gefran ADV200 User Manual

ADV200 • Functions description and parameters list 127
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 UM Type FB BIT Def Min Max Acc Mod
22.9.3 3366 Vf catch enable dly ms UINT16 CALCF 10 30000 ERWZ V
This parameter is used to congure 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 ux is not zero when the enable command is sent the drive might generate the Overcurrent alarm.
The value is pre-calculated by the drive according to the motor data entered. Large motors have a high rotor
time constant and therefore require a long demagnetisation time.
Menu PAR Description UM Type FB BIT Def Min Max Acc Mod
22.9.4 3368 Vf catch reflux time s FLOAT CALCF 0.1 100.0 ERW V
It is the time the inverter takes to ramp the output voltage from 0% to 100% during the magnetizing phase
Its value is automatically calculated by the inverter itself once the motor data (indicated in the nameplate of the
motor) has been introduced. If the motor is magnetized too quickly, there is the risk the inverter trips due to high
currents.
Usually the magnetizing time for a 5,5kW motor is about 600-800 ms . For a 630 kW motor it is about 9-10
seconds
Menu PAR Description UM Type FB BIT Def Min Max Acc Mod
22.9.5 3370 Vf catch Kp gain perc FLOAT CALCF 0.0 100.0 ERW V
This is the proportional gain of the PI regulator which performs the searching of the synchronism frequency by
monitoring the active component of motor current
Its value is calculated by the drive during the commissioning phase. The correct motor data are needed.
Menu PAR Description UM Type FB BIT Def Min Max Acc Mod
22.9.6 3372 Vf catch Ti time ms UINT16 CALCI 10 10000 ERW V
This is the integral time of the PI regulator which performs the searching of the synchronism frequency by
monitoring the active component of the motor current.
Its value is calculated by the drive during the commissioning phase. The correct motor data are needed.
Menu PAR Description UM Type FB BIT Def Min Max Acc Mod
22.9.7 3376 Vf catch lastref dly ms UINT16 0 0 30000 ERWZ V
This parameter is needed only when PAR 3350 = 2 Enable&Restart.
This parameter is used to set the time within which the drive must be enabled in order to start the capture pro-
cedure at the output frequency present before disabling the drive. If the time that elapses from the moment the
drive is disabled exceeds the time set in this parameter, the capture procedure starts from the frequency set in
parameter 3364 Vf catch start freq. This parameter value has to be set > IPA3366 value to start the capture
procedure at the output frequency present before disabling the drive.
Menu PAR Description UM Type FB BIT Def Min Max Acc Mod
22.9.8 3388 Vf catch search volt perc UINT16 10 1 20 ERW V
It denes the reduction level applied to the output voltage during the speed searching phase. Typical value are
in the range 5 … 15% . Low values allows to perform a smother synchronization but with longer search time.

gefran ADV200 Specifications

General

Brand	gefran
Model	ADV200
Category	Inverter
Language	English