Section 3 - Installation, Set-Up And Operation; Setting The Travel Limits - Newport 850G Series User Manual

Section 3
3.0 Installation, Set-up, and Operation
3.1

Setting the Travel Limits

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The actuators are shipped in sturdy, foam-cushioned boxes. Please inspect
the actuators and/or controllers immediately and notify the carrier if
damage is obvious. The actuator includes a wrench to access the travel
limit adjustment and a retaining nut for actuator mounting.
Before mounting the 850G actuator, follow the directions below to adjust
the travel limits such that the actuator will trigger one of its limit switches
before encountering any external hard stop such as the end of travel of a
translation stage. Failure to do this may result in damage to the actuator
and/or the stage. Actuators are shipped with the travel limit set to less
1
than ⁄ inch (12mm) to prevent accidental over-travel in most instances.
2
3.1.1 Remove the Coarse Travel Indicator Window
Find a clean flat surface to disassemble the actuator. (Tapped hole optical
tables are not recommended since many of the parts are small and may
drop into the table). Using the manual knob, adjust the actuator to the
zero position as read on the coarse position scale as shown in Figure 1.
Remove the four M2 flat head screws holding the cover, and place them to
the side. Gently pry off the cover as shown in Figure 2.
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