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Heidenhain Controller
System · Intermediate · 30-120 minutes
HEIDENHAIN 231-92F0 - 92F0 Incorrect axis assignment
Alarm 231-92F0 occurs when master-slave torque control axes are incorrectly assigned to incompatible encoder input pairs on the control card. The TNC system requires specific paired encoder connections based on the control card type and axis count configuration.
HEIDENHAIN 231-92F0 - 92F0 Incorrect axis assignment
92F0 Incorrect axis assignment
This TNC 640 error indicates an internal control fault. The issue relates to Incorrect axis assignment with moment master-slave operation.
Root Cause Summary
Alarm 231-92F0 occurs when master-slave torque control axes are incorrectly assigned to incompatible encoder input pairs on the control card. The TNC system requires specific paired encoder connections based on the control card type and axis count configuration.
Safety
Causes and Fixes
Identify control card type and axis count
Access MOD function, navigate to System Info to determine if using CC424, CC6106, CC6108, CC6110 and total axis configuration.
Document the exact control card part number for reference
Verify current encoder connections
Check physical encoder cable connections at control card and compare against valid pairs (e.g., X15/X17, X16/X18 for 6-axis CC424).
Power down system before checking connections
Reconfigure encoder connections
Move encoder cables to correct paired inputs according to control card specifications and update machine parameters MP1020 (axis assignment) accordingly.
Always move both master and slave encoders simultaneously to maintain pairing
Update axis assignment parameters
Modify MP1020.x entries to reflect new encoder input assignments and verify MP1030 master-slave configuration matches physical connections.
Call a technician if:
Prevention
Common Mistakes
Seeing Multiple Alarms?
Seeing another alarm with this one? Enter the code.
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