Asyst Technologies VersaPort 2200, Technical Manual

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Released Rev. C 2000-1252-01 Page 89
VersaPort 2200 Technical Manual
Chapter 4: Service
CAP4 – Calibrate Shuttle Homing Offset
a
_____10. Remove the inner-most shield by removing the six screws (two each side, two
at connector panel) and lifting slightly and sliding the shield away from the
VersaPort.
Adjust Cassette Shuttle Home Position
NOTE . . .
T
HIS PROCESS SHOULD BE DONE ONLY WHEN NEITHER THE PORT DOOR NOR
THE PORT PLATE CAN BE POSITIONED PROPERLY TO THEIR
H
OME POSITIONS
,
OR AFTER RECEIVING A
“C
ANNOT CALIBRATE
H
OME
”
COMMAND FROM THE
ISIM
SOFTWARE
.
_____1. Remove the cassette shuttle motor cover by removing the two button head
screws on the top of the cover.
_____2. Disable the servo motor controls for the elevator and cassette shuttle to allow
manual movement:
_____a. From the Manual Menu, select F1 (SERVO CTRL)
_____b. At the dialog box, use arrow keys to select DISABLE SERVO and press
ENTER .
_____3. Release the brake:
_____a. From the Manual Menu, select F6 (DC MOTOR)
_____b. At the dialog box, use arrow keys to select RELEASE BRAKE and press
ENTER .
_____4. At the shuttle motor, verify the shuttle sensor is pushed as far toward the
Process Tool opening as possible. Loosen the screws on the sensor and slide
toward the opening. Tighten screws.
_____5. Remove the vertical lead screw cover by removing the two hex screws
securing it to the enclosure.
_____6. Begin to lower the port plate toward the port door by rotating the vertical lead
screw pulley by hand. As the port plate nears the port door, adjust the position
of the port door to center it relative to the port plate by rotating the shuttle lead
screw pulley by hand.
_____7. When the port door is centered in the port plate, read the current cassette
shuttle position:
_____a. From the Main Menu, select F5 (STATUS)
_____b. From the Status Menu, select F9 (MOTOR STATUS)
_____c. A dialog box appears. Read down the list to the line containing the
“SERVO AXIS 1” value. Use the right arrow key if necessary to see the
value on the line. The value is expressed in mils (thousandths of inches).
Write down the value. Press
ESC to clear the dialog box.