10 running dynamic motor tests, 10 running dynamic motor tests -17 – Rockwell Automation SA3100 Diag,Troublesht,Startup,Guide User Manual

Page 49

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Installation and Start-Up Guidelines

4-17

Step 4. The Drive’s AC output phase rotation must match the resolver’s orientation.

Output phase rotation (UVW or UWV) is determined by setting the Output
Phase Rotation parameter, assuming the motor leads are correctly
connected. Resolver orientation is determined by the cosine lead
connections.

a. Place a value of zero in the Torque Reference register (register 102/1102,

TRQ_REF%). Turn on the drive.

b. Slowly increase the value in register 102/1102.

c. If the motor begins turning, verify that the motor shaft is turning in a

clockwise direction. Examine the contents of the Resolver Scan Position
register (register 215/1215, RES_SCN_POS%). The value in the register
should be increasing.

If the motor does not turn, place a value of zero in register 102/1102 and turn
off the drive. Change the Output Phase Rotation parameter. Regenerate the
parameter object file and reload it to the rack. Restart the drive. Slowly
increase the value in register 102/1102 and verify that the motor is turning.

d. If the motor shaft is turning in a counter-clockwise direction and the

application requires that a clockwise shaft rotation be identified as
“forward” (i.e., the value in register 215/1215 is increasing), perform the
following:

Turn the drive off and switch the resolver’s cosine wires. Change the Output
Phase Rotation parameter. Regenerate the parameter object file and reload
it to the rack.

e. Verify the motor shaft rotation is in the desired direction by repeating steps

a and b.

Step 5. Verify that the motor speed can be regulated. The method used to verify

speed regulation will depend upon your application.

Step 6. Perform the resolver balance calibration procedure. This procedure is also

described in the PMI Regulator instruction manual (S-3057). The Resolver
Balance Calibration Completed bit (register 201/1201, bit 7, RES_BAL@) will
be on when the procedure is complete.

If the Tuning Aborted Warning bit (register 203/1203, bit 5, WRN_TUN@) is
also on, it indicates that the procedure was unsuccessful (caused by leaving
the resolver uncoupled during the procedure or using longer than
recommended cable runs) or yielded unusual results (sine/cosine
magnitudes are not within 5% of each other). The result of this procedure is
stored in local tunable RES_BAL%.

4.7.10 Running Dynamic Motor Tests

The dynamic motor tests complete the drive start-up. The drive is tuned by running the
complete system without material in order to adjust motor tracking, maximum speeds,
vernier adjustments, and machine section speed adjustments.

The driven machine is then run under actual operating conditions with a load in order
to adjust gain values, feedback devices, limit switches, etc., as required, to obtain the
specified performance.

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