Harmonic Drive RSF supermini Series User Manual

1-9 Detector resolution
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Overview of the RSF supermini series
1-9 Detector resolution
An encoder with 200 pulses for RSF-3C, 500 pulses for RSF-5B per rotation is incorporated in the
motor unit of the RSF supermini series actuators, and the motor output is decelerated by 30:1, 50:1, or
100:1 by the Harmonic Drive® speed reducer. Therefore, the resolution per one rotation of the
actuator output shaft is 30, 50, or 100 times of the actual encoder resolution. In addition, the encoder
signal is electrically multiplied by 4.
The following table shows the resolution at the output shaft for different gear ratios.
Model RSF-3C RSF-5B
Gear ratio
Item
30 50 100 30 50 100
Detector resolution
(when multiplied by 4)
Pulse/Rotation 24,000 40,000 80,000 60,000 100,000 200,000
Angle per one pulse
Angle second
(arc sec)
54 32.4 16.2 21.6 12.96 6.48

Harmonic Drive RSF supermini Series Specifications

General

Brand	Harmonic Drive
Model	RSF supermini Series
Category	Controller
Language	English