Rockwell Automation 1336E IMPACT Adjustable Frequency AC Drive User Manual V 1-4.XX User Manual

Page 326

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13-14

Understanding the Auto-tuning Procedure

7

Running
The drive is currently running.

8 – 11

Reserved

12

Timeout
The inertia test has run for one minute without measuring at least a 5% change in motor speed. Possible excessive load.
Try running a higher level of Autotune Torque (parameter 164).

13

No Trq Lim
The inertia test has measured a Motor Speed (parameter 81) in excess of half the Autotune Speed (parameter 165), but
a Torque Limit Sts (parameter 87) has not been indicated. The drive enters a torque limit condition at the start of the
inertia test.

• Make sure the motor is stopped or at least rotating at less than half the auto-tune speed before beginning the inertia

test.

• If the motor is not rotating at the start of the inertia test, investigate encoder and related wiring as a source for

incorrect speed feedback.

If this bit is set:

Then:

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