Danfoss VLT HVAC Basic Drive FC 100 Series Programming Manual page 38

Parameters
NOTE!
If one of the settings in parameter group 1-2* Motor Data
is changed, the advanced motor parameters,1-30 Stator
Resistance (Rs) to 1-39 Motor Poles, will return to default
3 3
setting.
This parameter cannot be adjusted while the motor is
running.
NOTE!
Full AMA should be run without filter only while reduced
AMA should be run with filter.
1-30 Stator Resistance (Rs)
Range:
Size related
*
99.99 Ohm]
1-33 Stator Leakage Reactance (X1)
Range:
Size related
*
Size related
*
1-35 Main Reactance (Xh)
Range:
Size [ 0.0 -
related 999.9
*
Ohm]
NOTE!
This parameter cannot be adjusted while running.
3-10
Function:
[ 0.0 - 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:
[ 0.0 - 999.9 Ohm] Set stator leakage reactance of
motor.
[0.0–999.9 Ohm]
Function:
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 value manually.
h
Obtain the value from the motor
supplier.
3. Use the X default setting. The
h
adjustable frequency drive
establishes the setting on the
basis of the motor nameplate
data.
MG18B222 - VLT
®
VLT HVAC Basic Drive Programming Guide
1-37 d-axis Inductance (Ld)
Range:
Size related
1-39 Motor Poles
Range:
4 [2 -
*
100 ]
1-40 Back EMF at 1000 RPM
Range:
Size related
1-50 Motor Magnetisation at Zero Speed
Range:
100 %
*
1-52 Min Speed Normal Magnetising [Hz]
Range:
0 Hz
*
Hz]
1-55 U/f Characteristic - U
Range:
Size related
®
is a registered Danfoss trademark
Function:
[ 0 - 1000 ] Obtain the value from the permanent
*
magnet motor data sheet. The d-axis
inductance cannot be found by
performing an AMA.
Function:
Enter the number of motor poles.
Poles ~n @ 50 Hz
n
2 2,700–3,000
4 1,350–1,500
6 700–1,000
Table 3.3
The table shows the number of poles for normal
speed ranges of various motor types. Define
motors designed for other frequencies separately.
The motor pole value is always an even number,
because it refers to the total number of poles, not
pairs of poles.
This parameter cannot be adjusted while the
motor is running.
Function:
[ 10 - 9000 V] Line-Line RMS back EMF voltage at
*
1000 RPM
[ 0 - 300.0 %]
Function:
[ 0 - 10.0 Set the required frequency for normal
magnetizing current.
Use this parameter along with 1-50 Motor
Magnetisation at Zero Speed. See drawing
for 1-50 Motor Magnetisation at Zero Speed.
Function:
[0 - 999 V] Enter voltage at each frequency point
*
to manually form a U/f characteristic
matching motor. Frequency points are
defined in 1-56 U/f Characteristic - F.
~n @ 60 Hz
n
3,250–3,600
1,625–1,800
840–1,200
Function: