Agilent Technologies BioCel 1200, Руководство пользователя

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89 Chapter 6: Maintenance and troubleshooting
BioCel User Guide
Plate sensor error
recovery
Before you can recover from a plate sensor error, you must establish the
cause of the error.
To recover from a plate sensor error:
1. If there is no plate in the gripper, establish whether the plate was:
‹
Knocked out of the gripper.
In this case, establish what knocked the plate out of the gripper.
‹ Missing from the location that the robot attempted to pick it up
from.
In this case, place the correct plate in the location and click
Retry in the
Robot Error dialog box.
‹ Not picked up.
In this case, there may be a problem with either the labware
definition for the plate or a teachpoint. Check the teachpoint at
the position where it failed to pick up the plate, and also the
teachpoint at the previous position. If there does not seem to be
a teachpoint error, contact Velocity11.
2. If the plate is held in the gripper but is not seated correctly, establish
whether the plate was positioned correctly at the pickup location.
‹
If the plate was not positioned correctly at the pickup location,
reposition the plate and click
Retry in the Robot Error dialog box.
‹
If the plate was positioned correctly at the pickup location, there
may be a problem with the approach or departure height.
Alternatively, there might be a problem with the plate, the
labware definition for the plate, a teachpoint, or the plate sensor.
In this case, you should contact Velocity11.
Servo error recovery
The robot’s motion is controlled by a servo system that cuts power to the
robot if it encounters resistance to movement that is slightly higher than
that expected from just the inertia of the robotic arm holding a plate.
Additionally, when the power is cut, a servo error is generated.
The great majority of servo errors occur when the plate being carried
crashes into another plate sitting on a device.
To recover from a servo error:
1. Check the BioCel deck to determine the cause of the collision and
remove the obstruction. For example, it may be a plate from a
previous run.
2. Check the plate being held by the robot to make sure that it has not
been damaged or spilled.
3. Check to be sure that the plate did not slip in the grippers during the
collision.
4. If the plate has not slipped and was not damaged during the
collision, click
Retry .