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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 12641 - Block maximum nesting depth of control structures exceeded
Max. nesting depth control structures (IF-ELSE-ENDIF, LOOP-ENDLOOP etc.) exceeded. At the present time, the max. nesting depth is 8 Control reaction: Interpreter stop NC Start disable in this channel. Interface signals are set. Alarm display.
12641
Siemens 12641 - Block maximum nesting depth of control structures exceeded
Block maximum nesting depth of control structures exceeded
Max. nesting depth control structures (IF-ELSE-ENDIF, LOOP-ENDLOOP etc.) exceeded. At the present time, the max. nesting depth is 8 Control reaction: Interpreter stop NC Start disable in this channel. Interface signals are set. Alarm display.
Safety
- Only qualified personnel should diagnose and clear control alarms; follow the machine builder's safety procedures and lockout/tagout where hardware work is required.
Common Causes
- Max. nesting depth control structures (IF-ELSE-ENDIF, LOOP-ENDLOOP etc.) exceeded.
- At the present time, the max. nesting depth is 8
Troubleshooting Steps
- 1Correct part program.
- 2If necessary, move parts to a subroutine.
- 3Clear alarm with the RESET key. Restart part program
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