Veichi JT550 Series Manual page 93

JT550 Series Inverter Manual
F4.19 Frequency detection value (FDT1)
Frequency detection
F4.20
hysteresis (FDT hysteresis 1)
If the running frequency is higher than the value of F4.19, the corresponding Y terminal becomes ON.
If the running frequency is lower than value of F4.19, the DO terminal goes OFF.
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 F4.20 is a percentage of the hysteresis
frequency to the frequency detection value (F4.19).The FDT function is shown in the following Figure .
F4.21 Detection range of frequency reached
If the inverter 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 .
F4.22
acceleration/deceleration
0: Disabled
1: Enabled
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.
Jump frequency during
Range:0.00Hz~max.freq
Range:0.0%~100.0%
Range:0.0%~100.0%
Range:0~1
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Chapter 7 Maintenance and Troubleshooting
Default:50.00Hz
Default:5.0%
Default:0.0%
Default:0