Travel Adjustment; Optical Limit Adjustment; Figure 2-14: Bottom View Of The Adrt - Aerotech ADRT Series Hardware Manual

ADRT Hardware Manual

2.5. Travel Adjustment

2.5.1. Optical Limit Adjustment

Stages with the limited travel option have the optical limits set at the factory prior to shipment. However, you
can adjust the optical limits if needed. Consult the factory if more information is required.
W A R N I N G : Do not adjust the hard stops to an angle smaller than the stage's limit travel.
Doing so could result in damage to the stage and payload and the possibility of bodily injury.
Maintain at least ±5° of travel between the optical limits and the hard stops. You should leave
enough overtravel between the electrical limit and the hard stop for the stage to completely
decelerate and stop before impacting the hard stop.
The following procedure describes how to adjust the optical limits.
1. Disconnect all electrical power from stage.
2. Remove the [QTY. 3] M3 flat head screws to remove bottom cover from stage (refer to
Disconnect optical limit board wires.
3. Loosen the [QTY. 4] M3 button head cap screws (two per limit flag) and slide each limit flag along the
bolt circle to the desired half-limit travel. Depending on the amount of adjustment required, you might
have to remove these screws and slide the limit flags to the desired half-limit travel positions. Note that
the optical limit centerline passes through the centers of the two optical sensors on the optical limit
board.
4. Once the limit flags are placed for the desired half-limit travel, re-tighten or reinsert [QTY. 2] M3 button
head cap screws per limit flag. Make sure limit flags are fastened securely.
5. Reconnect the optical limit board wires and reattach the bottom cover to the stage with [QTY. 3] M3 flat
head screws.
6. Prior to operating the stage, manually test the optical limit adjustment to ensure that the optical limits
trip at the desired half-limit travels.
Figure 2-15 shows the bottom view of the ADRT with the bottom cover hidden for clarity. An optical half-limit
travel of 30° is shown for reference.
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Mechanical Specifications and Installation
Figure 2-14: Bottom View of the ADRT
Chapter 2
Figure 2-14).
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