Too Many Starts

What does SnbF mean?

The soft starter has exceeded the maximum number of motor starts allowed within a defined time period ('SLG' period, as configured by the 'Snb' parameter). This protection mechanism prevents excessive thermal stress on the motor and soft starter from frequent starting attempts.

Complete Troubleshooting Guide

1. 1

   Review the application's operational requirements to identify opportunities to reduce the frequency of motor starts.

2. 2

   If the application legitimately requires more frequent starts, consider adjusting the 'Snb' parameter (page 53) after careful thermal analysis, or reassess the soft starter sizing.

3. 3

   Note that a 'tbS' message will follow if a reset is attempted before the internal cooling timer expires, indicating a mandatory cool-down period is still active.