gefran ADV200 Functions Description And Parameters List page 118

capture procedure. Various conditions are possible:
Drive enabled and demagnetising for a time > Par 3376 Vf catch lastref dly
Drive enabled and demagnetising for a time < Par 3376 Vf catch lastref dly
OutFreq
MotorSpd
OutCurr
Par 3366
Waiting for demagnetiz
Menu PAR Description
22.8.2 3364 Vf catch start freq
(*) Default: EU=50,0; USA = 60.0 (PAR 486 Drive region, 0 = EU; 1 = USA)
This parameter is used to configure the frequency at which the procedure to capture a motor that is running
starts. This parameter is used if:
First enabling of the drive after power-on
Drive enabled and demagnetising for a time > Par 3376 Vf catch lastref dly
This parameter must be set to a frequency that is higher than the frequency at which the motor is running at the
beginning of the capture procedure. If the conditions are not always identical the maximum frequency or a few
Hz below this must be set. The reference sign setting must be the same as the sign of the frequency at which
the motor is running.
If a frequency value close to the actual frequency is set, the capture time is short. If there is a big difference
between the frequency value setting and the actual frequency, the capture time is longer.
The recommended setting for this parameter is 0 if the function is enabled for use to capture a motor running due
to a temporary disabling of the drive or to capture a motor running in the case of an automatic restart after an
alarm; or in case of enabling after power-on or after prolonged periods of disabling, the motor speed is certainly 0.
Menu PAR Description
22.8.3 3366 Vf catch enable dly
This parameter is used to configure the time to wait for demagnetisation of the motor before executing the pro-
cedure to capture the motor that is running. The waiting time for demagnetisation is measured starting from the
moment the drive detects that the conditions are OK to execute the capture procedure. This parameter is useful
for automatic restarts after an alarm.
If the motor flux is not zero when the enable command is sent the drive might generate the Overcurrent alarm.
The value to set depends on the size of the motor. Large motors have a high rotor time constant and therefore
118
Condition
First enabling of the drive after power-on
Automatic restart after an alarm
Vf control
Par 3368
Search time
Par 3370 P gain
Par 3372 I gain
Speed search Acceleration
Magnetiz
UM Type
Hz FLOAT
Condition
UM Type
ms UINT16
SpeedCapture_01.vsd
FB BIT Def
(*)
FB BIT Def
1000
Frequency value
Par 3364 Vf catch start freq
Par 3364 Vf catch start freq
Last frequency before disabling the drive
Last frequency before the alarm occurred
Min Max
-500.0 500.0
Frequency value
Par 3364 Vf catch start freq
Par 3364 Vf catch start freq
Min Max
10 10000
ADV200 • Functions description and parameters list
Acc Mod
ERWZ V
Acc Mod
ERWZ V