Vonsch Quatrofrem Series, Конфигурация и диагностика

Страница: 62 / 180

UNIFREM v.3.41x
10 May 2017 Page 62 from 180
Name [ID] Description Def.
Turned on Resonance damping is turned on.
Effect dVdc on Fs
[514]
Setting the resonance damping gain of the DC voltage derivation. 0,200
- 100,000 ÷
100,000
Sets the damping rate. Oscillation can increase if this rate is too high and an irregular
noise can be heard from the motor.
Effect dwls on
dFs [516]
Setting the resonance damping gain from the stator current frequency change. 0,000
- 100,000 ÷
100,000
Sets the damping rate. Oscillation can increase if this rate is too high and an irregular
noise can be heard from the motor.
Effect dIs on Us
[515] Resonance damping gain from the derivative of the active and reactive
component of the stator current to active and reactive voltage components.
0,200
- 10,000 ÷ 10,000
Sets the damping rate. Oscillation can increase if this rate is too high and an irregular
noise can be heard from the motor.
Effect dIs2 on
Us2 [1592] The weight of the reactive component of the Is2 stream on the reactive voltage
component Us2.
0,000
- 100,000 ÷
100,000
The overall rate of the damping of the reactive current component is the result of
multiplying Effect dIs on Us [515] (page 62) and this parameter. If the values are too
high, vibrations can be amplified and a noise can be heard from the motor.
V/f Identification
Rs [383] Turning on of the automatic identification mode of the stator resistance. For V/f
control mode only. Turned
off
Turned on
Identification of the stator resistance is turned on. At every start and satisfying the
conditions of measurement (low speed) the resistance is identified and written to
parameter Stator resistance [345] (page 45).
Turned off Stator resistance is not identified.
Mag. current
identification
[384]
Turning on of the automatic magnetizing current identification of the motor. (V/f
control only) Turned
off
Turned on
Magnetizing current identification during the motor operation is turned on. When the
measuring conditions are satisfied (rotation speed range to Fn, idle operation), the
magnetizing current is identified and its values is saved to the Magnetizing current [355]
(page 45) parameter.
Turned off Magnetizing flux will not be identified.
7.5.3 VECTOR CONTROL
Group of parameters number [438]
Parameters affecting the control blocks and controllers in the vector control mode (see the parameter Motor
control method [451] (page 57)).
Detailed description of vector control can be found on www.vonsch.sk, in the section Support.
CURRENT CONTROLLER (CC)
Group of parameters number [446]
Current controller parameters. Output of current controllers is the voltage. For smooth operation, the precise
value of the parameters Leakage inductance [440] (page 45) and Stator resistance [345] (page 45) is
required.
MENU \ SETTINGS \ CONTROL AND REGULATION \ VECTOR CONTROL \ CURRENT CONTROLLER (CC)
Name [ID] Description Def.
CC Damping [443]
Current controller damping coefficient. Decreasing the value increases the
current control loop bandwidth at the cost of a higher overshoot.
1,30
0,20 ÷ 3,00
CC Dynamics
[447]
Current controller dynamics (frequency bandwidth). 100 Hz
10 Hz ÷ 1000 Hz
Curr. cont.
decupling [157]
Decoupling of the voltage output of the current controllers.
Turned
off
Turned off | Turned on