108

Anlg Cal Chksum

Allen-Bradley · PowerFlex 700

What does 108 mean?

The checksum read from the drive's analog calibration data does not match the checksum calculated. This indicates a corruption in the internal calibration data, which affects the accuracy of analog signal processing. The drive requires a hardware replacement to resolve this internal data inconsistency.

Common Causes

  • Checksum error detected during analog input calibration data verification.
  • Corrupted calibration data in drive memory.
  • Incorrect calibration procedure performed.
  • Analog input sensor drift causing calibration failure.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Replace the drive unit as the analog calibration data is corrupted.

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Verified technical data. Last updated: March 2026

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