NSK MEGATORQUE M-ESA-Y2005V25 - Types of Position Scale

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9.2.1.3. Types of Position Scale
l Three types of position scale are available for the user to select the appropriate type for each
purpose. Position scale type can be switched by setting the PS command.
Table 9-10
PS setting Type of position scale Application
PS0 Linear position scale Ball screw driving, limit motion range.
PS1* Single-rotation position scale General indexer, etc.
PS2-99 Multi-rotation position scale Chain driving, etc.
* : Shipping set
1 Linear position scale
l This position scale extends linearly from the origin in both plus and minus directions.
l Scale values range from -2 147 483 648 [pulses] to +2 147 483 647 [pulses] with the Home position
at 0. The coordinate value increases in the plus direction. When it exceeds +2 147 483 647 [pulses],
the value returns to -2 147 483 648 [pulses]. Falling below -2 147 483 648 [pulses], the value returns
to +2 147 483 647 [pulses].
Figure 9-25: Linear position scale
Home position (origin) or AZ command execution point
CCW direction
←
↓
→
CW direction
-368 640
122 880 122 880 368 640
-2 147 483 648
-270° -90° 90° 270°
2 147 483 647
-491 520
-245 760
0 245 760 491 520
-360° -180° 0° 180° 360°
Home position (origin) or AZ command execution point
CCW direction
←
↓
→
CW direction
-460 800
-153 600
153 600 460 800
-2 147 483 648
-270° -90° 90° 270°
2 147 483 647
-614 400
-307 200
0 307 200 614 400
-360° -180° 0° 180° 360°
Motor series: YS, JS1, JS2, RS
Motor series: SS
Home position (origin) or AZ command execution point
CCW direction
←
↓
→
CW direction
-307 200
-102 400
102 400
-307 200
-2 147 483 648
-270° -90° 90° 270°
2 147 483 647
-409 600
-204 800
0 204 800 409 600
-360° -180° 0° 180° 360°
Motor series: AS, BS, JS0
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