Vector Control Current Loop And Rotation Differential Compensation; Start And Stop - Dema Electric D6 Series User Manual

4 Description of function parameters and setting
Automatic torque promotion function shall real-time change value of output voltage according to load current
so as to automatically adopt various load conditions and output applicable voltage, realize great torque output
under heavy load and small output current on no-load.
Automatic torque promotion will automatically compensate voltage drop of stator resistor of electric motor,
output voltage is increased. 08_18 (automatic torque compensation degree) can automatically set size of
automatic compensation. Automatic torque promotion use a part of parameters of electric motor (rated
power, rated voltage, rated current and stator resistance) , it is recommended to carry out static self-setting of
the electric motor before application, and 08_14 (maximum output voltage) setting shall be 5% lower than
rated voltage of the electric motor (for example change 380V to 360V) .

4.6 Vector control current loop and rotation differential compensation

Relevant function parameters:
03_42
Proportionality coefficient of current loop
03_43
Integration coefficient of current loop
03_44
Rotation differential compensation gain of
vector control
03_42 and 03_43 are PI regulation parameters of vector control current loop respectively, increasing 03_42
and 03_43 can improve response speed of torque, but stability of the system is worsened, decreasing 03_42
and 03_43 can improve stability of system, but response speed of torque is slowed down. When PG vector
control isn't available, 03_44 is used to regulate stable speed accuracy of the electric motor. If speed is too
low in case of heavy load of the electric motor, 03_44 shall be increased, vice versa this parameter shall be
reduced.

4.7 Start and stop

Related function parameters:
34
Setting scope and description
0～2000
0～6000
10.0～300.0 %
Ex-work setting Change
1000 ○
1000 ○
100.0 ○
Addr
032AH
032BH
032CH