Vicruns 2S-0.4G-B, User Manual

Page: 195 / 300

Chapter 6 Description of Function Codes
-194-
For loads with small inertia, the overvoltage stall gain should be small, otherwise the dynamic
response of the system will be slowed down. For loads with large inertia, this value should be
large, otherwise the suppression effect will not be good, and an overvoltage fault may occur.
When the overvoltage stall gain is set to 0, the overvoltage stall function is canceled.
Function
code
Name
Description
(setting range)
Factory
Default
Change
P9-05
VF Overcurrent Stall Protection
Gain
0
～
100 20
☆
P9-06
VF Overcurrent Stall Protection
Current
50%
～
200%
150%
★
P9-07
VF field weakening area current
stall protection factor
50% ～ 200% 100%
★
Over-current stall: when the output current of the inverter reaches the set over-current stall
protection current (P9-06), the inverter will stop accelerating when it is accelerating; when it
is running at a constant speed, the output frequency will be reduced; Slow down the falling
speed until the current is less than the overcurrent stall protection current (P9-06), the runn-
ing frequency will return to normal. See Figure 5-21 for details.
Overcurrent Stall Protection Current: Select the current protection point of the overcurrent st-
all function. When this parameter value is exceeded, the inverter starts to execute the overc-
urrent stall protection function. The value is a percentage relative to the rated current of the
drive.
Overcurrent stall gain: used to adjust the inverter's ability to suppress overcurrent during acc-
eleration and deceleration. The larger the value, the stronger the overcurrent suppression
capability. Under the premise of no overcurrent, the smaller the gain setting, the better.
For loads with small inertia, the over-current stall gain should be small, otherwise the dynam-
ic response of the system will be slowed down. For loads with large inertia, this value should
be large, otherwise the suppression effect will be poor and overcurrent faults may occur. In
the case of very small inertia, it is recommended to set the overcurrent suppression gain to
less than 20.
When the overcurrent stall gain is set to 0, the overcurrent stall function is canceled.
C
h
a
p
te
r
6