230-01BA

Access Machine Parameters

Navigate to MOD function → Machine Parameters → CfgAxes configuration menu to review axis parameter settings.

Use the search function in machine parameters to quickly locate speedEncoderInput parameters across all axes.

Check Speed Encoder Assignments

Review ParamSet→speedEncoderInput parameter for each configured axis and identify which axes share the same input number.

Document current settings before making changes to avoid losing working configurations.

Reassign Conflicting Input

Change the speedEncoderInput parameter for one of the conflicting axes to an unused encoder input number.

Verify physical encoder connections match the parameter assignments before finalizing changes.

Validate Configuration

Save parameters and restart the TNC to verify the alarm clears and all axes function correctly with their assigned encoder inputs.

Review Recent Hardware Changes

Identify any recent axis additions, encoder replacements, or drive system modifications that may have affected encoder input assignments.

Ensure machine is in safe state and all axes are properly homed before parameter changes.

Verify Physical Encoder Connections

Check actual encoder cable connections at the TNC and compare with CfgAxes→ParamSet→speedEncoderInput parameter settings for each axis.

Use the TNC's encoder diagnostic functions to verify signal quality on each input before reassignment.

Update Encoder Input Parameters

Correct the speedEncoderInput parameters to match the actual physical encoder connections, ensuring each axis has a unique input assignment.

Create a wiring diagram documenting the encoder input assignments for future reference.

Test Axis Movement

Perform controlled axis movements to verify proper encoder feedback and position accuracy after parameter corrections.

Compare Current vs Backup Configuration

Access MOD → Machine Parameters and compare current CfgAxes settings with the restored backup to identify parameter conflicts.

Use the TNC's parameter comparison function if available to highlight differences between configurations.

Identify Hardware Differences

Determine if hardware configuration has changed since backup creation, particularly encoder input connections or axis quantity.

Never assume backup parameters are correct for current hardware configuration without verification.

Manually Correct Encoder Assignments

Adjust speedEncoderInput parameters in CfgAxes→ParamSet to match current hardware configuration and eliminate duplicate assignments.

Start with the lowest numbered axes and assign encoder inputs sequentially to avoid confusion.

Create Updated Backup

Save corrected parameters and create new backup file reflecting current hardware configuration for future use.

Review Axis Configuration Logic

Examine the complete CfgAxes configuration to understand the intended encoder input assignment scheme for all machine axes.

Document the machine's physical axis layout and encoder connections before making parameter changes.

Verify Encoder Input Availability

Check TNC hardware specifications and available encoder inputs to ensure sufficient inputs exist for all configured axes.

Confirm encoder input specifications match the installed encoder types before assignment.

Systematically Assign Encoder Inputs

Configure speedEncoderInput parameters sequentially, ensuring each axis receives a unique input number corresponding to its physical connection.

Use a logical numbering scheme that matches the machine's axis naming convention for easier troubleshooting.

Validate Complete System Operation

Test all axes individually and in coordinated motion to verify proper encoder feedback and system functionality.

Identify Source of Parameter Duplication

Review CfgAxes→ParamSet configurations to determine which axes have identical speedEncoderInput values and identify the likely source axis.

Look for other identical parameters between axes that might indicate copy-paste operations.

Determine Correct Input Assignments

Reference machine documentation or physical encoder connections to determine the correct speedEncoderInput value for each affected axis.

Verify encoder signal compatibility and wiring before changing input assignments.

Update Duplicate Parameters

Modify the speedEncoderInput parameter for the incorrectly configured axis to match its actual encoder connection.

Double-check all other axis-specific parameters when correcting copy-paste errors to ensure complete accuracy.

Implement Parameter Review Process

Establish verification procedures for future parameter changes to prevent similar copy-paste configuration errors.