Chapter 1 Overview of the RSF supermini series
- -
6
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 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
◆
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.
◆
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.
◆
Superior positioning precision
The characteristics of the control deceleration device Harmonic Drive™ such as non-backlash and
superior positioning precision realize high-precision mechanisms.
◆
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.
