Attaching The Payload To The Stage; Electrical Installation; Air Requirements - Aerotech ABL9000 Series User Manual

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ABL/ABLH9000 Series Stage User's Manual

2.4. Attaching the Payload to the Stage

To prevent damage to payloads, test the operation of the stage before the payload is attached to the stage

table. Proceed with the electrical installation and test the motion control system in accordance with the sys-

tem documentation. Document all results for future reference. For information on electrical connections, refer

to Section 2.5. and the documentation delivered with the stage.

The payload should be flat, rigid, and comparable to the stage in quality.

N O T E : For valid system performance, the mounting interface should be flat within 1 µm per 50 mm.

Stages come from the factory completely wired and assembled. Due to the custom nature of the

ABL/ABLH9000 series stages, there is no standard wiring procedure. Each ABL/ABLH9000 stage is shipped

with documentation regarding the stage wiring, controller interface connectors, and specs for each particular

stage.

Never connect or disconnect any electrical component or connecting cable while power is

applied, or serious damage can result.

The air and vacuum supplies to the air bearing are important for the operation of the system. If compressed air

is used, it must be filtered to 0.25 microns, dry to 0ºF dewpoint, and oil free. If nitrogen is used, it must be

99.99% pure and filtered to 0.25 microns. Air pressure of 80 psi, ±5 psi, is necessary for use. Air should be

supplied via a 1/4" OD (1/8" ID) polyurethane air hose. It is recommended that a pressure switch is installed

to remove power from the air bearing if pressure drops below 40 psi because the bearing surfaces could be

damaged. Vacuum requirements are between 20" Hg and 24" Hg (approx. 1/8 hp pump). The stage can be run

without vacuum, but accuracy will be severely affected.

An air flow rate of .65 CFM at 80 psi should be observed, as well as a vacuum flow rate of .23 CFM at 22" Hg.

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Chapter 2

Installation

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