TASX Bit 21 -- Bad Hall State Detected
This particular error bit has many possible causes and suggested remedies. For more in-depth information, please refer the Gemini Hardware Installation Guide or TASX Bit21 in the manual. For additional Hall state troubleshooting assistance, refer to the Gemini Hall State Checking FAQ in the sidebar by performing a search on the keyword "THALL."
REMEDY:
Hall State-checking can be disabled by entering the DHALL1 command. However, it is only disabled after the first successful Hall transistion and commutation is taken over by the encoder. This command is only valid with Gemini units using Operating System is Revision 1.72 or newer. For Gemini units using Operating System Revision 1.81 or newer, Hall State-checking is disabled by default.