LSIS LSLV-S100 - Page 269

Learning Protection Features
255
Code
Description
0010
Stall
protection
while
operating at
constant
speed
Similar to stall protection function during
acceleration, the output frequency automatically
decelerates when the current level exceeds the
preset stall level while operating at constant speed.
When the load current decelerates below the
preset level, it resumes acceleration.
0100
Stall
protection
during
deceleration
The inverter decelerates and keeps the DC link
voltage below a certain level to prevent an over
voltage fault trip during deceleration. As a result,
deceleration times can be longer than the set time
depending on the load.
1000
Flux braking
during
deceleration
When using flux braking, deceleration time may be
reduced because regenerative energy is expended
at the motor.
1100
Stall
protection
and flux
braking
during
deceleration
Stall protection and flux braking operate together
during deceleration to achieve the shortest and
most stable deceleration performance.
Pr.51 Stall Freq 1-
Pr.58 Stall Level 4
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