-52-
aware that this may lead to system oscillation.
The recommended adjustment method is as follows:
If the factory setting cannot meet the requirements, make proper adjustment. Increase the
proportional gain first to ensure that the system does not oscillate, and then reduce the integral time to
ensure that the system has quick response and small overshoot.
Improper PI parameter setting may cause too large speed overshoot, and overvoltage fault may even
occur when the overshoot drops.
P3.06
Vector control slip gain
50%~200%
150%
☆
For SVC, it is used to adjust speed stability accuracy of the motor. When the motor with load runs at
a very low speed, increase the value of this parameter; when the motor with load runs at a very large
speed, decrease the value of this parameter.
For FVC, it is used to adjust the output current of the Inverter with same load.
P3.07
Time constant of speed loop
filter
0.000s~0.100s
0.000s
☆
In the vector control mode, the output of the speed loop regulator is torque current reference. This
parameter is used to filter the torque references. It need not be adjusted generally and can be increased
in the case of large speed fluctuation. In the case of motor oscillation, decrease the value of this
parameter properly.
If the value of this parameter is small, the output torque of the Inverter may fluctuate greatly, but the
response is quick.
P3.08
Vector control over-excitation
gain
0~200
64
☆
During deceleration of the Inverter, over-excitation control can restrain rise of the bus voltage to
avoid the overvoltage fault. The larger the over-excitation gain is, the better the restraining effect is.
Increase the over-excitation gain if the Inverter is liable to overvoltage error during deceleration. Too
large over-excitation gain, however, may lead to an increase in output current. Therefore, set this
parameter to a proper value in actual applications.
Set the over-excitation gain to 0 in applications of small inertia (the bus voltage will not rise during
deceleration) or where there is a braking resistor.
P3.09
Torque upper limit source in
speed control mode
P3.10
0
0
☆
AI1
1
AI2
2
Summary of Contents for DLB1-0D40S2G
Page 11: ...11 Graph 1 722 30KW product outline dimensions Graph 1 837 55KW product outline dimensions...
Page 12: ...12 Graph 1 875 110KW product outline dimensions Graph 1 9 132 160KW product outline dimensions...
Page 14: ...14 2 Wirings 2 1 Standard wiring diagrams Graph 2 8 0 4 18 5KW inverter wiring diagram...
Page 15: ...15 Graph 2 922 400KW inverter wiring diagram...
Page 159: ...159...
