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Heidenhain Controller
Communication · Intermediate · 30-120 minutes
HEIDENHAIN 230-0488 - No assignment between handwheels and connections
Alarm 230-0488 occurs when multiple handwheels are configured in CfgHandwheel but no explicit connection assignments exist between the handwheels and their physical connections. The TNC system can only automatically assign connections when a single handwheel is configured.
230-0488
HEIDENHAIN 230-0488 - No assignment between handwheels and connections
No assignment between handwheels and connections
Multiple handwheels were configured without individual connection assignments. Auto-assignment only works with a single handwheel.
Root Cause Summary
Alarm 230-0488 occurs when multiple handwheels are configured in CfgHandwheel but no explicit connection assignments exist between the handwheels and their physical connections. The TNC system can only automatically assign connections when a single handwheel is configured.
Safety
- Refer to Heidenhain service manual
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Access handwheel configuration
Navigate to MOD function → System Parameters → CfgHandwheel to view current handwheel configuration entries.
Document existing handwheel names before making changes
- 2
Check connection assignments
Verify CfgHandwheelConn entries exist for each configured handwheel in CfgHandwheel, ensuring proper handwheel-to-connection mapping.
Backup configuration files before modifying connection assignments
- 3
Create missing connection assignments
Add CfgHandwheelConn entries for each handwheel, specifying the physical connection interface (e.g., HR550, PortMP03) for proper system recognition.
Call a technician if:
- ·Configuration file corruption requiring system recovery
- ·Hardware interface module failure
Prevention
- Always create explicit CfgHandwheelConn entries when configuring multiple handwheels
- Backup configuration files before handwheel modifications
- Document handwheel-to-connection mapping for future reference
Common Mistakes
- Assuming automatic assignment works with multiple handwheels
- Forgetting to reboot after configuration changes
- Mismatching handwheel names between CfgHandwheel and CfgHandwheelConn
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