22 Rockwell Automation Publication 750-QS100B-EN-P - August 2020
Step 3: Power Up, Configure the Modular Control Profiles
Enter the Motor Control Mode
Setting the motor control mode determines how the drive controls the motor. There are four basic control modes. Some
of them have different variations for different motor types. The four basic modes are as follows:
• Volts per Hertz (VHz) - The most basic form of motor control. Useful for variable torque applications such as
pumps, fans, and multiple motors in parallel.
• Sensorless Vector (SV) - An enhanced form of VHz control with better low speed operation and better torque
control at low frequencies. Useful for variable torque and simple constant torque applications. If you choose an SV
control mode, we recommend that you run a Motor ID test.
• Economize (Econ) - An enhanced form of Sensorless Vector control designed to reduce energy consumption when
the drive is not accelerating. If you choose Econ, we recommend that you run a Motor ID test.
• Flux Vector (FV) - The highest performance control mode. A control mode that is designed for precise Torque,
Velocity, and/or Position regulation. Usually uses a motor feedback device. Useful for variable torque, constant
torque, and constant power applications. Provides precise position and velocity tracking. Provides excellent
disturbance rejection. This mode is required for position and load sharing applications. If you choose an FV
control mode, it is required that you run a Motor ID test. You may also have to run a Motor Inertia test. We
recommend that you use a Flux Vector control mode for both encoder and encoderless control of permanent
magnet motors.
For the control modes where a Motor ID test or Motor Inertia is recommended or required, these tests are performed
during Step 7: Tune the Motor Side Inverter Control on page 35
.
The motor-type-specific motor control modes are as follows. Choose from these options based on your type of motor
and application:
• Induction Volts Per Hertz (InductionVHz)
• Induction Sensorless Vector (Induction SV)
• Induction Economize (Induct Econ)
• Induction Flux Vector (Induction FV)
• Interior Permanent Magnet Flux Vector (IPM FV)
• Surface Permanent Magnet Flux Vector (SPM FV)
• Permanent Magnet Volts Per Hertz (PM VHz)
• Permanent Magnet Sensorless Vector (PM SV)
• Synchronous Reluctance Volts Per Hertz (SynR VHz)
• Synchronous Reluctance Sensorless Vector (SynR SV)
1. Navigate to parameter 0:65 [Pri MtrCtrl Mode].
2. Press the EDIT soft key.
3. Edit the value to one of the following, choosing the option corresponding to the data collected in Tab l e 3 on
page 15: 1 ‘InductionVHz’, 2 ‘Induction SV’, 3 ‘Induct Econ’, 4 ‘Induction FV’, 5 ‘IPM FV’, 6 ‘SPM FV’, 7 ‘PM
VHz’, 8 ‘PM SV’, 9 ‘SynR VHz’, or 10 ‘SynR SV’.
4. Press the ENTER soft key.
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