Okuma Alarm A-1722 – M19 Command Issued When Gear Is in Neutral

Okuma Alarm A-1722 indicates that the spindle orientation command (M19) has been issued while the spindle drive gear is in the neutral position. This prevents the machine from performing the required operation.

Meaning of the Alarm

This alarm occurs when the control system detects that the M19 command is executed while the gear is not engaged. Since spindle orientation requires an active gear position, the operation cannot be completed.

Possible Causes

  • Spindle gear is in neutral position

  • Incorrect machine state when M19 is executed

  • Gear engagement system malfunction

  • Incorrect sequence in CNC program

  • Sensor or signal issue detecting gear position

Recommended Checks

  • Verify that the spindle gear is properly engaged

  • Check machine status before executing M19

  • Review CNC program sequence

  • Inspect gear engagement mechanism

  • Check sensors related to gear position detection

When Professional Service Is Required

If the alarm persists after verifying the gear position and program sequence, the issue may be related to mechanical or control system faults. In such cases, professional diagnostics are recommended.

Related Solutions

  • CNC diagnostics and troubleshooting

  • Spindle system inspection

  • Gear engagement system repair

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