E6581169
- 5E -
6. Function of parameter H
H
= 0 mode (stall in regeneration)
H
= 1 mode (stall is prevented in regeneration)
Frequency [Hz]
Time [s]
Time [s]
Stall prevention
trip level
When stall prevention
is not activated
Operation frequency
Output current [%]
If stall prevention trip takes
place in winding up operation
(in regeneration), output
current is automatically
increased in order to control
the current. If worst comes to
worst, the load may fall.
Falling direction in winding
down operation of lifting
machines.
Stall prevention is controlled
only in winding down operation
(in regeneration) in order to
prevent the load from falling
and other accidents caused by
unexpected rise in the output
frequency.
When the inverter is used in combination with a lifting machine (crane, hoist, etc.), this function
controls stall prevention in winding down operation (in regeneration) in order to prevent the load from
falling and accident caused by unexpected speed change.
Frequency [Hz]
Time [s]
Time [s]
Stall prevention
trip level
When stall prevention
is not activated
Operation frequency
Output current [%]
When output current increases, the
load is prevented from falling by
QE trip and QN trip.
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