Chapter 5 Function parameter
76
Code
Parameter name
Setting range
Factory
default
Change
Multi-speed setting (same as 1)
5
Remote communications setting
(same as 1)
6
Only when F0.00 = 3, both torque control and FA.00 function code are valid.
Under torque control mode, the inverter outputs torque according to the set output
torque command, the output frequency is limited by upper limit frequency, when the
load speed is greater than the set upper limit frequency, the inverter output frequency
will be limited, at the time the output torque is different from the set torque.
When the torque command is set by the keyboard (FA.00 = 0), the torque command
can be obtained from setting the function code FA.01. When the torque is set to
negative, the motor will reverse. Analog, multi-speed and communication settings, the
set 100.0% corresponds to two times of rated inverter current and the set -100.0%
corresponds to negative 2 times of rated inverter current.
The multi-function input terminals are used to switch between torque control and speed
control.
When the set torque of inverter is greater than the load torque, the inverter output
frequency will rise, when the inverter output frequency reaches the upper limit of the
frequency, the inverter will run at the upper limit frequency.
When the set torque of inverter is less than the load torque, the inverter output
frequency will fall, when the inverter output frequency reaches the lower limit of the
frequency, the inverter will run at the lower limit frequency.
Note: In the state of stop, the inverter automatically switches from torque control to
speed control.
FA.01
Keyboard set
torque
-200.0% to 200.0% (rated inverter
current)
50.0%
☆
5-2-13.Fb Group - Control optimization group
Code
Parameter name
Setting range
Factory default Change
Fb.00 Software overcurrent point
4 to 2000A
Depends on models
★
Fb.01 Software undervoltage point
0 to 500V
Depends on models
★
Fb.02 Software overvoltage point
300 to 800V
Depends on models
★
Fb.03
Low-frequency threshold point
of oscillation suppression
0 to 500
5
☆
Fb.04
High-frequency threshold point
of oscillation suppression
0 to 500
100
☆
But most of the motors that run at certain frequency range occur current shocks,
sometime the motor can not run steadily, even it can lead to the inverter overcurrent.
When Fb.07 = 0, the oscillation suppression is enabled; if Fb.03, Fb.04 is set to very
small, both the effect of oscillation suppression and the increase of current are more
