Sinumerik Alarm 6452 Channel %1 tool change not possible. Tool holder/spindle number = %2 not defined
%1 = Channel ID
%2 = Tool holder/spindle number
The desired tool change is not possible. The toolholder/spindle number has not been defined.
– Alarm display.
– Interface signals are set.
– Correction block is reorganized.
Check whether the toolholder number/spindle number and the magazine data have been defined correctly. (See system parameters $TC_MPP1, $TC_MPP5 of the buffer magazine)
Clear alarm with NC START or RESET key and continue the program.
- Siemens Diagnostics Guide by Siemens