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F2-07
Filter time of speed loop of vector control
V/F control and AVR selection
Default 0.002s
Setting range
0.00s ~ 0.100s
Under the vector control mode, the speed regulator outputs the torque current command of the
inverter. The filter time of speed loop refers to the filter time for the torque current command.
Generally, this parameter does not need adjustment. Appropriately increase the filter time when the
speed fluctuates dramatically and reduce it if the motor vibrates.
Under the VF control mode, this parameter is used for the function selection of AVR.
Under 0.000: VF control, AVR is invalid.
Under 0.001: VF control, AVR is always valid.
Under 0.002: VF control, AVR is only invalid at deceleration time (If the function code value is
greater than 0.002, it will be treated as 0.002.)
The selection of “InValid only at deceleration time” can greatly reduce the possibility of the
occurrence of overvoltage when the system is under the VF control and when a quick stop is
needed but there is no braking resistor. Select “AVR is always valid” when there is braking resistor
but there is no strict requirement for the deceleration time.
F2-08
Upper limit for torque
Default 150%
Setting range
5.0% ~ 200%
When the system is under the vector control, the upper limit for torque refers to the maximum output
torque. When the limit is set at 100%, the maximum torque will be the rated torque of the motor.
F2-09
Deceleration overexcitation gain of motor
Default 60
Setting range
0 to 200
When a quick stop is needed, to prevent the overvoltage fault caused by the energy generated
during the motor acceleration, we shall increase the value of the parameter so that the energy will
be consumed in the motor windings. In this way, a quick stop can be achieved.
F2-10
Vibration suppressing gain
Default 0
Setting range
0 ~ 100
This parameter is useful only in VF mode.
When the motor has no vibration, please select the gain as “0”. This gain shall be appropriately
increased only when the motor cannot run normally due to obvious vibration. The higher the gain is,
the more effective the vibration is suppressed. To avoid the impact on the VF running, this gain shall