Function of Each Parameter
19
Stall Prevention Level during Acceleration (n56)
Set the operation level of a function to stop the acceleration of
the motor automatically for stall prevention during acceleration.
Set this value in percentage based on the rated output current of
the Inverter as 100%.
Value
Name
Setting
range
30 to 200
Unit of
setting
1%
Default
settings
170
n56
Stall Prevention Level
during Acceleration
Stall Prevention during Acceleration
Output
current
n56
Time
Output
frequency
The output frequency is
controlled so that the
Inverter will not stall.
Time
Stall Prevention Level during Operation (n57)
Select the operation level of a function to reduce the output fre-
quency of the Inverter automatically for stall prevention during
operation. Set this value in percentage based on the rated output
current of the Inverter as 100%.
Value
Name
Setting
range
30 to 200
Unit of
setting
1%
Default
settings
160
n57
Stall Prevention Level
during Operation
Stall Prevention during Operation
Output
current
n57
Time
Output
frequency
The output frequency is
controlled so that the
Inverter will not stall.
Time
Frequency Detection Level (n58)
Set the frequency to be detected.
Note:
When frequency detection 1 and 2 are to be output, n40
(multi-function output) must be set.
Value
Name
Setting
range
0.0 to 400
Unit of
setting
0.1 Hz
Default
settings
0.0
n58
Frequency Detection
Level
Overtorque Detection Function Selection
(n59 to n61)
Set n59 to enable or disable overtorque detection and select the
processing to be performed after overtorque detection.
Value
Description
0
Inverter does not monitor overtorque.
1
Inverter monitors overtorque only when speed is matched.
It continues operation (issues warning) even after overtorque is
detected.
Inverter monitors overtorque only when speed is matched.
It discontinues operation (through protective function) when
overtorque is detected.
Inverter always monitors overtorque during operation.
It continues operation (issues warning) even after overtorque is
detected.
Inverter always monitors overtorque during operation.
It discontinues operation (through protective function) when
overtorque is detected.
2
3
4
Set the overtorque detection level in n60 and the overtorque
detection time in n61.
Value
Name
Setting
range
Unit of
setting
Default
set-
tings
160
n60
Overtorque Detection
Level
Overtorque Detection
Time
30 to 200
1%
n61
0.1 to 10.0
0.1 s
0.1
Note:
1. In n60, set the overtorque detection level in percentage
based on the rated output current of the Inverter as 100%.
2. In n61, set the overtorque detection time in 0.1-s increments.
Overtorque Detection
Output
current
n60
Time
Overtorque
detection
(NO)
n61
Time
See note.
Note:
Overtorque detection will be canceled if the out-
put current decreases from the detection level by
approximately 5% of the Inverter rated current.