Danfoss FC 300 Series User Manual

NOTE!
A simple way to check the sum of X1 + Xh value is to divide
the line to line motor voltage by the sqrt(3) then divide this
value by the no load current. [VL-L/sqrt(3)]/INL = X1 + Xh.
These values are important to properly magnetize the motor.
For high pole motors it is highly recommended to perform
this check.
1-30 Stator Resistance (Rs)
Range: Function:
Application
dependent
*
[Application
dependant]
Set the stator resistance
value. Enter the value from a
motor data sheet or perform
an AMA on a cold motor.
1-31 Rotor Resistance (Rr)
Range: Function:
Application
dependent
*
[Application
dependant]
Fine-tuning R
r
will improve shaft
performance. Set the rotor resistance
value using one of these methods:
1. Run an AMA on a cold
motor. The adjustable
frequency drive will
measure the value from the
motor. All compensations
are reset to 100%.
2. Enter the R
r
value manually.
Obtain the value from the
motor supplier.
3. Use the R
r
default setting.
The adjustable frequency
drive establishes the setting
on the basis of the motor
nameplate data.
1-33 Stator Leakage Reactance (X1)
Range: Function:
Application
dependent
*
[Application
dependant]
Set the stator leakage reactance of
the motor using one of these
methods:
1. Run an AMA on a cold
motor. The adjustable
frequency drive will
measure the value from
the motor.
2. Enter the X
1
value
manually. Obtain the value
from the motor supplier.
1-33 Stator Leakage Reactance (X1)
Range: Function:
3. Use the X
1
default setting.
The adjustable frequency
drive establishes the
setting on the basis of the
motor nameplate data.
1-34 Rotor Leakage Reactance (X2)
Range: Function:
Application
dependent
*
[Application
dependant]
Set the rotor leakage reactance of
the motor using one of these
methods:
1. Run an AMA on a cold
motor. The adjustable
frequency drive will
measure the value from
the motor.
2. Enter the X
2
value
manually. Obtain the value
from the motor supplier.
3. Use the X
2
default setting.
The adjustable frequency
drive establishes the
setting on the basis of the
motor nameplate data.
1-35 Main Reactance (Xh)
Range: Function:
Application
dependent
*
[Application
dependant]
Set the main reactance of the motor
using one of these methods:
1. Run an AMA on a cold
motor. The adjustable
frequency drive will
measure the value from the
motor.
2. Enter the X
h
value
manually. Obtain the value
from the motor supplier.
3. Use the X
h
default setting.
The adjustable frequency
drive establishes the
setting on the basis of the
motor nameplate data.
Parameter Descriptions FC 300 Programming Guide
3-16 MG.33.MA.22 - VLT
®
is a registered Danfoss trademark
3
3

Danfoss FC 300 Series Specifications

General

Brand	Danfoss
Model	FC 300 Series
Category	DC Drives
Language	English