Danfoss VLT AutomationDrive FC 302, Руководство по программированию, Страница: 56 / 346

1-47 Torque Calibration
Option: Function:
•
Parameter 1-30 Stator Resistance (Rs) .
•
Parameter 1-33 Stator Leakage Reactance
(X1)
.
•
Parameter 1-34 Rotor Leakage Reactance
(X2)
.
•
Parameter 1-37 d-axis Inductance (Ld) .
[4] Every
start
with
store
The frequency converter calibrates the torque at
every start-up, compensating for a possible change
in motor temperature since last start-up. This option
is used to update motor parameters:
•
Parameter 1-30 Stator Resistance (Rs) .
•
Parameter 1-33 Stator Leakage Reactance
(X1)
.
•
Parameter 1-34 Rotor Leakage Reactance
(X2)
.
•
Parameter 1-37 d-axis Inductance (Ld) .
1-48 d-axis Inductance Sat. Point
Range: Function:
Size
related
*
[1 -
500 %]
NOTICE
Run an AMA to set the value of this
parameter. Edit the value manually
only when the application requires a
value other than determined by AMA.
Select the d-axis inductance saturation
point. The frequency converter uses this
value to optimize the performance of SynRM
motors.
Select the value that matches the point
where the inductance equals the mean
value of
parameter 1-37 d-axis Inductance
(Ld) and parameter 1-44 d-axis Inductance
Sat. (LdSat) , as percentage of nominal
current.
1-49 q-axis Inductance Sat. Point
Range: Function:
Size
related
*
[ 0 -
200 %]
NOTICE
Run an AMA to set the value of this
parameter. Edit the value manually
only when the application requires a
value other than determined by AMA.
Enter the q-Axis inductance saturation point.
The frequency converter uses this value to
optimize the performance of IPM motors.
Select the value that matches the point
where the inductance equals the average
value of
parameter 1-38 q-axis Inductance
1-49 q-axis Inductance Sat. Point
Range: Function:
(Lq) and parameter 1-45 q-axis Inductance
Sat. (LqSat) , as percentage of nominal
current.
3.2.8 1-5* Load Indep. Setting
1-50 Motor Magnetisation at Zero Speed
This parameter is not visible on the LCP.
Range: Function:
100 %
*
[0 -
300 %]
NOTICE
Parameter 1-50 Motor Magnetisation at
Zero Speed
has no effect when
parameter 1-10 Motor Construction = [1]
PM, non-salient SPM .
Use this parameter along with
parameter 1-51 Min Speed Normal Magnetising
[RPM]
to obtain a different thermal load on the
motor when running at low speed.
Enter a value which is a percentage of the rated
magnetizing current. If the setting is too low,
the torque on the motor shaft may be reduced.
Magn. current
130BA045.11
Hz
Par.1-50
Par.1-51
100%
Par.1-52 RPM
Illustration 3.7 Motor Magnetization
1-51 Min Speed Normal Magnetising [RPM]
This parameter is not visible on the LCP.
Range: Function:
Size
related
*
[10 -
600 RPM]
NOTICE
Parameter 1-51 Min Speed Normal
Magnetising [RPM]
has no effect
when parameter 1-10 Motor
Construction = [1] PM, non-salient
SPM .
Set the required speed for normal
magnetizing current. If the speed is set
lower than the motor slip speed,
parameter 1-50 Motor Magnetisation at
Zero Speed
and parameter 1-51 Min Speed
Normal Magnetising [RPM] are of no
significance.
Use this parameter along with
parameter 1-50 Motor Magnetisation at
Zero Speed
. See Table 3.6 .
Parameter Descriptions
VLT
®
AutomationDrive FC 301/302
54 Danfoss A/S © 10/2018 All rights reserved. MG33MP02
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