Chapter 5 Function code VFD500 high performance vector control frequency inverter user manual
02 Group Start and stop Control
0：Direct start
Inverter will start from P02.01,After P02.02,It
will go to setting frequency as per S curve
1：Speed tracking/Searching
Inverter will do search for motor speed and
recognize and accelerate and decelerate to
setting frequency.See Parameter P02.16-
P02.19
The direction and speed will be tracked
automatically for the smoothing starting
of rotating motors. It suits the
application with reverse rotation when
big load starting.
Startup frequency
holding time
0.000s～10.000s
Set a proper starting frequency to
increase the torque of the inverter
during starting. During the retention time
of the starting frequency, the output
frequency of the inverter is the starting
frequency. And then, the inverter will run
from the starting frequency to the set
frequency. If the set frequency
is lower than the starting frequency, the
inverter will stop running and keep in the
stand-by state. The starting frequency is
not limited in the lower limit frequency.
Quick-response
excitation
0：Disable
1：Enable
Set 1= enable it will automatically calculate
pre-exciation current P02.04 and pre-excitaton
time ,after finishing calculation,this parameter
will reset to 0
0%～200% motor rated current
0.00s～10.00s
Pre-excitation enable Asynchronous motor for
magnetic field for higher starting torque
DC brake current at
start-up
0～100% motor rated current
DC brake time at start-up
0.000s～30.000s
No start DC brake when set to 0s
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