Rockwell Automation 20B PowerFlex 70, PowerFlex 700 Reference Manual - Manual (Page 116)

Motor Nameplate
116 Rockwell Automation Publication PFLEX-RM001H-EN-P - June 2013
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