Rockwell Automation GV3000/SE 230VAC 1-20 HP GP & Vector Drive Ver. 6.04 Software Start-Up and Ref. - Manual (Page 162)

4-76 GV3000/SE 230 VAC Drive, Software Reference Version 6.04
U.008 Torque Self-Tune Enable
This parameter
enables the
self-tuning
procedure.
ATTENTION: The motor must be uncoupled from the driven load
during the self-tuning operation or incorrect parameter values will
result. This includes any shaft-coupled devices such as reducers,
belts, or brakes. Failure to observe this precaution could result in
damage to, or destruction of, the equipment.
For FVC operation (U.001 SE), this procedure determines the encoder PPR
selection for parameter U.001 (Encoder PPR). Determining the encoder PPR may
be necessary since the PPR is not always listed on the motor or encoder
nameplate. Determining the magnetizing current ratio is necessary in vector
regulation so that the proper no-load current, or magnetizing current, is set. The
proper magnetizing current is required to develop rated motor torque, speed, and
horsepower in vector regulation.
For FVC and SVC operation, this procedure also determines the value for
parameter U.006 (Magnetizing Current).
This parameter will be set to OFF when self-tuning is completed or aborted. This
parameter only enables self-tuning. It does not start the procedure. Parameters
U.002, U.003, U.004, U.005, and U.007 must be programmed before enabling
self-tuning in U.008. Then the START key can be pressed to start the procedure.
During the test, the motor will accelerate up to 90% of U.005 (Motor Nameplate
RPM) even if this value is greater than the value set in P.004 (Maximum Speed).
!
Parameter Range: ON = Enable self-tuning
OFF = Disable self-tuning
Default Setting: OFF
Parameter Type: Configurable
Refer also to parameters: U.001 Encoder PPR
U.006 Magnetizing Current