motor and driver package features dc input and a smooth drive function that divides the basic 1.8° step angle up to 128 μsteps (0.018° step angle) in 16 selectable resolutions using built-in switches located on the driver.
A harmonic suppression
function reduces stepmotor torque vibrations
by correcting or shaping the driver current waveforms,
particularly at lower motor shaft speeds. Another
function suppresses the vibration signal levels in the
midspeed range. These four control functions provide
smooth operation over a wide speed range. The driver’s
constant-current-drive strategy operates over a 20 to
75-Vdc range. Effective current reaches 6.3 A peak
(4.5 A RMS) per phase.
The system comes in two stepmotor frame sizes,
each offering three models. The first Series includes the
RBK264A, 266A and 268A with holding torques ranging
from 68 to 240 oz-in. The RBK296, 299, and 2913, have
holding torques of 310 to 910 oz-in.
The second Series, the IP65-rated motor package, has
the same two frame sizes (RBK264T and RBK296T) and
three models each with similar holding torques.
Oriental Motor USA Corp.,
1001 Knox St., Torrance, CA
90502,
(800) 418-7903,
orientalmotor.com