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126 ADV200 • Functions description and parameters list

This function is not available with Regulation mode = Flux vector OL.

With Regulation mode = Flux vector CL the capture procedure consists of forcing the output frequency to the

value measured by the encoder, and then bringing the motor speed to the reference value using the ramp.

SpeedCapture_00.vsd

OutFreq

MotorSpd

OutCurr

Par 3366

Waiting for demagnetiz

Acceleration

Magnetiz

Flux vector CL

With Regulation mode = V/f control the capture procedure consists of altering the inverter output frequency

until the actual motor speed is detected, then increasing the motor speed to the reference value using the

ramp. The procedure can take several seconds, depending on the type of load and parameter settings. If this

function is enabled on a motor at speed = 0 and drive speed reference = 0, the motor might start running until

the moment the drive detects the actual motor speed, after which the motor speed passes to the speed refer-

ence setting, i.e. 0. The initial value of the output frequency after restart and/or enable depends on the setting

of parameters PAR 3350 Speed capture, PAR 3364 Vf catch start freq, PAR 3376 Vf catch lastref dly.

SpeedCapture_01.vsd

OutFreq

MotorSpd

OutCurr

Speed search

Par 3366

Waiting for demagnetiz

Acceleration

Magnetiz

Par 3370 P gain

Par 3372 I gain

Vf control

Par 3368 Vf catch reflux time

Menu PAR Description UM Type FB BIT Def Min Max Acc Mod

22.9.2 3364 Vf catch start freq Hz FLOAT (*) -500.0 500.0 ERWZ V

(*) Default: EU=50,0; USA = 60.0 (PAR 486 Drive region, 0 = EU; 1 = USA)

This parameter is used to congure the frequency at which the procedure to capture a motor that is running

starts. This parameter is used in the case of PAR 3350 Speed capture is set to 2 (Enable&restart) and it is

expired the time set in PRA 3376 Vf catch lastref dly.

gefran ADV200 User Manual

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