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Heidenhain Controller
Spindle · Intermediate · 30-120 minutes
HEIDENHAIN 230-00D4 - During active synchronism, a spindle cannot be used as an axis
Alarm 230-00D4 occurs when the TNC attempts to use a spindle as an interpolating axis while spindle synchronism is active. This conflict arises because the spindle cannot simultaneously maintain synchronous operation and perform independent axis movements.
230-00D4
HEIDENHAIN 230-00D4 - During active synchronism, a spindle cannot be used as an axis
During active synchronism, a spindle cannot be used as an axis
While spindle synchronism is active, one of the synchronized spindles was commanded to act as an interpolating axis. This mode mixture is not allowed.
Root Cause Summary
Alarm 230-00D4 occurs when the TNC attempts to use a spindle as an interpolating axis while spindle synchronism is active. This conflict arises because the spindle cannot simultaneously maintain synchronous operation and perform independent axis movements.
Safety
- Refer to Heidenhain service manual
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Check spindle synchronism status
Press MOD key, select 'Machine' menu, check 'Spindle synchronism' display for active sync modes.
Look for SYNCH indicator in the status bar - it should be OFF for axis operations
- 2
Cancel synchronism mode
Execute M5 to stop spindle, then M30 or program reset to clear synchronism state before attempting M19.
Ensure workpiece is secure before canceling synchronism
- 3
Verify machine parameter MP7440
Check MP7440 SYNC_CANCEL_WITH_M5 is set to 1 to automatically cancel synchronism with M5 command.
Setting MP7440=1 prevents this conflict in future programs
Call a technician if:
- ·Parameter changes required
- ·Hardware encoder issues
- ·PLC program modifications needed
Prevention
- Always use M5 before M19 commands
- Set MP7440=1 for automatic sync cancellation
- Include dwell time after spindle stop commands
Common Mistakes
- Forgetting M5 after threading cycles
- Assuming M19 automatically cancels synchronism
- Not allowing sufficient time for sync termination
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Always verify with your machine manual or a certified technician before performing service procedures.