1-1 Overview of RSF supermini Series
1-1
Overview of the RSF supermini series
1-1
Overview of RSF supermini Series
The ultra-compact RSF supermini servo actuators utilize zero backlash Harmonic Drive® precision
gears, a brushless servo motor and an incremental encoder to deliver precision motion control.
Actuators with an electromagnetic brake are also included in the lineup. They can meet fail-safe
requirements of equipment to prevent accidents upon power supply failure.
The RSF supermini series can contribute to downsizing of driving of robot joints, semiconductor/LCD
panel manufacturing equipment, machine tools, and other FA equipment. By utilizing its small and
high-torque characteristics, it can also be used for small equipment and for research.
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1-2 Major characteristics
Small, lightweight, and high-torque
The RSF supermini actuators are the union of Harmonic Drive® gearing with a super-flat AC
servomotor. The ultra-compact size allows integration to smaller machines. RSF supermini
series actuator outputs have a much higher torque per volume than direct drive motors.
Standard lineup of actuators with a brake (only RSF-5B)
The standard lineup of AC servo actuators includes the deenergisation operation type actuators
with an electromagnetic brake for the first time for this size of actuators.
Fail-safe requirements of equipment can be met to prevent accidents upon power failure without
providing any external brake or changing the equipment structure to install a brake.
Advanced positioning accuracy
Integrated Harmonic Drive® gear for zero backlash and advanced positioning accuracy.
Stable controllability
By high reduction ratio of speed reducer, stable controllability is gained against change in load
inertia moment.
Wide operation range
The newly developed servo motor features a maximum rotational speed of the motor itself to
10,000rpm, thereby expanding the
operational range of the actuator.
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