Cause: Overspeed Limit comes when functions such as Slip Compensation or Bus Regulation have attempted to add an output frequency adjustment greater than that programmed in [Overspeed Limit].

1. The motor operating speed exceeds the limit set by the maximum speed setting P524 [Overspeed Limit].
2. For forward motor rotation, this limit is P520 [Max Fwd Speed] + P524 [Overspeed Limit].
3. For reverse motor rotation, this limit is P521 [Max Rev Speed] - P524 [Overspeed Limit].
4. When flux vector control modes are selected in P35 [Motor Ctrl Mode], P131 [Active Vel Fdbk] determines the motor operating speed.
5. For all other non-flux vector control modes, P1 [Output Frequency] determines the motor operating speed.
6. Remove excessive load or overhauling conditions or increase [Overspeed Limit].