CHINT NVF5-3.7/TS4-B - Regenerative Braking; Frequency Detection Output（Fdt

NVF5 Series User Manual Chapter 6 Parameter Function Description
Freq
. Hz
Time t
Forward/Reverse
switch deadband time
Figure 6-15-1 Forward and Reverse Switch
6.16 Regenerative Braking
When the motor decelerates, if the load is too large and the decal. time is too short,
the DC Bus voltage of the inverter may rise to the overvoltage level. At this time, the Brake
Resistor should be connected,and the Regen. Brake should be switched on,then the
Overvoltage Fault can be avoided .
Code Name Default Setting Range Description
F8.16
Brke Unit Action
Voltage
720V（440V
Series）
360V （230
VSeries）
440V Series ：（ 650 ～
750）V
230V Series ：（ 320 ～
380）V
-
F8.17
Regen. Brake.
Selection
0
0 ～ 1
0：Disable
1：Enable
F8.18
Regen. Brake
Using Rate
80.0%
（ 0.0 ～ 100.0）%
-
6.17 Frequency Detection Output（FDT）
It is used to set the detection value of the output frequency and the lag value of the
digital output action. The lag value is only effective in the deceleration process, and the
detection in the acceleration process is useless.
Code Name Default Setting Range Description
F6.14
FDT1
Level
50.00Hz
0.00 Hz ～ F0.07
-
F6.15 FDT1 Lag 5.0%
（ 0.0 ～ 100.0）%
100% Corresponding Max.
Oupput Frequency
F6.16
FDT2
Level
25.00Hz
0.00 Hz ～ F0.07
-
F6.17 FDT2 Lag 5.0%
（ 0.0 ～ 100.0）%
100% Corresponding Max.
Output Frequency
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