Sinumerik Alarm 16920 Channel %1 action %2 is already active
Parameters:
%1 = Channel number
%2 = Action number/action name
Definitions:
An identical action is still active.
Reactions:
– Alarm display.
Remedy:
Wait until the first procedure is terminated or abort with Reset and repeat the operation.
Program Continuation:
Clear alarm with the Delete key or NC START.
References
- Siemens Diagnostics Guide by Siemens