Resolution Perform the following:
1. “Removing a Drive Sled” on page 8-43
2. “Replacing a Drive Sled” on page 8-44
T017: Invalid Storage or I/O Position
Description Calibration completes and the coordinates of each storage and I/O element
are calculated. The calculated values are determined to be outside travel
limits that have been established for the robot.
Detection Scenarios Calculated element positions fail validity check against travel limits.
Root Causes
1. Calibration targets not in position.
2. Calibration sensor detects edges but is not correctly finding calibration
target edges.
Possible FRU Replacements
v Fiducial targets
v Storage Column
v Y Motor
v Y-axis Assembly
v Y-axis Cable Spool
v Picker Assembly
v Internal Cables and Boards Kit
Resolution If the problem can not be resolved using the information in this document,
perform “DR021: Contact IBM Service” on page 6-68
T018: Invalid Drive Position
Description Calibration completes and the coordinates of each drive are calculated. The
calculated values are determined to be outside travel limits that have been
established for the robot.
Detection Scenarios Calculated element positions fail validity check against travel limits.
Root Causes
1. Drive calibration target is not in position.
2. Calibration sensor detects edges but is not correctly finding calibration
target edges.
Possible CRU Replacements Drive Sled
Possible FRU Replacements
v Y Motor
v Y-axis Assembly
v Picker Assembly
v Y-axis Cable Spool
v Internal Cables and Boards Kit
Resolution If the problem can not be resolved using the information in this document,
perform “DR021: Contact IBM Service” on page 6-68
Chapter 6. Service Action Tickets (Txxx) and Diagnostic Resolutions (DRxxx) 6-11
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