PowerTec 2000C Instruction Manual page 20

1.4 BRUSHLESS
MOTOR BENEFITS
© copyright 1995 by
Powertec Industrial Motors
Some important benefits of using POWERTEC Brushless DC
motors and controls are:
ABSOLUTE SPEED CONTROL REGARDLESS OF LOAD
— The speed regulation of the POWERTEC Brushless DC motor
and control system is 0%! The speed of the motor does not change
from no load to full load. Options include a speed accuracy of 50
PPM (parts per million) and absolute ratio control.
HIGH EFFICIENCY — The efficiency of the POWERTEC
Brushless DC motor and control exceeds that of either conventional
DC or induction AC motors and inverters. The Brushless DC motors
are often in smaller frames than comparable motors. This efficiency
contributes to low cooling costs for rooms where Brushless DC
motors are installed as well.
VERY LOW MAINTENANCE — The POWERTEC Brush-
less DC motor is as rugged and reliable as the AC induction motor.
There are no brushes to change, no fields to burn up, and no commu-
tator to be maintained. The bearings are long-life bearings, capable of
years of operation with only regular lubrication.
ABSOLUTE TRACKING — Two motors can be set up to
track pulse for pulse. Their shafts will be very nearly synchronized.
This capability is standard. Options include the ability to operate at
an absolute ratio from 0.0001 to 7.9999.
The POWERTEC Brushless DC motor and control provide
performance in their standard configuration which exceeds the
performance of other types of motors and controls. Even when the
other types of motors and controls are combined with expensive
added cost options, they do not perform as well as the Brushless DC
motor and control do right out of the box.
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