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ErrorLib — Industrial Fault Code Library

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-3

Timeout - Device Not Reacting

Kuka · KR C4 PROFIBUS

What does -3 mean?

The device did not respond within the allocated timeout period (default 2 seconds) during a coupling or decoupling operation. This indicates a communication issue or the device being physically unavailable.

Common Causes

  • Communication timeout waiting for device response.
  • Target device failed to acknowledge communication request within expected timeframe.
  • Intermittent network issues or device malfunction causing lost packets.
  • Incorrect device configuration or power supply problems preventing response.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check if the device is physically connected to the PROFIBUS line.

  2. 2

    Verify the device's power supply voltage.

  3. 3

    Increase the timeout time for device activation using the `ioCtl("SYS-X44_PB-Master1", &H8008, [timeout_ms])` command, specifying the timeout in milliseconds.

Browse all codes in this manual (19)
Verified technical data. Last updated: April 2026

Related Faults

-1General Error During ioCtl-2Device Address Not Found10039PROFIBUS Master Error in Module
Source: Kuka KR C4 PROFIBUS
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