Sinumerik Alarm 20074 Channel %1 axis %2 wrong index position
%1 = Channel number
%2 = Axis name, spindle number
For a concurrent positioning axis declared as indexing axis, the PLC has given an index number that is not available in the table.
– Alarm display.
Please inform the authorized personnel/service department. Check the indexing axis number given by the PLC and correct this if necessary. If the indexing axis number is correct and the alarm results from an indexing position table that has been set too short, check the machine data for indexing axis declaration. Modify MD 30500: INDEX_AX_ASSIGN_POS_TAB Modify MD 10900: INDEX_AX_LENGTH_POS_TAB_1 Modify MD 10910: INDEX_AX_POS_TAB_1 Modify MD 10920: INDEX_AX_LENGTH_POS_TAB_2 Modify MD 10930: INDEX_AX_POS_TAB_2
Alarm display showing cause of alarm disappears. No further operator action
- Siemens Diagnostics Guide by Siemens