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Heidenhain Controller
Communication · Intermediate · 30-120 minutes
HEIDENHAIN 235-00A7 - Überzähliges Modul in HSCI-Gerät
HEIDENHAIN alarm 235-00A7 indicates that the TNC has detected additional hardware modules on an HSCI device that are not configured in the system's hardware configuration. This occurs when physical modules are installed but not properly defined in the machine parameters or when incorrect option settings are active.
235-00A7
HEIDENHAIN 235-00A7 - Überzähliges Modul in HSCI-Gerät
Überzähliges Modul in HSCI-Gerät
In an HSCI device, extra modules are present that were not configured. These unprojected modules need to be removed or the configuration updated.
Root Cause Summary
HEIDENHAIN alarm 235-00A7 indicates that the TNC has detected additional hardware modules on an HSCI device that are not configured in the system's hardware configuration. This occurs when physical modules are installed but not properly defined in the machine parameters or when incorrect option settings are active.
Safety
- Refer to Heidenhain service manual
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Access Hardware Configuration
Press MOD key, select 'Machine Parameters', navigate to MP7200-MP7299 hardware configuration parameters.
Document current settings before making changes
- 2
Verify HSCI Module Configuration
Check MP7210.x (HSCI configuration) parameters against physically installed modules at the reported HSCI address.
Incorrect configuration can cause axis malfunction
- 3
Update Module Configuration
Set appropriate MP7210.x parameters to match installed hardware modules, ensuring slot assignments correspond to physical installation.
- 4
Restart Control System
Perform complete TNC restart to activate new hardware configuration settings.
Call a technician if:
- ·Software option licensing required
- ·Hardware removal requires electrical modifications
- ·Multiple HSCI devices affected
Prevention
- Always update machine parameters when adding/removing hardware modules
- Maintain accurate documentation of installed options
- Verify software licenses before hardware installation
Common Mistakes
- Forgetting to restart TNC after parameter changes
- Removing modules without checking dependencies
- Modifying hardware configuration without backup
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Always verify with your machine manual or a certified technician before performing service procedures.