Inovance MD380 Series, User Manual

Page: 180 / 304

Description of Function Codes
MD380 User Manual
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Function Code Parameter Name Setting Range Default
F6-02 Speed of catching a spinning motor 1–100 20
This parameter is used to set the speed of catching a spinning motor in the mode of
catching a spinng motor. The larger the value is, the faster the catching is. However, too
large value may cause unreliable catching.
Function Code Parameter Name Setting Range Default
F6-03 Startup frequency 0.00–10.00 Hz 0.00 Hz
F6-04 Startup frequency active time 0.0–100.0s 0.0s
To ensure the motor torque at AC drive startup, set a proper startup frequency. In addition,
to build excitation when the motor starts up, the startup frequency must be held for a certain
period.
The startup frequency (F6-03) is not restricted by the frequency lower limit. If the set target
frequency is lower than the startup frequency, the AC drive will not start and stays in the
standby state.
During switchover between forward rotation and reverse rotation, the startup frequency
holding time is disabled. The holding time is not included in the acceleration time but in the
running time of simple PLC.
Example 1:
)
The frequency source is digital setting.
) +]
The digital setting frequency is 2.00 Hz.
) +]
The startup frequency is 5.00 Hz.
) V
The startup frequency active time is 2.0s.
In this example, the AC drive stays in the standby state and the output frequency is 0.00 Hz.
Example 2:
)
The frequency source is digital setting.
) +]
The digital setting frequency is 10.00 Hz.
) +]
The startup frequency is 5.00 Hz.
) V
The startup frequency active time is 2.0s.
In this example, the AC drive accelerates to 5.00 Hz, and then accelerates to the set
frequency 10.00 Hz after 2s.
Function Code Parameter Name Setting Range Default
F6-05 DC injection braking 1 level/Pre-excitation level 0%–100% 0%
F6-06
DC injection braking 1 active time /Pre-
excitation active time
0.0–100.0s 0.0s
DC injection braking is generally used during restart of the AC drive after the rotating motor
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motor before startup to improve the responsiveness.
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