Flux Current Configurations (Flux Config); Control Of The Flux Current Maximum Limit (Flux Max Limit); Control Of The Magnetizing Current (Magnetiz Config) - GE AV-300i User Manual

1.10 FLUX CURRENT CONFIGURATIONS (FLUX CONFIG)

1.10.1 Control of the Flux Current Maximum Limit (Flux Max Limit)

This Function allows the user to control the maximum value of the Flux current. The function is linked to the
control of the voltage loop. In a condition where the Flux is = 0, the voltage regulator prevails by controlling the
motor. It means that it is only possible to further limit the requirement of the voltage loop.
In case the Drive is active in the constant torque area, it is possible to set an overflux up to 115% of the rated flux.
This is possible, obviously, only if the motor/drive combination is in a position to supply a sufficient magnetizing
current.
The Flux max lim src source allows to select the function control signal. In the standard configuration the
source is connected to Int flx maxlim, a parameter which can be set in cfg.
N !
OTE
The Function is active only in a Sensorless and Field oriented mode.
The input is: · Flux max lim src
Description:
FLUX CONFIG
FLUX CONFIG
Flux max lim src
Int flx maxlim
In use flx max lim

1.10.2 Control of the Magnetizing Current (Magnetiz Config)

The Function is active only in a Sensorless and Field oriented mode and is useful for undesidered motor shaft
rotation. It allows to lock the Flux position, Lock flux, and to set a Ramp time of the magnetizing current Magn
ramp time.
In the configurations it is possible to start the Lock flux function. Via the Lock flux pos parameter, it is possible
to lock the flux position when the following selected condition is satisfied:
·
Off
·
At magnetization
·
At Spd=0
·
At magn & Spd=0
·
At magn and Ref=0
AV-300i Version 2 User's Guide
Flux max limit
Flux max lim src
Flux max lim src
Flux max lim cfg
Int flx maxlim
Flux max lim mon
In use flx max lim
SAVE PARAMETERS
Selection of the Flux max lim source
Internal value of Flux max limit
Flux limit value in use
non-active function
to the magnetizing current
with a Speed 0
to the magnetizing current and with a Speed 0
magnetizing current and Ref 0
—————— Function Description ——————
Ch.1
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