MD280 User Manual Operation and Display
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Figure 4-8 Frequency curve of direct start
F4-07
Acceleration/
Deceleration mode
F0-06
Frequency
upper limit
F0-09
Acceleration
time
Frequency f
Time t
Running
command
F4-00 0 Direct start
F4-03
Startup frequency
F4-06
Startup DC
braking time
F4-04
Startup frequency
holding time
F0-06
Frequency
upper limit
F0-09
Acceleration
time
Frequency f
Time t
Running
command
Default:
F4-06 0.0s
F4-03 0.00 Hz
F4-04 0.0s
F4-07 0
F4-00 0 Direct start
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It is applicable to large-inertia load. The frequency curve in this mode is shown in the
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this mode is used to prevent start overcurrent.
Figure 4-9 Frequency curve of rotational speed tracking restart
F0-06
Frequency
upper limit
F0-09
Acceleration
time
Frequency f
Time t
Running
command
Initial rotational speed
of the load motor
F4-00 1 Rotational
speed tracking restart
Automatic rotational
speed tracking detection
F0-06
Frequency
upper limit
F0-09
Acceleration
time
Frequency f
Time t
Running
command
Initial rotational speed of
the load motor 0
F4-00 1 Rotational
speed tracking restart
Automatic
rotational speed
tracking detection
4.4.3 Stop Mode
The AC drive supports two stop modes, decelerate to stop and coast to stop, set in F4-10.
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Running
frequency
F0-10
Deceleration time
Frequency f
Time t
Stop command
No
output
F4-11 Initial frequency of
stop DC braking
F4-12 Waiting
time of stop DC
braking
F4-14 Stop DC
braking time
F4-13 Stop DC
braking current,
F4-10 0: Decelerate to stop
Default values:
F4-10 0
F4-11 0.00 Hz
F4-12 0.0s;
F4-13 0%;
F4-14 0.0s
Running
frequency
Rotational speed
under load , coast
to stop by inertia
Frequency f
Time t
Stop command
F4-10 1: Coast to stop
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