Danfoss FC 300 Programming Manual page 43

FC 300 Programming Guide
Illustration 2.1: Motor equivalent diagram for an asynchronous
motor
1-30 Stator Resistance (Rs)
Range:
Size related [Ohm]
1-31 Rotor Resistance (Rr)
Range:
Size related [Ohm]
1-33 Stator Leakage Reactance (X1)
Range:
Size related [Ohm]
1-34 Rotor Leakage Reactance (X2)
Option:
[Size related] Ohm
1-35 Main Reactance (Xh)
Option:
[Size related] Ohm
Function:
Set the stator resistance value. Enter the value from a motor data sheet or perform an AMA on a cold motor.
Function:
Fine-tuning R will improve shaft performance. Set the rotor resistance value using one of these methods:
r
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 value manually. Obtain the value from the motor supplier.
r
3. Use the R default setting. The frequency converter establishes the setting on the basis of the motor
r
nameplate data.
Function:
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 value manually. Obtain the value from the motor supplier.
1
3. Use the X default setting. The frequency converter establishes the setting on the basis of the motor
1
name plate data.
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 will measure the value from the motor.
2. Enter the X value manually. Obtain the value from the motor supplier.
2
3. Use the X default setting. The frequency converter establishes the setting on the basis of the motor
2
name plate data.
Function:
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 value manually. Obtain the value from the motor supplier.
h
3. Use the X default setting. The frequency converter establishes the setting on the basis of the motor
h
name plate data.
®
MG.33.M3.02 - VLT is a registered Danfoss trademark
2. How to Programme
43
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