abc 2000 Series User Manual page 49

The speed dynamic response characteristics in vector control can
adjusted by setting the proportional gain and integral time of the
be
speed rogula1nr.
To achieve a faster system response, increase the proportional gain
and reduce the integral time. Be aware that this may lead to system
oscillation.
The recommended adjustment method is as follows:
the factory setting cannot meet the requirements, make proper
I f
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
Note:lmproper Pl parameter setting may cause too large speed
overshoot, and overvoltage fault may even occur when the
overshoot drops.
pa 06
Vector control slip gain Default 100%
·
Setting Range
For ii is used 1n adjust speed stability accuracy
SFVC,
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
Time constant of
speed loop filter
P3.07
Sat.ting Range
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
drive may fluctuate greatly, but the response is quick.
Vector control
P3.08
excitation gain
Setting Range
During deceleration of the
restrain rise
of
larger the over-excitation gain is, the better the restraining effect is.
Increase the over-excitation gain if the
overvoltage error during deceleration. Too large over-excitation
gain, however, may lead to an increase in output current Therefore,
this parameter is small, the output torque
overm
AC
the bus voltage to avoid the overvoltage fault. The
50%-200%
this parameter.
of
Default
o.ooos-0.1 oos
Default
drive, over-excitation control can
Iha mo1nr.
of
of
0-200
drive is liable to
AC
the
AC