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Heidenhain Controller
Spindle · Intermediate · 30-120 minutes
HEIDENHAIN 230-0434 - Unbalance trace: spindle index refers to an incorrect axis
Alarm 230-0434 occurs when the unbalance trace function references an invalid spindle axis configuration. This typically happens when the spindle index parameter points to an axis that is not properly configured as a spindle or doesn't exist in the current machine configuration.
230-0434
HEIDENHAIN 230-0434 - Unbalance trace: spindle index refers to an incorrect axis
Unbalance trace: spindle index refers to an incorrect axis
The unbalance trace has an incorrect spindle index that points to an invalid axis address. The configured index does not match any valid axis.
Root Cause Summary
Alarm 230-0434 occurs when the unbalance trace function references an invalid spindle axis configuration. This typically happens when the spindle index parameter points to an axis that is not properly configured as a spindle or doesn't exist in the current machine configuration.
Safety
- Refer to Heidenhain service manual
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Check Spindle Configuration
Navigate to MOD > Machine Parameters > Spindle Data and verify which axes are configured as spindles (typically S1, S2, etc.).
Look for parameter MP7300 series which defines spindle assignments
- 2
Verify Unbalance Trace Settings
Go to Setup > NC Settings > Unbalance Trace and check that the spindle index matches an existing configured spindle axis.
Ensure machine is in a safe state before accessing these settings
- 3
Correct Index Reference
Update the spindle index in the unbalance trace configuration to reference a valid spindle axis number from your machine parameter setup.
Call a technician if:
- ·Parameter changes don't resolve alarm
- ·Encoder hardware issues suspected
- ·Software licensing problems
Prevention
- Document spindle axis configurations before making changes
- Verify software options before enabling advanced features
- Regular backup of machine parameters
Common Mistakes
- Assuming all axes can be used as spindles
- Not checking software licensing before configuration
- Forgetting to restart control after parameter changes
Related Alarms
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