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Check encoder compatibility in MOD function

Access MOD > Settings > Machine > Axis Configuration and verify the EnDat encoder version against the current NC software requirements.

Document the encoder serial number and firmware version before replacement

Verify encoder communication

Use the encoder test function in MOD > Diagnosis > Encoder to check if communication is established and identify the specific incompatible device.

Do not attempt to force communication with incompatible encoders as this may cause position errors

Replace encoder with compatible version

Install a new EnDat encoder with firmware compatible with your TNC software version and recalibrate using the reference point setting procedure.

Always use HEIDENHAIN genuine encoders to ensure full compatibility

Identify handwheel in device list

Navigate to MOD > Settings > Machine > Handwheel and check the HR device firmware version listed in the configuration.

The alarm message %1 parameter will specify which HR unit is incompatible

Attempt firmware update check

Access the handwheel update function in MOD > Service > Update to verify if firmware update is possible or if replacement is required.

Never interrupt a firmware update process as this can permanently damage the device

Replace handwheel unit

Install new HR handwheel compatible with current TNC software and configure handwheel parameters in machine parameter MP7500 series.

Keep the old handwheel configuration settings to quickly setup the replacement unit

Check PLC module status

Review MOD > Diagnosis > PLC to identify which interface module is flagged as incompatible and note the module type and firmware version.

Check machine parameter MP7200 for PLC interface configuration details

Verify I/O functionality

Test I/O signals through MOD > Diagnosis > Inputs/Outputs to determine if the module is still partially functional or completely non-responsive.

Incompatible PLC modules may cause unpredictable machine behavior

Replace PLC interface hardware

Install compatible PLC interface module and reconfigure I/O assignments using the original machine parameter backup from MP7200-MP7299 range.

Always backup PLC program and I/O configuration before replacing interface modules

Check spindle encoder configuration

Access MOD > Settings > Machine > Spindle and verify the encoder interface type and firmware version against TNC compatibility requirements.

Document current spindle encoder resolution and interface type from MP3010-MP3020

Test spindle encoder signals

Use MOD > Diagnosis > Spindle to monitor encoder signals and verify if position feedback is still accurate despite the compatibility warning.

Incompatible spindle encoders may cause threading and rigid tapping failures

Replace spindle encoder interface

Install new compatible spindle encoder interface and recalibrate spindle parameters using the spindle calibration procedure in MOD > Service.

Perform spindle encoder calibration immediately after replacement to ensure accurate position feedback