Agilent Technologies Bravo Platform User Manual page 93

4 Maintenance and troubleshooting
Troubleshooting hardware problems
Bravo gripper problems
Problem
The gripper holds the labware
loosely, does not keep it level, or
drops the labware while moving
between locations.
The robot attempts to grip too
high or low on the labware.
The labware does not sit level
within the platepad.
The gripper cannot pick or place
labware at a location.
The head or gripper movement is
rough or strained, or rubbing or
scraping noises are audible
during moves.
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Potential cause
The labware definition has errors.
The gripper pads (black rubber) on
the interior side of each gripper
finger are dirty, worn, or partially
out of alignment.
The gripper fingers are bent or
misaligned.
If this problem occurs at all Bravo
locations, the Bravo gripper range
in the labware definition requires
adjustment.
If the problem is specific to a
particular Bravo location, the
location might require a teachpoint
adjustment.
An obstruction is preventing
proper seating of the labware.
The labware does not match the
specified labware definition, or the
labware might be damaged or
deformed.
The location requires a gripper
teachpoint adjustment.
The Bravo Platform might require
service.
Solution
Verify that the labware definition is
correct.
See the VWorks Automation Control
Setup Guide.
Gently clean the gripper pads using a
soft cloth dampened with water.
Inspect the gripper pads for wear and
ensure they are aligned.
If necessary, contact Agilent
Automation Solutions Technical
Support to replace the gripper pads.
Perform a visual inspection to ensure
the gripper fingers are aligned and
are not bent.
If necessary, contact Agilent
Automation Solutions Technical
Support.
Verify that the labware definition is
correct.
See the VWorks Automation Control
Setup Guide.
Verify that the location teachpoint is
correct. See "Setting teachpoints" on
page 34.
Verify that the setscrews in the
platepad tabs are recessed and not
protruding into the plate nest. A
protruding setscrew will prevent
proper seating of the labware.
Verify that the correct labware is on
the deck, in good condition, and
corresponds to the selected labware
definition.
See "Setting teachpoints" on page
Contact Agilent Automation
Solutions Technical Support.
Bravo Platform User Guide
34.