Additional stall protection levels can be configured for different frequencies,
based on the load type. As shown in the graph below, the stall level can be set
above the base frequency. The lower and upper limits are set using numbers
that correspond in ascending order. For example, the range for Stall
Frequency 2 (Stall Freq 2) becomes the lower limit for Stall Frequency 1
(Stall Freq 1) and the upper limit for Stall Frequency 3 (Stall Freq 3).
Note
Stall protection and flux braking operate together only during deceleration. Turn on the third and
fourth bits of PRT-50 (Stall Prevention) to achieve the shortest and most stable deceleration
performance without triggering an over voltage fault for loads with high inertia and short
deceleration times. Do not use this function when frequent deceleration of the load is required,
as the motor can overheat and be easily damaged.