Rockwell Automation 20G PowerFlex 750-Series AC Drives - Manual (Page 365)

Rockwell Automation Publication 750-RM002B-EN-P - September 2013 365
Integrated Motion on the EtherNet/IP Network Applications for PowerFlex 755 AC Drives Chapter 6
are measured then the motor is rotated to measure the flux current of the
Induction motor. The Rated Slip frequency is also calculated:
• This test is best run with the motor disconnected from the load as the
motor spins for some time and there are no travel limits.
• When the test has been completed, click Accept Test Results to save the
results.
Static Motor Test: This test is used if the motor cannot rotate freely or is already
coupled to the load. When this test is run the Resistance and Reactance are
measured then the flux current of the motor is calculated. The Rated Slip
frequency is also calculated:
• The motor will not turn during this test.
• When the test has been completed, click Accept Test Results to save the
results.
Calculate Model: This method calculates the Resistance, Reactance, and Flux
Current of the motor from basic model parameters and the motor parameters
data. No measurements are taken when using this calculation:
• Click Start to start the calculation.
• When the test has been completed, click Accept Test Results to save the
results.
Autotune (inertia test)
The Autotune category measures the system inertia and calculates system
bandwidth tuning numbers. This table summarizes the application type tuning
defaults. An “X” indicates that the system value is selected by default and that the
Velocity and Acceleration Feedforward values are set to 100%.
Application Type System Value
Position Loop
Bandwidth Position
Integrator
Bandwidth Velocity Loop
Bandwidth Velocity
Integrator
Bandwidth Integrator Hold Velocity
Feedforward Acceleration
Feedforward
Custom:
(Advanced tuning) X X
Basic:
(Default tuning parameters) X X
Tracking:
(Winding/unwinding, flying shear,
and web control applications) X X X X X
Point-to-Point:
(Pick-and-place, packaging, cut-to-
length) X X X X
Constant Speed:
(Conveyors, line shaft, crank) X X X X