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E6581442
F-49
6
6.26
Stall prevention function
6.26.1 Power running stall continuous trip detection time
: Power running stall continuous trip detection time
• Function
A function for preventing lifting gear from failing accidentally. If the stall prevention function is activated in
succession, the inverter judges that the motor has stalled and trips.
[Parameter setting]
Title
Function
Adjustment range
Default setting
Power running stall continuous trip detection time
~
sec.
Time [s]
Output frequency [Hz]
Time [s]
Output current [%]
less than
“
” trip
6.26.2 Regenerative braking stall prevention mode selection
: Regenerative braking stall prevention mode selection
• Function
A function for preventing lifting gear from stopping in the wrong position. Only the function of preventing a
stall by maintaining the current constant during regenerative braking (deceleration stop) is deactivated.
[Parameter setting]
Title
Function
Adjustment range
Default setting
Regenerative braking stall prevention
mode selection
:Stall during regenerative braking
:Not stall during regenerative braking
6.26.3 Stall prevention control switching
: Stall prevention control switching
• Function
The operation of the stall prevention control can be switched. Set
=
1
when the overvoltage trip etc.
are displayed when acceleration and the deceleration are switched.
This parameter is effective at only V/f control mode(
=
,
,
).
[Parameter setting]
Title
Function
Adjustment range
Default setting
Stall prevention control switching
: Stall prevention control
: Stall prevention control 2