Chapter 1 Overview of the RSF-B mini series
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1-9 Detector resolution
An encoder with 1000 pulses per rotation is incorporated in the motor unit of the RSF-B mini series
actuators, and the motor output is decelerated by the precision control decelerator HarmonicDrive
®
.
Therefore, the resolution per one rotation of the actuator output shaft is multiplied by gear ratio 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
Item
RSF- 8B
RSF-11B
RSF-14B
Gear ratio
1
：
30
1
：
50
1
：
100
Detector resolution
(when multiplied by 4))
Pulse/Rotation 120,000
200,000
400,000
Angle per one pulse
Second
About 10.8
About 6.5
About 3.2
