14100

Check current NC program block

In HMI > Program > Editor, examine the current block and previous blocks for missing F-word before interpolation commands (G01/G02/G03).

Use the SINUMERIK search function (Ctrl+F) to quickly locate all F-words in the program.

Verify feedrate modal behavior

Check if feedrate was cancelled by G00 rapid traverse or program reset. Insert appropriate F-word before interpolation moves.

Always verify feedrate values are within machine parameter limits MD32000-MD32010.

Test program execution

Run program in single block mode (HMI > Machine > Single Block) to verify feedrate commands are properly recognized by the interpreter.

Check feedrate parameter limits

Navigate to HMI > Commissioning > Machine Data and verify MD32000 $MA_MAX_AX_VELO and MD32010 $MA_CTRLOUT_LIMIT settings.

Use MD32000[AX1] to check individual axis velocity limits.

Validate F-word values in program

Examine NC program for F0 commands or feedrates exceeding MD32000 limits. Correct invalid values within acceptable range.

Feedrate values must be positive and within 0.001-99999.999 range depending on unit settings.

Check feedrate override settings

Verify feedrate override (HMI > Machine > Override) is not set to 0% and SD42010 $SA_FEEDRATE_OVERRIDE is properly configured.

Analyze G-code modal groups

Check HMI > Diagnostics > Service > Modal Values to identify active modal states and verify proper G-code group assignments.

Use SINUMERIK modal group reference: Group 01 (G00/G01/G02/G03) cannot have conflicting codes in same block.

Review block structure

Examine NC program block for multiple conflicting G-codes and separate into individual blocks following SINUMERIK programming guidelines.

Avoid mixing rapid (G00) and feed (G01/G02/G03) commands in the same program block.

Verify program syntax

Use HMI > Program > Syntax Check to validate program structure and identify modal group violations before execution.

Verify axis configuration

Check HMI > Commissioning > Machine Data > MD20070 to ensure all programmed axes are properly defined in channel configuration.

MD20070[0-7] must match physical axis assignment for proper feedrate calculation.

Check control output settings

Validate MD30130 $MA_CTRLOUT_TYPE for each axis to ensure proper control loop configuration and feedrate processing capability.

Reset channel configuration

Perform controlled restart (HMI > Startup > Reset) after verifying machine data to reinitialize axis feedrate parameters.

Always backup machine data before making configuration changes.

Check subroutine feedrate handling

Review subroutine calls and verify feedrate modal values are properly maintained across program levels using HMI > Diagnostics > Variables.

Use $AA_FEED system variable to monitor active feedrate values during subroutine execution.

Validate macro variable usage

Examine R-parameter or local variable assignments that may affect feedrate calculation, particularly in parametric programming sections.

Test isolated subroutine execution

Execute problematic subroutine independently with explicit feedrate commands to isolate modal value inheritance issues.