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Rockwell Automation 20B PowerFlex 700 AC Drives Vector Control (v4.001 and up) User Manual

Page 114

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114

Rockwell Automation Publication 20B-UM002G-EN-P - July 2014

Appendix C

Application Notes

4. Press Start and run the drive in the desired direction. Observe the

direction of motor rotation.

If rotation is not in the desired direction:
remove drive power and reverse the two motor leads, or . . .
set bit 5 of [Compensation], parameter 56 to “Mtr Lead Rev.”

5. With the drive running, observe [Encoder Speed], parameter 415. If the

sign of the encoder is not the same as the displayed frequency, remove drive
power and reverse encoder leads A and A NOT.

6. With the drive running, verify correct motor rotation and encoder

direction. Set [Motor Fdbk Type], parameter 412 to “1, Quad Check.”
Stop the drive.

Rotate AutoTune Test

7. Set the following parameters as shown.

8. Start the drive and run the motor in the desired direction. Parameters 062,

063, 064, and 121 will be updated.

Inertia AutoTune Test

9. Set [Inertia Autotune], parameter 067 to “1, Inertia Tune.”

10. Press Start and run the motor in the direction desired. Parameters 445,

446, and 450 will be updated.

11. Set [Speed Desired BW], parameter 449 to desired setting.
12. Set up is complete - check for proper operation.

ATTENTION: In this test the following conditions will occur:

The motor will be run for 12 seconds at base frequency (60 Hz). Note that

equipment travel during this 12 second interval can exceed equipment limits.
However, travel distance can be reduced by setting [Maximum Speed],
parameter 82 to a value less than 45 Hz (i.e. 22.5 Hz = 12 seconds at 30 Hz).

The brake will be released without torque provided by the drive for 15 seconds.

To guard against personal injury and/or equipment damage, this test should not be
performed if either of the above conditions are considered unacceptable by the
user.

No.

Name

Value

Notes

053

[Motor Cntl Sel]

“4, FVC Vector”

080

[Feedback Select]

“3, Encoder”

061

[Autotune]

“2, Rotate Tune”