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Siemens SINUMERIK Controller
Communication · Intermediate · 30-60 minutes
Siemens 14763 - Block too many link variables programmed
The number of NCU link variables programmed exceeds the maximum limit. The number is defined in MD28160 $MC_MM_NUM_LINKVAR_ELEMENTS Control reaction: Interpreter stop NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm.
14763
Siemens 14763 - Block too many link variables programmed
Block too many link variables programmed
The number of NCU link variables programmed exceeds the maximum limit. The number is defined in MD28160 $MC_MM_NUM_LINKVAR_ELEMENTS Control reaction: Interpreter stop NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm.
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
- The number of NCU link variables programmed exceeds the maximum limit.
- The number is defined in MD28160 $MC_MM_NUM_LINKVAR_ELEMENTS
Troubleshooting Steps
- 1Modify part program or machine data.
- 2Clear alarm with the RESET key. Restart part program
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Always verify with your machine manual or a certified technician before performing service procedures.