Motor Nameplate 2-117
Motor Nameplate [Motor NP Volts]
The motor nameplate base voltage defines the output voltage, when
operating at rated current, rated speed, and rated temperature.
[Motor NP FLA]
The motor nameplate defines the output amps, when operating at rated
voltage, rated speed, and rated temperature. It is used in the motor thermal
overload, and in the calculation of slip.
[Motor NP Hz]
The motor nameplate base frequency defines the output frequency, when
operating at rated voltage, rated current, rated speed, and rated temperature.
[Motor NP RPM]
The motor nameplate RPM defines the rated speed, when operating at
motor nameplate base frequency, rated current, base voltage, and rated
temperature. This is used to calculate slip.
[Motor NP Power]
The motor nameplate power is used together with the other nameplate
values to calculate default values for motor parameters to and facilitate the
commissioning process. This may be entered in horsepower or in kilowatts
as selected in the previous parameter or kW for certain catalog numbers and
HP for others.
[Motor NP Pwr Units]
Determines the units for [Motor NP Power]. Possible setting are:
0 “Horsepower” - units are displayed in HP
1 “kilowatts” - units are displayed in kW
The following are only available with the PowerFlex 700 Vector option
2 “Convert HP” - converts units to HP (from kW) by dividing [Motor NP Power] by 0.746.
3 “Covert kW” - converts units to kW (from HP) by multiplying [Motor NP Power] by 0.746.
[Motor Poles]
Defines the number of motor poles in the motor. [Motor Poles] is calculated
automatically if the user enters the motor nameplate data through the
Start-up menu of an LCD HIM. The number of motor poles is defined by:
Vector
P =
120f
N
where:
P = motor poles
f = base motor frequency (Hz)
N = base motor speed (RPM)
P is rounded up to the nearest whole even number
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