Danfoss VLT FC 100 Series Programming Manual page 42

3. Parameter Description
3.3.3. 1-3* Adv. Motor Data
Parameters for advanced motor data. The motor data in par. 1-30 - par. 1-39 must match the relevant motor in order to run the motor optimally. The
default settings are figures based on common motor parameter values from normal standard motors. If the motor parameters are not set correctly, a
malfunction of the frequency converter system may occur. If the motor data is not known, running an AMA (Automatic Motor Adaptation) is recommended.
Automatic Motor Adaptation
See the
loss resistance (par. 1-36).
Parameters 1-3* and 1-4* cannot be adjusted while the motor is running.
3
Illustration 3.1: Motor equivalent diagram for an asynchronous motor
1-30 Stator Resistance (Rs)
Range:
Depending on motor data! [Ohm]
1-35 Main Reactance (Xh)
Range:
Depending on motor data. [Ohm]
This parameter cannot be adjusted while the motor is running.
1-36 Iron Loss Resistance (Rfe)
Range:
*
M-TYPE [0 - 10.000 Ω]
This parameter cannot be adjusted while the motor is running.
1-39 Motor Poles
Range:
*
[Value 2 - 100 poles] Enter the number of motor poles.
4-polemotor
42
section. The AMA sequence will adjust all motor parameters except the moment of inertia of the rotor and the iron
Function:
Set the stator resistance value. Enter the value from a motor data sheet or perform an AMA on a cold motor.
This parameter cannot be adjusted while the motor is running.
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.
Function:
Enter the equivalent iron loss resistance (R
The R value cannot be found by performing an AMA.
Fe
The R value is especially important in torque control applications. If R
Fe
setting.
Function:
Poles ~n @ 50 Hz
n
2 2700 - 2880
4 1350 - 1450
6 700 - 960
MG.11.C5.02 - VLT ®
®
VLT HVAC Drive Programming Guide
) value to compensate for iron losses in the motor.
Fe
Fe
~n @60 Hz
n
3250 - 3460
1625 - 1730
840 - 1153
is a registered Danfoss trademark
is unknown, leave par. 1-36 on default