Operating instructions

VLT
®
5000 FLUX
■ Additional Motor Parameters
The motor data in parameter 150-158 must be
matching the specific motor, in order for the motor to
run properly. Factory settings are figures based on
common motor parameter values from normal standard
motors. If the motor parameters are not set correctly,
it may cause a malfunction of the drive system.
If the motor data is not known it is recommended
to perform an AMA (Automatic Motor Adaptation).
See section Automatic Motor Adaptation.TheAMA
sequence will adjust all motor parameters except
the moment of inertia of the rotor.
Motor equivalent diagram for an asyn-
chronous motor:
NB!:
If the settings in parameters 102-106 are
changed, parameters 150-158 will return
to factory default settings.
150 Stator resistance
(STATOR RESIST)
Value:
Ohm
✭ Depends on unit
Function:
Sets the value of the motor stator resistance
for the Flux Vector control.
151 Rotor resistance
(ROTOR RESIST)
Value:
Ohm
✭ Depends on unit
Function:
A manually entered Rotor resistance, R
2
’ must
apply to a cold motor.
Shaft performance can be improved by fine-tuning R
2
’.
Description of choice:
R
2
’ can be set as follows:
1. Automatic Motor Adaptation, where the frequency
converter measures on the motor to determine the
value. All compensations are reset to 100%.
2. The motor supplier states the value.
3. The factory settings of R
2
’, selected by the
frequency converter itself on the basis of the
motor nameplate data, is used.
152 Stator Leakage Reactance
(STATOR LEAKAGE)
Value:
Ohm
✭ Depends on unit
Function:
Set the stator leakage reactance of the motor.
Description of choice:
X
1
can be set as follows:
1. Automatic Motor Adaptation, where the
frequency converter measures on the motor
to determine the value.
2. The motor supplier states the value.
3. The factory setting of X
1
, selected by the
frequency converter itself on the basis of the
motor nameplate data, is used.
153 Rotor Leakage Reactance
(ROTOR LEAKAGE)
Value:
Ohm
✭ Depends on unit
Function:
Set the rotor leakage reactance of the motor.
Description of choice:
X
2
can be set as follows:
1. Automatic Motor Adaptation, where the
frequency converter measures on the motor
to determine the value.
2. The motor supplier states the value.
3. The factory setting of X
2
, selected by the
frequency converter itself on the basis of the
motor nameplate data, is used.
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
MG.55.A7.02 - VLT is a registered Danfoss trademark
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