NSK MEGATORQUE M-ESB-YSB2020AB300 - Page 203

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7.2. For More Advanced Operation
7.2.2. Incremental Position Scale (For Incremental Position Sensor)
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2 Single rotational position scale
l The position data starts from the home position and increases when rotated to clockwise, and the
position data returns to 0 when the Motor rotates one revolution.
l The position data ranges from 0 to 819 199 [pulse].
Figure 7-40: Single rotational position scale (incremental position sensor)
409 600 pulse
614 400 pulse
90° 180°
270° 0°
CW
204 800 pulse
0 pulse
Home position
(Defined by Home Return or execution of
AZ command)
YSB Sereis Megatorque Motor
3 Multi-rotational position scale
l The position starts from the home position and extends to plus direction only, and returns to 0
when rotated specified revolutions by the PS command.
l The position data ranges from 0 to {819 200 × (PS data) – 1}.
Figure 7-41: Multi-rotational position scale (incremental position sensor)
Home position (defined by Home Return or AZ command)
CCW ¬
¯
® CW
P–614 400 P–204 800 204 800 614 400
q –270°
q –90°
90° 270°
P–819 200 P–409 600 0 409 600 819 200
q –360° q –180°
0° 180° 360°
YSB Series Megatorque Motor
P = 819 200× (PS data)
q = 360×(PS data)
Data returns to 0 after making the PS data revolutions.