IACDRIVE I5300 Series, User Manual, Page: 191 / 272

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These two parameters are respectively used to set the detection value of output frequency
and hysteresis value upon cancellation of the output. The value of P8-20 is a percentage of
the hysteresis frequency to the frequency detection value (P8-19).
The FDT function is shown in the following figure.
Figure 6-17 FDT level
Time (t)
Output frequency (Hz)
FDT level FDT hysteresis
= P 8-19 x P 8-20
Time (t)
Frequency reached
detection signal
(DO, relay)
ON
F unction Code Parameter Name Setting Range Default
P 8-21
Detection range of frequency
reached
0.00–100% (maximum
frequency)
0.0%
If the AC drive running frequency is within the certain range of the set frequency, the
corresponding DO terminal becomes ON.
This parameter is used to set the range within which the output frequency is detected
to reach the set frequency. The value of this parameter is a percentage relative to the
maximum frequency. The detection range of frequency reached is shown in the following
figure.
Figure 6-18 Detection range of frequency reached
Time (t)
Output frequency (Hz)
Set frequency Detection
range
Frequency reached
detection signal
ON ON
I5300 User Manual Description of Function Codes