Pentax DSI-200 Series User Manual page 71

Torque adjustment
proportional gain
P2-15
Set range
Torque adjustment
integral gain
P2-16
Set range
Vector control current loop PI adjustment parameters, the parameters in the asynchronous
machine after the self-learning will automatically get, generally do not need to modify.
Need to be reminded that the current loop integral regulator, not the use of integral time
as a dimension, but directly set the integral gain. The current loop PI gain setting is too
large, which may cause the entire control loop to oscillate. Therefore, when the current
oscillation or torque fluctuation is large, the PI proportional gain or integral gain can be
reduced manually.
Power generation limit is
P2-22
Power generation limit
P2-23
For the cam load, rapid acceleration and deceleration, load sudden drop and other
applications, and not using the braking resistor, you can enable the power generation limit
(set P2-22 = 1), effectively reduce the motor brake process bus voltage Red, to avoid the
occurrence of over-voltage failure. The upper limit of the power generation P2-23 is the
percentage of the rated power of the motor and still occurs when the power limit is enabled.
When over voltage, adjust P2-23 downwards.
P3 group V/F Control parameters
This function code is valid only for V / F control and is not valid for vector control.
V / F control suitable for fans, pumps and other general load, or a frequency converter
with multiple motors, or inverter power and motor power difference between the larger
applications.
V/F Curve setting
P3-00
Set range

0: Straight line V / F. Suitable for ordinary constant torque load.

1: multi point V / F. Suitable for dehydration machines, centrifuges and other
special load. At this time by setting P3-03 ~ P3-08 parameters, you can get any
VF relationship curve.
Factory default
Factory default
enabled
Set range
Set range
Factory default
0 ： line V/F
3：1.2 times V/F
4：1.4 times V/F
8：1.8 times V/F
10：VF Completely separate mode
11：VF Semi-separation mode
0～20000
0～20000
Set range
0：no effect
Factory default
0.0~200.0%
1 ： Multipoint V/F
6：1.6 times V/F
9：Reserved
- 71 -
2000
1300
0
1：effect
Motor ensure
0
2 ： square V/F