Heidenhain codes
HeidenhainCommunicationIntermediate30-120 minutes

235-00A1

HEIDENHAIN 235-00A1 - Falsches Modul in HSCI-Gerät

Falsches Modul in HSCI-Gerät

In an HSCI device, modules do not match the configuration. The installed modules differ from what was projected.

Root Cause Summary

HEIDENHAIN alarm 235-00A1 occurs when the physical HSCI module configuration doesn't match the projected configuration in the TNC control. This mismatch between expected and actual hardware modules at specific HSCI addresses prevents proper system initialization.

Safety

  • Refer to Heidenhain service manual
  • Ensure qualified technician performs repairs

Causes and Fixes

  1. 1

    Access MOD Parameters

    Navigate to Setup → General → Machine Parameters → MOD and check the HSCI configuration parameters for the reported address %3.

    Document current MOD settings before making changes for easy rollback.

  2. 2

    Verify Physical Module Type

    Check the actual module type installed at HSCI slot position matching address %3 and compare with the alarm's Hardware: %2 information.

    Power down the control before inspecting HSCI modules to prevent damage.

  3. 3

    Correct MOD Configuration

    Update the relevant MOD parameters to match the physical hardware configuration, then perform a control restart to reinitialize the HSCI system.

DIY Feasiblehigh confidence

Call a technician if:

  • ·Multiple HSCI modules showing configuration errors
  • ·Parameter changes don't resolve the alarm
  • ·Physical module replacement required but not available

Prevention

  • Always document HSCI configuration before making changes
  • Verify module part numbers before installation
  • Maintain backup of working machine parameters

Common Mistakes

  • Changing MOD parameters without understanding the physical hardware layout
  • Installing modules without powering down the system
  • Not verifying HSCI address sequence after module changes

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Always verify with your machine manual or a certified technician before performing service procedures.