F6-02
Rotation speed tracking
fastness and slowness
Factory default
value
20
Setup range 1~ 100
When it is in the mode of rotation speed tracking restart, select the fastness and slowness of
the rotation speed tracking. The higher this parameter value is, the faster the tracking speed is.
But too high value may result in unreliable tracking.
F6-03
Startup frequency
Factory default
value
0.00Hz
Setup range 0.00Hz~ 10.00Hz
F6-04
Start frequency
retention time
Factory default
value
0.0s
Setup range 0.0s~ 36.0s
To ensure the torque at the start of inverter, it needs to set a proper start frequency. In addition,
to set up ux at the time of motor start, it needs to start acceleration after the start frequency is
kept for a certain period of time. The start frequency value F6-03 is not limited by the frequency
lower limit.
When the frequency reference value (frequency source) is lower than the start frequency, the
inverter cannot be started and is in the standby status.
When the forward rotation and reverse rotation is being switched each other, the start frequency
retention time is inactive. The retention time is not included in the acceleration time but in the
running time of simple PLC.
Example 1:
F0-03=0 Frequency source is digital reference
F0-08=2.00Hz Digital setup frequency is 2.00Hz.
F6-03=5.00Hz Start frequency is 5.00Hz.
F6-04=2.0s Start frequency retention time is 2.0s.
At this time, the inverter is in the standby status, and the output frequency of the inverter is
0Hz.
Example 2:
F0-03=0 Frequency source is digital setup.
F0-08=10.00Hz Digital setup freqeuncy is10.00Hz.
F6-03=5.00Hz Start frequency is 5.00Hz.
F6-04=2.0s Start frequency retention time is 2.0s.
At this time, the inverter accelerates to 5Hz and further to reference freuqency of 10Hz in 2s.
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