Rockwell Automation 20D PowerFlex 700S AC Drives with Phase II Control Reference Manual User Manual

Page 20

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Rockwell Automation Publication PFLEX-RM003E-EN-E - January 2011

Chapter 1 Detailed Drive Operation

Feedback Configuration

The Feedback Configuration submenu asks you to select the feedback device
type. Possible selections are “Encoder 0,” “Encoder 1,” “Aux Speed,” “Motor Sim,”
or “Option Card.” Encoder 0 and Encoder 1 are for the encoders on the I/O
board. When “Encoder 0” or “Encoder 1” are selected, you must also enter the
encoder PPR. “Motor Sim” is to simulate a motor when there is no motor
connected to the drive. “Option Card” can be chosen when either the Resolver or
Hi-Resolution Encoder option cards are installed.

Power Circuit Test

This submenu allows you to perform a diagnostic check to check the output
section of the drive power circuit for shorts or open circuits.

Direction Test

The direction test checks the actual direction relative to the commanded
direction, and checks for proper encoder feedback. The test prompts you to
answer if the motor direction is correct. When it is not, you can either power
down and swap two of the motor leads, or change the drive’s logic to change the
motor direction. Then the test is performed again. The test then checks if the
feedback is positive. When it is not, you can either power down and swap two of
the encoder signals, or you can change the drive’s logic to change the sign of the
feedback. Then the test is performed again.

Motor Tests

This submenu performs the tests to measure the motor characteristics. These tests
can be performed with the motor coupled or uncoupled to the load, but be aware
that the motor will rotate during some of the tests.

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