NVF5 Series User Manual Chapter 6 Parameter Function Description
The integral regulator of the current loop does not use integral time as dimension, but
directly sets integral gain.
If the PI gain of the current loop is too large, the system may oscillate. Therefore,
when the current oscillates or the torque fluctuates greatly, the Proportional gain or the
Integral gain can be reduced manually.
6.7 OverCurrent Stall Protection
If the current exceeds 150% action current of overcurrent stall (1.5 times of motor
rated current) during the running process, the overcurrent stall will take effect and the
output frequency will begin to decrease, until the current returns below the overcurrent
stall point, the frequency will start to accelerate up to the target frequency, and the actual
acceleration time will be increased automatically.
The greater the overcurrent stall gain,
the stronger the overcurrent stall, the faster the output frequency drops.
Figure 6-7-1 Overcurrent Stall Action Digram
Code
Name
Default
Setting Range
Description
FE.07
Overcurrent Stall
Gain
20
0
～
100
0
：
Prohibit
FE.08
Overcurrent Stall
Protection Current
150%
（
100
～
200
）
%
-
6.8 OverVoltage Stall Depress
If the DC Bus voltage exceeds the over-voltage stall protection voltage FE.06, the
over-voltage stall will take effect in the operation of the inverter, adjusting the output
frequency, the actual deceleration time will be automatically increased to avoid trip.
F3.13
Torque Regulation Kp
2000
0
～
60000
-
F3.14
Torque Regulation Ki
1300
0
～
60000
-
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