Danfoss VLT AutomationDrive FC 361, Programming Manual

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1-47 Torque Calibration
Option: Function:
[1] 1st start after
pwr-up Calibrates at the first start-up after
power-up and keeps this value until
reset by a power cycle.
[2] Every start Calibrates at every start-up,
compensating for a possible change
in motor temperature since last
start-up. The value is reset after a
power cycle.
[3] 1st start with
store The frequency converter calibrates
the torque at the first start-up after
power-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)
.
[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)
.
4.2.5 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 Magneti-
sation 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
1-50 Motor Magnetisation at Zero Speed
This parameter is not visible on the LCP.
Range: Function:
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 4.6 Motor Magneti-
zation
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 signif-
icance.
Use this parameter along with
parameter 1-50 Motor Magnetisation
at Zero Speed
. See Table 4.3 .
1-52 Min Speed Normal Magnetising [Hz]
Range: Function:
Size
related
*
[ 0 - 250.0
Hz] Set the required frequency for
normal magnetizing current. If the
frequency is set lower than the
motor slip frequency,
parameter 1-50 Motor Magnetisation
at Zero Speed
is inactive.
Parameter Descriptions VLT® AutomationDrive FC 361
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