Sinumerik Alarm 21660 Channel %1 block %2 axis %3 conflict between SYNACT: $AA_OFF and CORROF

Sinumerik Alarm 21660 Channel %1 block %2 axis %3 conflict between SYNACT: $AA_OFF and CORROF

Parameters:
%1 = Channel number
%2 = Block number, label
%3 = Axis name

Definitions:
When deselecting the position offset ($AA_OFF) via the part program command COR- ROF (, “AA_OFF”) an active synchronized action is detected that immediately sets $AA_OFF for the axis (DO_$AA_OFF [] =). Deselection is executed and $AA_OFF not set again.

Reactions:
– Local alarm reaction.
– Alarm display.
– Interface signals are set.
– Correction block is reorganized.
– NC Stop on alarm at block end.

Remedy:
Modify part program.

Program Continuation:
Clear alarm with NC START or RESET key and continue the program.