7510

Comm Module Fault

ABB · ACS800 Standard Firmware

What does 7510 mean?

Cyclical communication between the drive and the master control system is lost. This indicates a disruption in the fieldbus communication link, potentially due to incorrect parameter settings, physical cable issues, or a problem with the master device itself. Loss of communication can halt drive operation if the master control is critical.

Common Causes

  • Communication module failure or malfunction.
  • Faulty connection or wiring to the communication module.
  • Internal error within the communication module's firmware.
  • Power supply issue to the communication module.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the status of fieldbus communication via the drive's display or fieldbus monitoring tools.

  2. 2

    Check parameter settings in group 51 (COMM MODULE DATA) for the fieldbus adapter or group 52 (STANDARD MODBUS) for Standard Modbus Link.

  3. 3

    Review Fault Function parameters 30.18 (COMM FLT FUNC) and 30.19 (MAIN REF DS T-OUT) for proper configuration.

  4. 4

    Inspect all fieldbus cable connections for integrity, ensuring they are securely attached and undamaged.

  5. 5

    Confirm the master device's ability to communicate on the fieldbus network by checking its operational status.

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Verified technical data. Last updated: March 2026

Related Faults

Source: ABB ACS800 Standard Firmware