Danfoss VLT AQUA Drive FC 202 Programming Manual page 46

Parameter Description
1-34 Rotor Leakage Reactance (X2)
Range:
Size [ 0.0400 -
related 400.0000
*
Ohm]
3 3
1-35 Main Reactance (Xh)
Range:
Size [ 1.0000 -
related 10000.0000
*
Ohm]
44
Programming Guide
Function:
Set the rotor leakage reactance of the
motor using one of these methods:
1. Run an AMA on a cold motor.
The frequency converter
measures the value from the
motor.
2. Enter the X value manually.
2
Obtain the value from the
motor supplier.
3. Use the X default setting. The
2
frequency converter establishes
the setting based on the motor
nameplate data.
See Illustration 3.4.
NOTICE
The parameter value is updated
after each torque calibration if
option [3] 1st start with store or
option [4] Every start with store is
selected in parameter 1-47 Torque
Calibration.
NOTICE
This parameter is only relevant for
ASM.
Function:
NOTICE
This parameter cannot be
adjusted while running.
Set the main reactance of the motor
using one of these methods:
1. Run an AMA on a cold motor.
The frequency converter
measures the value from the
motor.
2. Enter the X value manually.
h
Obtain the value from the
motor supplier.
3. Use the X default setting. The
h
frequency converter
establishes the setting on the
basis of the motor name plate
data.
Danfoss A/S © Rev. 2014-01-21 All rights reserved.
NOTICE
Parameter 1-35 Main Reactance (Xh) does not have effect
when parameter 1-10 Motor Construction = [1] PM, non-
salient SPM.
1-36 Iron Loss Resistance (Rfe)
Range: Function:
NOTICE
Size [ 0 -
related 10000.000
*
This parameter cannot be
Ohm]
adjusted while the motor is
running.
Enter the equivalent iron loss resistance
(R ) value to compensate for iron
Fe
losses in the motor.
The R
performing an AMA.
The R
torque control applications. If R
unknown, leave parameter 1-36 Iron
Loss Resistance (Rfe) on default setting.
NOTICE
This parameter is not available from the LCP.
1-37 d-axis Inductance (Ld)
Range: Function:
NOTICE
Size [ 0.000 -
related 1000 mH]
*
This parameter is only active when
parameter 1-10 Motor Construction
has the value PM, non-salient SPM
[1] (Permanent Magnet Motor).
Enter the value of the d-axis inductance.
Obtain the value from the PM motor
data sheet.
Stator resistance and d-axis Inductance values are
normally, for asynchronous motors, described in technical
specifications as between line and common (starpoint). For
PM motors they are typically described in technical specifi-
cations as between line-line. PM motors are typically built
for star connection.
value cannot be found by
Fe
value is especially important in
Fe
is
Fe
MG20O702