Danfoss FC 300, Programming Manual

Page: 43 / 205

Illustration 2.1: Motor equivalent diagram for an asynchronous
motor
1-30 Stator Resistance (Rs)
Range: Function:
Size related [Ohm] 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:
Size related [Ohm] 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 frequency converter 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 frequency converter establishes the setting on the basis of the motor
nameplate data.
1-33 Stator Leakage Reactance (X1)
Range: Function:
Size related [Ohm] Set the stator leakage reactance of the motor using one of these methods:
1. Run an AMA on a cold motor. The frequency converter will measure the value from the motor.
2. Enter the X
1
value manually. Obtain the value from the motor supplier.
3. Use the X
1
default setting. The frequency converter establishes the setting on the basis of the motor
name plate data.
1-34 Rotor Leakage Reactance (X2)
Option: Function:
[Size related] Ohm Set the rotor leakage reactance of the motor using one of these methods:
1. Run an AMA on a cold motor. The frequency converter 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 frequency converter establishes the setting on the basis of the motor
name plate data.
1-35 Main Reactance (Xh)
Option: Function:
[Size related] Ohm Set the main reactance of the motor using one of these methods:
1. Run an AMA on a cold motor. The frequency converter 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 frequency converter establishes the setting on the basis of the motor
name plate data.
FC 300 Programming Guide 2. How to Programme
MG.33.M3.02 - VLT ® is a registered Danfoss trademark
43
2