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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

ER04

PMC TYPE UNMATCH

Fanuc · Series 0i-D/0i Mate-D Maintenance

What does ER04 mean?

This Fanuc Series 0i-D/0i Mate-D PMC alarm indicates that the PMC type specified in the sequence program does not match the actual PMC hardware installed in the machine. This mismatch prevents the program from being executed correctly.

Common Causes

  • The sequence program was created or configured for a different PMC type.
  • The actual PMC hardware installed does not match the type specified in the program.
  • Incorrect PMC type selection during the programming process.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Use the PMC programmer to verify the PMC type specified within the sequence program.

  2. 2

    Confirm the actual physical PMC module installed in the machine and its specific model designation.

  3. 3

    Modify the sequence program using the PMC programmer to ensure it specifies the adequate PMC type that matches the installed hardware.

  4. 4

    Ensure that the PMC module has the correct firmware version compatible with the specified PMC type in the program.

  5. 5

    If the sequence program is correct for its intended PMC, ensure the correct PMC hardware module is installed for the machine configuration.

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Verified technical data. Last updated: April 2026

Related Faults

361ABNORMAL PHASE DATA(INT)364SOFT PHASE ALARM(INT)365BROKEN LED(INT)
Source: Fanuc Series 0i-D/0i Mate-D Maintenance
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