Danfoss VLT AutomationDrive FC 302 Programming Manual page 44

Parameter Descriptions
P 1-30
I
1
R
s
U
1
3 3
Illustration 3.6 Motor Equivalent Diagram for an
Asynchronous Motor
1-30 Stator Resistance (Rs)
Range:
Size [ 0.0140 -
related 140.0000
*
Ohm]
1-31 Rotor Resistance (Rr)
Range:
Size [ 0.0100 -
related 100.0000
*
Ohm]
42
VLT
P 1-34
P 1-33
X X'
1δ 2δ
P 1-36 P 1-35
R X
Fe h
Function:
Set the line to common stator resistance
value. Enter the value from a motor
datasheet or perform an AMA on a cold
motor.
NOTICE
For salient PM motors and
synchronous reluctance motors:
AMA is not available.
If only line-line data are available,
divide the line-line value by 2 to
achieve the line to common
(starpoint) value. Alternatively
measure the value with an
ohmmeter, this also takes the
resistance of the cable into account.
Divide the measured value by 2 and
enter the result.
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
parameter 1-47 Torque Calibration.
Function:
Set the rotor resistance value R
improve shaft performance.
1. Run an AMA on a cold motor.
The frequency converter
measures the value from the
®
AutomationDrive FC 301/302 Programming Guide
1-31 Rotor Resistance (Rr)
Range:
P 1-31
R'
r
NOTICE
Parameter 1-31 Rotor Resistance (Rr) does not have effect
when 1-10 Motor Construction = [1] PM, non-salient SPM.
1-33 Stator Leakage Reactance (X1)
Range:
Size
related 400.0000
*
Ohm]
to
r
1-34 Rotor Leakage Reactance (X2)
Range:
Size
related 400.0000
*
Ohm]
MG33MI02 - Rev. 2013-11-20
Function:
motor. All compensations are
reset to 100%.
2. Enter the R
r
Obtain the value from the
motor supplier.
3. Use the R default setting. The
r
frequency converter establishes
the setting based on the motor
nameplate data.
Function:
[ 0.0400 - Set the stator 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
Obtain the value from the
motor supplier.
3. Use the X
1
frequency converter establishes
the setting based on the motor
nameplate data.
See Illustration 3.6.
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
parameter 1-47 Torque Calibration.
NOTICE
This parameter is only relevant for
ASM.
Function:
[ 0.0400 - Set the rotor leakage reactance of the
motor using one of these methods:
value manually.
value manually.
1
default setting. The