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Heidenhain Controller
Tool · Intermediate · 30-120 minutes
HEIDENHAIN 605-0344 - Protective zone monitoring not allowed in axis system with B axis
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.
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
Causes and Fixes
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)
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
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
Call a technician if:
Prevention
Common Mistakes
Seeing Multiple Alarms?
Seeing another alarm with this one? Enter the code.
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