FANUC codes
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FANUC Controller

Spindle · Intermediate · 5-30 minutes

Alarm 597

Fanuc 597 - Spindle touch probe error

Alarm 597 indicates a communication or signal failure between the CNC and the touch probe mounted in the spindle. This typically occurs when the probe signal is not received, interrupted, or the probe hardware/wiring has failed during a probing cycle.

FANUCSpindleIntermediate5-30 minutes

597

Fanuc 597 - Spindle touch probe error

SPINDLE TOUCH PROBE ERROR

Fanuc spindle alarm 597: SPINDLE TOUCH PROBE ERROR. The spindle drive or spindle motor has detected a fault condition that requires diagnosis before spindle operation can resume.

Root Cause Summary

Alarm 597 indicates a communication or signal failure between the CNC and the touch probe mounted in the spindle. This typically occurs when the probe signal is not received, interrupted, or the probe hardware/wiring has failed during a probing cycle.

Safety

  • Verify corrected program or parameters before resuming machining

Causes and Fixes

  1. 1

    Power off the machine and lock out. Visually inspect the probe cable from the spindle nose through the rotary union for wear, cuts, or disconnection.

    Ensure machine is fully powered down and locked out before inspection

  2. 2

    Check all connectors at the probe body, rotary union, and control cabinet for loose pins, corrosion, or damage. Reseat all connections firmly.

  3. 3

    Using a multimeter, perform a continuity test on the probe signal wires from the probe battery/transmitter through to the receiver module with spindle stationary.

  4. 4

    Rotate the spindle slowly by hand while monitoring continuity to detect intermittent breaks. Replace cable assembly if any intermittent or open circuit is found.

    Ensure spindle brake is released before manual rotation

Service Recommended confidence

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Always verify with your machine manual or a certified technician before performing service procedures.