Introduction

Use this guide to correct reversed PE layers on an induction lane and restore case diversion performance. Follow the steps below to verify wiring, restart key devices, and check the most common causes of scan tunnel and diversion faults.

Issue description

This issue occurs when the PE layers on the induction lane are reversed or when cases are no longer diverting as expected. In many sites, the root cause is related to wiring at the specified Ts, scan tunnel operation, CPXXA status, encoder performance, or Ethernet connectivity.

Signs

• Induction lane PE layers appear reversed.
• Cases are not diverting correctly.
• Scan tunnel readings are inconsistent or unavailable.
• CPXXA is not responding as expected.
• Encoder data is missing, unstable, or incorrect.
• Ethernet communication issues are present.

Basic troubleshooting steps

• Verify that the induction lane PE layers are wired correctly at the specified Ts.
• Check whether the scan tunnel has power and is operating normally.
• Confirm that the CPXXA is powered and communicating.
• Inspect the scan tunnel PE for proper operation.
• Inspect the encoder for proper operation.
• Check all Ethernet cables for damage, loose connections, or routing issues.

Advanced troubleshooting steps

Step 1: Correct the reversed PE layers

Swap the wires at the specified Ts to restore the correct PE layer orientation. After rewiring, confirm that the lane sensors are reading in the proper sequence and that the induction lane is detecting cases as expected.

Step 2: Power cycle the scan tunnel and CPXXA

If cases are still not diverting, power cycle the scan tunnel and CPXXA. Allow both devices to fully restart, then verify that communication and case flow return to normal.

Step 3: Check the scan tunnel PE and encoder

Inspect the scan tunnel PE and encoder for proper operation. Confirm that both devices are mounted correctly, free of obstruction, and producing valid signals. Replace or repair any component that is not functioning properly.

Step 4: Inspect Ethernet connectivity

Check for Ethernet cable issues, including loose connectors, damaged cables, or intermittent links. Reseat connections and replace any suspect cable before retesting case diversion.

Contact support

If the issue continues after completing the steps above, contact Fidus Global support with the following details: site name, lane location, observed symptoms, recent changes, and any alarm or fault messages.

Additional information

For faster resolution, document the wiring change made at the specified Ts, the results of the scan tunnel and CPXXA power cycle, and any encoder or Ethernet findings. This information helps technical support isolate the fault and recommend the next action.

Disclaimer

Perform troubleshooting only in accordance with your site safety procedures and lockout or electrical safety requirements. If you are unsure about any step, use qualified personnel or contact support for assistance.