• Topic ID: id_17423122
  • Version: 3.0
  • Date: Jan 20, 2020 8:35:54 PM

Cradle Characterization Procedures

Prerequisites

Overview

Procedure

  1. Move the table to the proper height position where the cradle can be inserted into the Gantry bore.
  2. Install the cradle characterization blocks as follows:
    1. Remove the following covers and component.

      • Top Right Side Cover (2 screws)

      • Table Front Bottom Cover (4 screws)

      Figure 1. Table Covers Removal

    2. Install the characterization block to the front end of the right guide rail.

      Figure 2. Front Characterization Block

    3. Install the characterization block to the rear end of the right guide rail.

      Figure 3. Rear Characterization Block

  3. Set the service switch (MODE_SEL) to the SERVICE position.
  4. Confirm that the “CRDL” LED on the GTCB board in the table is ON. If it is NOT ON, press the “Motion Target” button until “CRDL” LED is ON.
  5. Press the two “Characterize” Buttons at the same time to start characterization.
  6. Confirm that the “UP/IN” LED is ON.
  7. Using the Service Switches (Fast and Slow), move the cradle IN until the cradle and front characterization block just touch.
  8. Press the two “Characterize” Buttons at the same time.
  9. Confirm that the “DOWN/OUT” LED is ON.
  10. Using the Service Switches (Fast and Slow), move the cradle OUT until the cradle and rear characterization block just touch.
  11. Press the two “Characterize” Buttons at the same time.
  12. 5 - 10 seconds later (to write characterization data to the flash memory), confirm that both of LED's (UP/IN and DOWN/OUT) are OFF.
  13. Confirm that in syslog the cradle characterization completed and “ABS um per count” shows around 18.3 um/count

    If both of LED's blink during procedures, it means that characterization fails. Retry characterization.

  14. Remove the characterization blocks from the guide rail.
  15. When finished with characterization set the service switch (MODE_SEL) to the NORMAL position for customer use.

Finalization

  1. Install the covers in the reverse order of removal.