3.4. Limits, Marker, and Machine Direction
Aerotech stages are configured to have positive and negative "machine" directions. The machine
direction defines the phasing of the feedback and motor signals and is dictated by the stage wiring
(refer to
for Motor and Feedback phasing information). Programming direction of a
stage is set by the controller that is used to move the stage. The galvo motors for each axis have
internal electrical limits for both positive and negative machine direction motion. Programming
direction is typically selectable in the controller, while machine direction is hardwired in the stage.
Figure 3-2:
-BE1 Galvo X-Axis Machine Direction (front)
Figure 3-3:
-BE1 Galvo Y-Axis Machine Direction (side)
AGV-HP(O) Hardware Manual
3.4. Limits, Marker, and Machine Direction
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