SLF2

PC Software Communication Interruption

Schneider Electric · Altivar Machine ATV320 Variable Speed Drive

What does SLF2 mean?

An interruption in communication with PC Software. This means the drive has lost its connection to a PC running configuration or monitoring software, preventing diagnostics, parameter changes, or firmware updates. This is typically a temporary issue during commissioning or maintenance.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Ensure the PC's firewall or antivirus software isn't blocking communication ports.

  2. 4

    Restart the PC software and power cycle the drive if necessary to re-establish connection.

Source: Schneider Electric Altivar Machine ATV320 Variable Speed Drive
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