Inovance MD380 Series

Operation, Display and Application Examples MD380 User Manual
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4.7.2 Startup Mode
The MD380 supports three startup modes, namely, direct startup, catching a spinning motor,
and pre-excited startup (asynchronous motor), set in F6-00.
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It is applicable to small-inertia load. The frequency curve in this mode is shown in the
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DC injection braking before startup is applicable to drive of load such as elevator and
crane. Startup frequency is applicable to drive with burst start under start torque, such
as cement mixer.
Figure 4-9 Frequency curve of direct startup
F6-07
(Acceleration/
Deceleration mode)
F0-12
(Frequency
upper limit)
F0-17
(Acceleration time)
Frequency (f)
Time (t)
Running
command
F6-00 0 (Direct startup)
F6-03
(Startup frequency)
F6-06
(DC injection 1
active time)
F6-04
(Startup frequency
active time)
0
1
2
F0-12
(Frequency
upper limit)
F0-17
(Acceleration time)
Frequency (f)
Time (t)
Running
command
Default:
F6-06 0.0s
F6-03 0.00 Hz
F6-04 0.0s
F6-07 0
F6-00 0 (Direct startup)
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It is applicable to large-inertia mechanical load. The frequency curve in this mode is
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drive starts up, this mode is used to prevent overcurrent at startup.
Figure 4-10 Frequency curve of catching a spinning motor
F0-12
(Frequency
upper limit)
F0-17
(Acceleration time)
Frequency (f)
Time (t)
Running
command
Initial motor speed
F6-00 1 (Catching
a spinning motor)
Detection of catching a
spinning motor automatically
F0-12
(Frequency
upper limit)
F0-17
(Acceleration time)
Frequency (f)
Time (t)
Running
command
Initial motor
speed 0
F6-00 1 (Catching
a spinning motor)
Detection of
catching a spinning
motor automatically
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