Danfoss VLT AQUA Drive FC 200 Programming Manual page 49

Parameter Description
3.3.6 1-5* Load Indep. Setting
1-50 Motor Magnetization at Zero Speed
Range:
100 % [0 - 300 %]
*
NOTICE!
1-50 Motor Magnetization at Zero Speed will not have effect
when 1-10 Motor Construction = [1] PM, non-salient SPM.
1-51 Min Speed Normal Magnetizing [RPM]
Range: Function:
Size [10 - 300 Set the required speed for normal
related RPM] magnetizing current. If the speed is set
*
lower than the motor slip speed,
1-50 Motor Magnetization at Zero Speed
and 1-51 Min Speed Normal Magnetizing
[RPM] are of no significance.
Use this parameter along with
1-50 Motor Magnetization at Zero Speed.
See Table 3.8.
NOTICE!
1-51 Min Speed Normal Magnetizing [RPM] will not have
effect when 1-10 Motor Construction = [1] PM, non-salient
SPM.
1-52 Min Speed Normal Magnetizing [Hz]
Range: Function:
Size [ 0.3 - Set the required frequency for normal
related 10.0 Hz] magnetizing current. If the frequency is
*
set lower than the motor slip frequency,
1-50 Motor Magnetization at Zero Speed
and 1-51 Min Speed Normal Magnetizing
[RPM] are inactive.
Use this parameter along with
1-50 Motor Magnetization at Zero Speed.
See Table 3.8.
NOTICE!
1-52 Min Speed Normal Magnetizing [Hz] will not have effect
when 1-10 Motor Construction = [1] PM, non-salient SPM.
1-55 V/f Characteristic - V
Range: Function:
Size [0 - 1000 Enter the voltage at each frequency
related V] point to manually form a U/f charac-
*
teristic matching the motor.
The frequency points are defined in
1-56 V/f Characteristic - f.
This parameter is an array parameter
[0-5] and is only accessible when
®
VLT AQUA Drive Programming Guide
1-55 V/f Characteristic - V
Range:
Function:
1-56 V/f Characteristic - f
Range:
Size
related
Figure 3.9
1-58 Flystart Test Pulses Current
Range:
Size
related
®
MG20O622 - VLT is a registered Danfoss trademark
Function:
1-01 Motor Control Principle is set to [0]
U/f.
Function:
[ 0 - Enter the frequency points to
1000.0 Hz] manually form a U/f-characteristic
*
matching the motor.
The voltage at each point is defined in
1-55 V/f Characteristic - V.
This parameter is an array parameter
[0–5] and is only accessible when
1-01 Motor Control Principle is set to [0]
U/f.
Function:
[ 0 - Set the magnitude of the magnetizing current
0 %] for the pulses used to detect the motor
*
direction. The value range and function
depends on parameter 1-10 Motor Construction:
[0] Asynchron: [0-200%]
Reducing this value will reduce the generated
torque. 100% means full nominal motor
current. In this case, the default value is 30%.
[1] PM non-salient: [0-40%]
A general setting of 20% is recommended on
PM motors. Higher values can give increased
performance. However, on motors with back
EMF higher than 300VLL (rms) at nominal
speed and high winding inductance (more
than 10mH) a lower value is recommended to
avoid wrong speed estimation. The parameter
is active when 1-73 Flying Start is enabled.
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