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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.

93

Hardware Enable Fault

Allen-Bradley · PowerFlex 700

What does 93 mean?

The hardware enable input is disabled (logic pin is low) despite being jumpered high. This indicates a contradiction in the hardware enable status, preventing the drive from operating.

Common Causes

  • External hardware enable signal is missing or faulty.
  • Internal safety interlock activated.
  • Fault in the drive's hardware enable circuit.
  • Configuration error for hardware enable input.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the hardware enable jumper connection.

  2. 2

    Replace the Main Control Board.

Browse all codes in this manual (49)
Verified technical data. Last updated: April 2026

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100Parameter Checksum Error101UserSet1 Chksum102UserSet2 Chksum
Source: Allen-Bradley PowerFlex 700
Open Manual (Page 85)Search more codes in this manual