083
Figure F1-1 Start Frequency
Notice:
◇ Start frequency is not effective by lower limit
frequency. Jog frequency is not effective by lower
limit frequency but is restricted by start frequency.
◇ When F0.18=1 (high frequency mode), start
frequency has a upper limit of 500.0Hz.
0: start at start frequency
Start with start frequency (F1.01) and its
corresponding retention time (F1.02) that
has been set.
1: DC braking and start at start frequency
DC brake (F1.03, F1.04) first, then start in
method 0.
2: start with speed tracking
When power on after power off, if it meets
the starting condition, after a period of
time defied by FC.15, the VFD will start
automatically in speed tracking method.
F1 Basic Running Parameter
F1.00
Start mode
0～2 0
Start frequency is the initial frequency when
the VFD starts, as fs showed in the following
figure. For some system with relatively
big starting torque, a reasonably set start
frequency can solve effectively the hard
starting problem. The retention time of start
frequency is the time VFD stays in the start
frequency value during starting stage, as t1
showed in the following gure.
F1.01
Start frequency
0.00 ～ 50.00Hz 1.00
F1.02
Start frequency hold time
0.0 ～ 10.0s 0.0
GT
U
4.2 Detailed Function Description
The setting value of start DC brake current
is the percentage relative to rated output
current. When start DC brake time is 0.0s,
there would be no DC brake process.
F1.03
DC brake current at startup
0.0 ～ 150.0％ *rated current
of motor
0.0%
F1.04
DC brake time at startup
0.0 ～ 100.0s 0.0
Figure F1-2 start DC brake
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3: Write protection is not valid for this
parameter and cannot be initialized
F1.05
Acc./Dec. mode
0～1 0
0: linear Acc./Dec. mode
The output frequency increase or decrease
in a constant slope, as showed in the
following gure.
1: S curve Acc./Dec. mode
The output frequency increase or decrease
in S type curve along with time. During
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