Troubleshooting; Communication Error Codes - Biotek BioStack 4 Operator's Manual

74 | Chapter 6: Troubleshooting

Troubleshooting

If the microplates are dropping improperly, hanging up, or not being picked up and
transferred as expected, here are some methods for correcting problems with non-
standard plate types that are not transferring properly:
Plate Stacked Height: when controlling the BioStack 3 or BioStack 4 (and not
l
processing lids) with Gen5, LHC or touch screen, define a custom plate stacked height
to improve the gripper's position on the plate.
Change Setting for Low-Profile Plates on page 89: change the Plate Height
l
setting.
Loosen Plate Carrier Set Screws - BioStack 4 Only on page 90
l
Adjust the Stack Dogs on page 91: physically change the gap between the plate
l
dogs.

Communication Error Codes

General Communication Errors
Depending on your configuration, you may see these errors in the Liquid Handling
Control software, Gen5 software, BioStack PC Control Software, or Precision Power
software.
Communication errors include errors found when sending messages to an
instrument, and receiving messages back from an instrument, as well as timer-based
errors when waiting for a response.
Communication Errors
Code Probable Causes
-1 General failure in talking to instrument driver software.
This error indicates that something is not correct with the driver software, or
with the communications.
Try closing the application and restarting. If this has no effect, try rebooting the
PC.
-3 Operation canceled by user.
There is a problem with the driver software or with the communications.
Try closing the application and restarting. If this has no effect, try rebooting the
PC.
-4 Unable to start delay timer associated with waiting for message response from
instrument.
This error indicates that there may be too many applications using timers on
the PC (there are only eight timers available), or the delay timer is already set.
BioStack™ Microplate Stacker
& Error Codes