Sinumerik Alarm 6434 Channel %1 block %2 NC command SETMTH not allowed because tool holder function not active
%1 = Channel number
%2 = Block number, label
No master toolholder has been defined for the initial state ($MC_TOOL_MANAGEMENT_TOOLHOLDER = 0), therefore no toolholder is available. The NC command SETMTH has neither been defined. In this setting, the tool change is carried out referring to the master spindle. The master spindle is set with SETMS.
– Local alarm reaction.
– Alarm display.
– Interface signals are set.
– Correction block is reorganized.
Correct the NC program (delete or replace SETMHT) or enable toolholder function via machine data.
Clear alarm with NC START or RESET key and continue the program.
- Siemens Diagnostics Guide by Siemens