T139: Robotics Communication Loss
Description
This ticket occurs with
Model 1
robots only.
GUI Description: The library controller firmware lost communication with
the robotics subsystem.
Explanation: The library has lost communication with the Model 1 robotics
subsystem. This ticket is generated if the library had previously established a
communication link with the robotics subsystem, but that link has now been
lost and cannot be reestablished.
Detection Scenarios
The library firmware did establish communication with the robotics
subsystem but encountered a communication failure during operation and
communication could not be reestablished.
Root Cause
1.
An intermittent door-open condition disconnecting power from the robot.
2.
Damaged module terminator or module-to-module cable with bent or
broken pins.
3.
A cable spool or connection problem.
4.
A picker assembly hardware failure.
5.
A Y-carriage assembly connection problem.
6.
An LCB serial communication link failure.
Possible CRUs
v
Robot Assembly (replace entire unit)
Possible FRU Replacement
v
Module Terminators and Module-to-Module Cables
v
Cable Spool
Resolution
1.
Perform “DR093: Resolve Robotics Communication Error” on page 6-88.
2.
Check to see if there is a main door open condition, which may be
caused by an open door or a defective or loose module terminator or
module-to-module cable.
3.
Inspect the module terminators and module-to-module cables for loose
connectors or damage (bent or broken pins). If damaged, replace the part.
Reseat the terminators and cables.
T141: Unknown Picker Calibration Offsets
Description
GUI Description: Library firmware is unable to read robotics picker's
calibration offsets.
Explanation: The picker's EEPROM/FLASH that contains calibration offset
values required for proper picker calibration and fiducial size evaluation,
does not contain valid calibration offsets. If such offsets are missing and
cannot be read, the robot will fail calibration and cannot operate.
Detection Scenarios
Attempts to read the stored calibration offsets from EEPROM/FLASH of the
robotics controller board failed.
Root Cause
1.
Defective EEPROM/FLASH area to read offsets.
2.
Calibration offsets not stored during manufacturing process.
Possible FRU Replacement
Picker Assembly
Resolution
Perform “M2 Picker Assembly” on page 8-72 for M2 picker or “Original
Picker Assembly” on page 8-59.
6-56
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