Download RSF Supermini Actuator

Chapter 1 Overview of the RSF supermini series
Chapter 1 Overview of the RSF supermini series
The RSF supermini series are ultra-small AC servo actuators combining ultra-precision control
deceleration device Harmonic Drive® that provides precision rotation operation at a high torque with
ultra-small AC servo motor developed to make use of the performance of the decelerator.
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 dedicated servo driver HA-680 is an AC servo driver for 24VDC power supply. The small and
multi-functional HA-680 driver is equipped with position control, speed control, and torque control as
standard to control operation of the RSF supermini series correctly and precisely.
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.
1-1 Major characteristics
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Small, lightweight, and high-torque
The RSF supermini series with the precision-control deceleration device Harmonic Drive® realizes a
high torque and has a very high output torque for the outer dimensions compared to the direct driving
method with a high-capacity motor alone.
Also, combination with the dedicated AC servo motor realizes size and weight reduction that are never
possible before.
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Standard lineup of actuators with a brake (only RSF-5A)
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.
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Superior positioning precision
The characteristics of the control deceleration device Harmonic Drive® such as non-backlash and
superior positioning precision realize high-precision mechanisms.
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Stable controllability
The high deceleration gear ratio of the control deceleration device Harmonic Drive® provides stable
controllability for large variations of load moment of inertia.
RSF-Super_V1_02
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