330-00B1

Access Safe Machine Parameters

Navigate to MOD function → Machine Parameters → Safe Machine Parameters menu to review encoder assignments.

Only authorized personnel should modify safe machine parameters

Verify Encoder Input Parameters

Check parameters MP7500-MP7599 range for proper encoder input assignments. Ensure each configured axis has valid position encoder (MP75xx.0) and speed encoder (MP75xx.1) entries.

Cross-reference encoder inputs with hardware documentation to ensure physical connections match parameter settings

Validate Encoder Types

Confirm encoder type parameters match installed hardware (EnDat, 1Vpp, TTL). Check MP75xx.2 for encoder interface type consistency.

Use TNCdiag to verify encoder signals are present and stable before parameter activation

Activate Parameter Set

After corrections, activate the safe machine parameter set via MOD → Safe Machine Parameters → Activate. Monitor for successful activation without alarms.

Review PWM Output Configuration

Check safe machine parameters MP7600-MP7699 range for PWM output assignments. Verify each axis/spindle has valid PWM output channel assigned.

Document current PWM assignments before making changes for easy rollback

Verify Controller Board Assignment

Ensure PWM outputs are assigned to correct controller main board slots. Check MP76xx.3 for proper board slot assignment matching physical hardware configuration.

Incorrect board assignments can cause unexpected axis movement

Cross-Check PWM-Encoder Pairing

Verify PWM output and corresponding encoder input are assigned to same controller board. Mismatched assignments between MP75xx and MP76xx parameters will trigger this alarm.

Use systematic naming convention for PWM/encoder pairs to avoid configuration errors

Test PWM Output Functionality

Use TNCdiag PWM test functions to verify outputs are functional before activating safe parameters.

Review Hardware Configuration

Document physical controller board layout and connected axes/spindles. Note board positions and axis connections for reference.

Take photos of controller cabinet wiring for future reference

Check Axis Assignment Parameters

Verify safe machine parameters MP7400-MP7499 for correct axis-to-board assignments. Ensure logical axis names match physical connections.

Incorrect axis assignments can cause wrong axis movement during operation

Validate Spindle Assignments

Check spindle-to-board assignments in MP7450-MP7470 range. Ensure spindle parameters match actual hardware configuration and board capabilities.

Verify spindle board can handle configured spindle power and speed requirements

Update Configuration Systematically

Correct assignments one axis/spindle at a time, testing each change before proceeding to next assignment.

Compare PWM-Encoder Parameter Sets

Cross-reference PWM parameters (MP76xx series) with corresponding encoder parameters (MP75xx series) for each axis to identify mismatches.

Create a parameter comparison spreadsheet to systematically check all axis configurations

Verify Interface Compatibility

Ensure encoder interface type (MP75xx.2) is compatible with drive system connected to PWM output (MP76xx.1). Check manufacturer specifications for compatibility.

Incompatible interfaces can damage encoder or drive electronics

Check Resolution and Scaling

Verify encoder resolution parameters match drive system expectations. Incorrect scaling between encoder counts and PWM command can trigger safety violations.

Use TNCdiag position monitoring to verify encoder scaling is correct during manual axis movement

Validate Timing Parameters

Check encoder and PWM timing parameters for compatibility. Ensure sample rates and update frequencies are synchronized between encoder input and PWM output.