Chapter 6 - Parameter Description [FU1]
6-22
Note: FU1-71 is set as the percentage of FU2-43
[Rated Motor Current].
Note: Do not set the FU1-71 higher than inverter
rated current.
Note : Stall level will be automatically reduced if
inverter is operated at the frequency higher than
base frequency.
FU1-70 [Stall Prevention Mode Selection]
Setting Range
3
rd
bit 2
nd
bit 1
st
bit
FU1-70 Description
0 0 1 001
Stall Prevention during
Acceleration
0 1 0 010
Stall Prevention during
Constant Run
1 0 0 100
Stall Prevention during
Deceleration
When FU1-70 is set to ‘111’, stall prevention works
during accelerating, steady speed and decelerating.
Note: Accel time may get longer due to stall
prevention during Accel.
Note: Inverter starts deceleration when Stop
command is applied while motor stall state
persists.
Note: Output frequency may oscillates due to stall
prevention during constant run.
Note: Decel time may get longer due to stall
prevention during Decel.
[Stall Prevention during Acceleration]
[Stall Prevention during Constant Run]
[Stall Prevention during Deceleration]
FU1-72: Accel/Decel Change Frequency
This function is used to change Accel/Decel ramp at
a certain frequency. This is useful in textile machine
application. For example, when stop command is ON
while inverter runs at 100Hz, inverter swiftly
decelerates and changes the ramp at this frequency,
leading to soft stop.
Note: If Accel/Decel change frequency is set and ‘XCEL-
L’, XCEL-M’, and XCEL-H’ defined in Programmable
digital terminals are ON, Multi Accel/Decel operation has
the priority.
Output Current
Time
Output Frequency
Time
FU1-71
[Stall level]
FU1-71
[Stall Level]
Output Current
Time
Output Frequency
Time
FU1-71
[Stall Level]
FU1-71
[Stall Level]
Time
DC Link Voltage
Time
Output Frequency
390VDC or
680V DC
FU1
►
Acc/Dec ch F
72 0.00 Hz
0.00 72
Factory Default: 0.00 Hz 0.00
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