Rockwell Automation SA500 Drive Configuration and Programming - Manual (Page 18)

2-8 SA500 Drive Configuration and Programming
• Motor List
You can select a part number from a list of supported motors to have the specified
default Motor Data values entered automatically. These values should not be
changed or degraded regulator performance may result. The list box will show only
the part number, the horsepower, and the RPM for each motor.
When a motor is selected, the Rated Speed and other motor data parameters will
be filled in automatically. If the motor to be used is not on the list, contact Rockwell
Automation for more information.
• Rated Full Load Speed (RPM) (Range: 10 to 10000)
Enter the rated full load speed of the motor in RPM.
• Gear In Speed (RPM)
Enter the maximum application speed of the motor in RPM. Speed reference input
value 4095 is scaled to equal Gear in Speed. The Gear in Speed value must not be
greater than the rated full load speed.
• Motor Poles (Range: 2 to 16)
The number of poles in the motor is used to determine the relationship between the
drive output frequency and the motor shaft speed. Enter the number of poles in the
motor. Note that this value is the number of motor poles, not motor pole pairs.
• Rated Motor Current (Amps RMS) (Range: 1.00 to 100.00)
The rated motor current is used in scaling the torque loop. Enter the value in amps.
The resolution is 0.01 amps.
• Motor Overload Ratio (%) (Range: 100 to 400)
The motor overload ratio is used in calculating the torque limit. Enter the value in
percent. A warning will be generated if the value entered is not within the limits of
the following equation:
Rated Motor Amps
∗
Motor Overload
÷
100
≤
Power Module Amps
• Stator Inductance (mH) (Range: 0.01 to 50.0)
The stator inductance is used to calculate the amplitude of the triangle wave that
produces the PWM output to the motor.The smaller the inductance, the higher the
gain of the current loop inside the vector and brushless control algorithm. This
parameter has been calculated specifically for the motor selected.
If the motor to be used is not on the list, see Appendix F for stator inductance
calculation. Enter the value in millihenries. The resolution is 0.01mH.
• Torque Gain (Nm/Amp) (Range: 0.001 to 9.999)
The torque gain is used to scale the torque loop. The higher the torque gain, the
more torque that will be produced for a given reference. This parameter has been
calculated specifically for the motor selected.
If the motor to be used is not on the list, see Appendix F for torque gain calculation.
Enter the value in Newton Meters per Amp. The resolution is 0.001 Nm/Amp.