Motor Overload / Cycle Monitoring Trip

What does 84 mean?

This fault indicates various forms of motor overload or overtemperature protection. It can be triggered by cyclical monitoring exceeding limits (due to frequent starts/stops or high load), by UL protection functions detecting time violations of current limits (e.g., 750% IN,unit), or by the internal motor temperature simulation reaching 110% utilization. These protections safeguard the motor and drive from damage due to excessive mechanical load, demanding duty cycles, or insufficient cooling. Unresolved overload conditions lead to reduced motor lifespan and potential drive unit failure.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Adjust the soft startup time parameter, if applicable, to reduce peak current demands during acceleration, especially if related to UL protection functions.

2. 4

   Improve the ambient cooling conditions around the motor(s) and ensure any cooling fans are operational; allow the motor(s) to cool down completely before resetting the error.