HNC Electric HV480 Series, Руководство пользователя

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90
F6 - 02 rotational speed tracking speed 0
～
100 [20]
When speed tracking is restarted, select the speed of speed tracking.
The larger the parameter, the faster the tracking speed However, setting too large may lead to unreliable
tracking results.
F6 - 03 startup frequency
0.00Hz
～
10.00Hz
【
0.00Hz
】
F6 - 04 startup frequency hold time 0.0s
～
100s
【
0.0s
】
In order to ensure the motor torque during starting, please set the appropriate starting frequency. In order to fully
establish magnetic flux when starting the motor, it is necessary to keep the starting frequency for a certain period of
time.
The relationship between starting frequency and starting time is shown in figure 5 - 18.
Figure 5 - 18 startup frequency and startup time
Notes:
The starting frequency F6 - 03 is not limited by the lower limit frequency.
When the set target frequency is less than the starting frequency, and the frequency inverter will not start and
will be in standby mode.
During forward and reverse switching, the start frequency holding time does not work.
The startup frequency holding time is not included in the acceleration time, but is included in the operation time
of the simple PLC.
F6-05 start DC brake current / pre-excitation current 0%
～
100%
【
0%
】
F6-06 start DC brake time / pre - excitation time 0.0s
～
100.0s
【
0.0s
】
Start the direct current brake, which is usually used to stop the running motor before starting. The pre-excitation
is used to set up a magnetic field before starting the asynchronous motor to improve the response speed.
If it is valid when the startup mode is direct startup at this time, the frequency inverter performs direct current
braking according to the set starting direct current braking current, and starts to run after the starting direct current
braking time. If the DC braking time is set to 0, it will be started directly without direct current braking.
If the starting mode is asynchronous machine pre-excitation starting, the frequency inverter first establishes a
magnetic field in advance according to the set pre-excitation current, and then starts to run after the set
pre-excitation time. If the pre-excitation time is set to 0, it will be started directly without going through the
pre-excitation process.
Time
Frequency