Heidenhain codes
HeidenhainToolIntermediate30-120 minutes

605-0344

HEIDENHAIN 605-0344 - Protective zone monitoring not allowed in axis system with B axis

Protective zone monitoring not allowed in axis system with B axis

This error condition indicates protective zone monitoring not allowed in axis system with b axis. The control has detected an issue that requires attention before normal operation can resume.

Root Cause Summary

Alarm 605-0344 occurs when protective zone monitoring is active in an axis system containing a B rotary axis. The TNC system cannot properly calculate tool position changes caused by rotary axis movements within the protective zone boundaries.

Safety

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

Causes and Fixes

  1. 1

    Check axis configuration

    Access MOD function and verify machine parameters MP1010-MP1050 for axis assignments. Confirm B axis is configured as rotary axis type.

    Use MP1020.x to verify the axis is set as rotary (value 1) versus linear (value 0)

  2. 2

    Review protective zone settings

    Navigate to Setup > Protective zones and check if any zones are active. Examine MP7440.x protective zone enable parameters.

    Disabling protective zones removes collision protection - ensure alternative safety measures

  3. 3

    Disable conflicting protective zones

    Set MP7440.x = 0 for protective zones that conflict with B axis operation, or reconfigure zones to exclude B axis movement areas.

    Consider using software limit switches (MP1080.x) instead of protective zones for rotary axis systems

DIY Feasiblehigh confidence

Call a technician if:

  • ·Kinematic parameters require machine-specific calibration
  • ·Safety system integration needs verification

Prevention

  • Always disable protective zones before enabling rotary axes
  • Verify kinematic configuration after any axis parameter changes
  • Use workspace monitoring instead of protective zones for multi-axis systems

Common Mistakes

  • Assuming protective zones work identically with rotary and linear axes
  • Not accounting for tool envelope changes during rotation
  • Mixing different collision monitoring systems without proper coordination

Related Alarms

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