Heidenhain codes
HeidenhainParameterIntermediate30-120 minutes

230-046F

HEIDENHAIN 230-046F - Input for axis group enabling on impermissible bus system

Input for axis group enabling on impermissible bus system

The axis-group enabling input was placed on an illegal bus system. Only HSCI-PL and internal PL are permitted.

Root Cause Summary

Alarm 230-046F occurs when the axis group enable input is incorrectly configured on an unsupported bus system in the IOC file. The axis group enable signal must be defined exclusively on HSCI-PL (Heidenhain Safe Control Interface) or internal PL systems, not on standard I/O modules or external fieldbus systems.

Safety

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

Causes and Fixes

  1. 1

    Access IOC configuration

    Navigate to MOD function → System → IOC Configuration to open the I/O configuration file.

    Always backup the current IOC file before making changes

  2. 2

    Locate axis group enable assignment

    Search for the axis group enable input definition in the IOC file and identify which bus system it's currently assigned to.

    Document the current configuration before making changes

  3. 3

    Reassign to HSCI-PL system

    Move the axis group enable input assignment from the standard I/O module to an available HSCI-PL input channel.

    HSCI-PL inputs are typically labeled as HSC_IN_x in the IOC configuration

  4. 4

    Validate and restart

    Save the IOC file, perform syntax check, and restart the control to activate the new configuration.

    Control restart required - coordinate with production schedule

DIY Feasiblehigh confidence

Call a technician if:

  • ·HSCI-PL hardware installation required
  • ·Safety system validation needed
  • ·IOC file corruption beyond repair

Prevention

  • Always use HSCI-PL or internal PL for safety functions
  • Validate IOC configuration before deployment
  • Maintain backup copies of working IOC files

Common Mistakes

  • Using standard I/O for safety functions
  • Copy-pasting IOC sections without bus system verification
  • Ignoring safety system hierarchy requirements

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