
axismd.ai
Heidenhain Controller
System · Intermediate · 30-120 minutes
HEIDENHAIN 900-0BD0 - Old parameters of input form removed
Alarm 900-0BD0 occurs when the TNC control detects that an input form contains more parameters than the current software version supports, typically after a software downgrade or when loading older parameter files. The system automatically removes excess parameters to maintain compatibility.
HEIDENHAIN 900-0BD0 - Old parameters of input form removed
Old parameters of input form removed
This error condition indicates old parameters of input form removed. The control has detected an issue that requires attention before normal operation can resume.
Root Cause Summary
Alarm 900-0BD0 occurs when the TNC control detects that an input form contains more parameters than the current software version supports, typically after a software downgrade or when loading older parameter files. The system automatically removes excess parameters to maintain compatibility.
Safety
Causes and Fixes
Check software version compatibility
Access MOD function and verify current software version against the parameter file version in Setup General.
Document software versions before any upgrades or downgrades
Review removed parameters
Check the alarm log details to identify which specific parameters were removed from the input form.
Do not ignore removed parameters as they may affect machining operations
Recreate missing parameters
Manually re-enter the removed parameters using current software-compatible parameter structure in Setup Machine Parameters.
Save parameter backup files after each successful configuration
Validate parameter functionality
Test all machine functions to ensure removed parameters haven't affected critical operations like spindle control or axis movement.
Call a technician if:
Prevention
Common Mistakes
Seeing Multiple Alarms?
Seeing another alarm with this one? Enter the code.
AxisMD logs alarms against your actual machines, tracks patterns, and gives AI context your manual doesn't have.
Start freeWas this guide helpful?
Always verify with your machine manual or a certified technician before performing service procedures.