Chapter 5 Function parameter
104
Ch
ap
ter 5
When the torque setting to a positive, frequency converter operate forwardly, when the torque
setting to a negative, inverter operate reversely.
When the torque setting adopts mode 1 to 8, the 100% of communications, analog input and
pulse input corresponds to FA.02.
FA.03
Torque control acceleration time
0.00s~650.00s
0.00s
☆
FA.04
Torque control deceleration time
0.00s~650.00s
0.00s
☆
Under the torque control mode, the difference between the motor output torque and load
torque determines the change rate in speed of the motor and load, therefore, the motor speed may
rapidly change, resulting in the problems such as noise or excessive mechanical stress. By setting
the torque control ac/deceleration time, you can make a smooth change of motor speed.
But the occasions that needs the rapid response of torque, the torque control
ac/deceleration time must be set to 0.00s. For example: when two hardwired motors drag the
same one load, in order to ensure that the load is evenly distributed, you must set one inverter as
the master unit that works under the speed control mode, the other inverter as the auxiliary unit
that works under the torque control mode, the Actual output torque of the master unit is used as the
torque command of the auxiliary, the torque of the auxiliary needs quickly follow the master unit,
so the torque control ac/deceleration time of the auxiliary unit shall be set to 0.00s.
FA.05
Torque control forward
maximum frequency
0.00Hz~maximum frequency (F0.19)
50.00
Hz
☆
FA.06
Torque control backward
maximum frequency
0.00Hz~ maximum frequency (F0.19)
50.00
Hz
☆
Used to set the maximum operating frequency of inverter forward or reverse running under
the torque control mode
Under the torque control mode, if the load torque is less than the motor output torque, the
motor speed will continue to rise, in order to prevent "Runaway" and other accidents of
mechanical systems, it is necessary to limit the maximum speed of motor under the torque control
mode.
FA.07
Torque filter time
0.00s~10.00s
0.00s
☆
5-2-13.
Control optimization parameters: Fb.00-Fb.09
Code
Parameter name
Setting range
Factory
setting
Change
limits
Fb.00
Fast current limiting
manner
Disable
0
1
☆
enable
1
Enable Quick Current Limiting function, which can minimize the overcurrent fault of
inverter , and ensure the uninterrupted operation of inverter. If the drive is in the state of fast
current limiting for a long period of time , the inverter may be damaged by overheating and others,
this case is not allowed, so the inverter will alarm fault with fault ID Err.40, it indicates that the
inverter exists overload and needs to be shut down.
Fb.01 Undervoltage point setting 50.0%~140.0%
100.0%
☆
Used to set the voltage value of inverter undervoltage fault with fault ID Err.09 , the different
voltage levels of inverter 100.0% corresponds to the different voltage points are as follows:
Single-phase 220V or three-phase 220V: 200V
Three-phase 380V: 350V
Three-phase 480V: 450V
Three-phase 690V: 650V
Fb.02 Overvoltage point setting 200.0V~2500.0V
-
☆
The setting over voltage point of the software has no influence on the setting over voltage
point of the hardware. The value of the voltage set to the frequency inverter, different voltage level
model’s factory defaults are as following:
Voltage level
over voltage point factory default
Single phase 220V
400.0V
Three phase 220V
400.0V
Three phase 380V
810.0V
