CHINT NVF2G-S Series - Start and Stop Method Setting

8.2.1 0 frequency command limit (frequency setting )
Operating frequency upper limit: limit the maximum output frequency, and the motor is not allowed to
run above a certain frequency;
Lower limit of operating frequency: limit the minimum output frequency, and do not allow the motor to
run below a certain frequency;
Maximum output frequency: limit the maximum output frequency.
function code
name
default value
Predetermined area
Parameter Description
F0.07
output frequency
50.00Hz
F0.08~600.00Hz
F0.08
frequency cap
50.00Hz
F0.09~F0.07
F0.09
Operating frequency
lower limit
0.00Hz
0.00Hz~F0.08
8.3 Start and stop method setting
8.3.1 Start method
There are three starting methods for the inverter, which are: start from the starting frequency , brake first
and then start from the starting frequency, and start after speed tracking . Set parameter F1.00 to select the
starting method of the inverter .
● Start from the starting frequency
Set parameter F1.00=0, the inverter will start directly, which is suitable for most loads. Add F1.01 before
starting to start the frequency of direct start : when using elevators , hoisting and other lifting loads.
function code
name
default value
Predetermined area
Parameter Description
F1.00
Starting mode
0 0~2
0 Start from the starting
frequency
1 Brake first and then start
from the starting frequency
2 speed tracking (including
direction judgment) restart
F1.01
Starting frequency
0.00Hz
(0.00 ~ 10.00 ) Hz
F1.02
Starting frequency hold time
0.0s
(0.0 ~100.0 )s
F1.03
DC braking time before starting
0.0 %
(0.0 ~ 100.0 ) %
1 00 % (inverter rated current)
F1.04
DC braking time before starting
0.0s
(0.0 ~ 100.0 ) s
● Brake first and then start from the starting frequency
Set F1.00=1, add F1.01~F1.04 before starting. The DC braking function is suitable for the occasion where
the motor rotates when starting.
Figure 8 -3-1 Timing diagram of direct start
Set the
frequency
Direct start
frequency
time t
046
NVF2G-S Series Inverter User's Guide
Frequency Hz
Start frequency hold time