1-15

1769 power supply invalid configuration or failure

Allen-Bradley · Logix 5000

What does 1-15 mean?

This fault occurs when a 1769 power supply is connected directly to the controller's 1768 CompactBus with an invalid configuration, or if the 1768 power supply powering the controller has failed. This affects the controller's power integrity.

Common Causes

  • A 1769 power supply is connected directly to the controller’s 1768 CompactBus, with an invalid configuration
  • The 1768 power supply powering the controller has failed

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Remove the power supply from the 1768 CompactBus and cycle power to the system.

  2. 2

    Replace the power supply.

Browse all codes in this manual (60)
Verified technical data. Last updated: March 2026

Related Faults