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3.3.4 1-5* Load Indep. Setting
Parameters for setting the load-independent motor settings.
1-50 Motor Magnetization at Zero Speed
Range:
Function:
100 %*
[0 - 300 %]
Use this parameter along with par.1-51
Min Speed Normal Magnetizing [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.
1-51 Min Speed Normal Magnetizing [RPM]
Range:
Function:
15. RPM*
[10 - 300 RPM]
Set the required speed for normal magnetizing current. If the speed is set lower than the motor slip
speed, par.1-50
Motor Magnetization at Zero Speed
Use this parameter along with par.1-50
Motor Magnetization at Zero Speed
Motor Magnetization at Zero Speed
1-52 Min Speed Normal Magnetizing [Hz]
Range:
Function:
0.5 Hz*
[0.3 - 10.0 Hz]
Set the required frequency for normal magnetizing current. If the frequency is set lower than the
motor slip frequency, par.1-50
Motor Magnetization at Zero Speed
are inactive.
Use this parameter along with par.1-50
Motor Magnetization at Zero Speed
Motor Magnetization at Zero Speed
3.3.5 1-6* Load Depend. Setting
Parameters for adjusting the load-dependent motor settings.
1-60 Low Speed Load Compensation
Range:
Function:
100 %*
[0 - 300 %]
Enter the % value to compensate voltage in relation to load while the motor is running at low speed,
and obtain the optimum U/f characteristic. The motor size determines the frequency ranges within
which this parameter is active.
Motor size
Change-over
0.3–10 hp [0.25–7.5 kW]
< 10 Hz
15–60 hp [11–45 kW]
< 5 Hz
75-738 hp [55-550 kW]
< 3-4 Hz
3 Parameter Description
VLT
®
HVAC Drive Programming Guide
3-24
MG.11.C6.22 - VLT
®
is a registered Danfoss trademark
3