NVF5 Series User Manual Chapter 6 Parameter Function Description
Set parameter F1.00=0，directly start inverter，suitable for most kinds of load.Set
parameter F1.01-direct starting frequency：suitable for some constant torque load.
Freq. Hz
Setting
Freq.
Start Freq.
time
Start Freq. Holding time
Figure 6-3-1 Directly Start Time Sequence Chart
First Braking then Starting from Starting Frequency
Set parameter F1.00=1，Set parameter F1.01 ～ F1.04DC brake function before
start,suitable for motor rotate when start .
Freq.
Hz
Time
t
Output vol.
(RMS value)
Time
t
DC
injection
brake
level
RUN
command
DC injection
brake time
Figure 6-3-2 First Braking then Starting Time Sequence Chart
Speed Tracking(including direction discrimination) and Restart
Set parameter F1.00=2，the start mode of the inverter is speed tracking and restart
（The inverter first judge the speed and direction of the motor, and then starts with the
tracking motor frequency）suitable for large inertia load. If the motor is still running by large
inertia load when the inverter start, the over-current can be avoided by adopting speed
tracking and restarting.
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