AGR Hardware Manual
Electrical Specifications and Installation
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. Programming direction is typically selectable in the controller, while machine
direction is hardwired in the stage.
shows the machine direction of AGR stages.
Figure 3-4:
Machine Direction
Limited travel stages (-TRxxx option) have limit flags that can be adjusted to change the travel range of the
stage unless the AGR is equipped with either the seal or encoder options. If the AGR is equipped with a seal
or encoder, the AGR would need to be sent back to the factory for adjustments.
D A N G E R : Disconnect electrical power before making any mechanical adjustments or
performing maintenance.
If you need to make limited travel adjustments, access the limit flags by removing the two covers and if
applicable, the tabletop (-TTx option). When reinstalling the covers, make sure that there is no contact
between the covers and the stage shaft.
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Chapter 3
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