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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