Remote Terminal Communication Interruption

What does SLF3 mean?

An interruption in communication with the remote terminal (HMI). This means the drive has lost its connection to its human-machine interface, preventing local control, status monitoring, or parameter adjustments from the HMI. The drive may still operate if controlled externally.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Ensure communication parameters (e.g., address, baud rate) are consistent between the drive and the terminal.

2. 4

   Re-seat the remote terminal or its connection module securely.