Description of Function Codes
MD380 User Manual
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It is used to set whether the jump frequencies are valid during acceleration/deceleration.
When the jump frequencies are valid during acceleration/deceleration, and the running
frequency is within the frequency jump range, the actual running frequency will jump over
the set frequency jump amplitude (rise directly from the lowest jump frequency to the highest
jump frequency). The following gure shows the diagram when the jump frequencies are
valid during acceleration/deceleration.
Figure 6-19 Diagram when the jump frequencies are valid during acceleration/deceleration
Frequency jump amplitude
Frequency jump amplitude
Output
frequency (Hz)
Jump
frequency 2
Jump
frequency 1
Time (t)
Frequency jump amplitude
Frequency jump amplitude
Frequency jump amplitude
Frequency jump amplitude
Function Code Parameter Name Setting Range Default
F8-25
Frequency switchover point between
acceleration time 1 and acceleration time 2
0.00 Hz to maximum
frequency
0.00 Hz
F8-26
Frequency switchover point between
deceleration time 1 and deceleration time 2
0.00 to maximum
frequency
0.00 Hz
This function is valid when motor 1 is selected and acceleration/deceleration time switchover
is not performed by means of DI terminal. It is used to select different groups of acceleration/
deceleration time based on the running frequency range rather than DI terminal during the
running process of the AC drive.
Figure 6-20 Acceleration/deceleration time switchover
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