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.

Complete Troubleshooting Guide

1. 1

   Check the communication cable connecting the remote terminal to the drive for damage or loose connections.

2. 2

   Verify the remote terminal is powered on and functioning correctly.

3. 3

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

4. 4

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