Aerotech’s BMS series brushless, slotless servomotors represent
the ultimate in high-performance rotary motors. Available in standard
NEMA frame sizes, these motors utilize a slotless rotor design
for superior velocity smoothness and control.
Featuring rare-earth neodymium iron-boron magnets and a high pole-count
rotor, the BMS series provides maximum torque and acceleration
in a small package. Custom mechanical or electrical variations
of the BMS can be engineered with minimal lead time.
Smoother than DC Motors
The BMS series motors can replace standard brushless or brush-type
motors when superior velocity smoothness and control are required.
DC brush-type motors have been popular in applications such as
machine tool and scanning because of their smooth low-speed control.
The BMS motors provide superior smoothness and have higher acceleration
capability than a DC brush motor. Higher acceleration results
in higher machine throughput and performance.
High Performance Design
The BMS series is unlike conventional brushless servomotors because
it incorporates a totally slotless stator design that provides
the ultimate in smooth velocity control. These motors are designed
for applications requiring superior torque and stability performance.
The unique design of the BMS series motors provides a closer inertia
match with mechanical systems than comparable models. This means
better stability and easier tuning.
Ultra-High Encoder Resolution
The BMS series motors can be equipped with a variety of encoder
resolution options for any application. In addition to the standard
RS-422 line driver output, an optional amplified sine-wave encoder
can be used to provide ultra-high resolution. Aerotech offers
encoder multipliers as an option for drives connected to the A3200
system, as well as external multiplier boxes. Resolutions as high
as 1,000,000 counts per revolution are achievable.
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