Rockwell Automation MD65 User Manual Version 2.0 User Manual

Page 91

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Parameter Descriptions

9-37

Enables/disables sensorless vector control operation.

Set to motor nameplate rated full load amps.

Provides an automatic method for setting IR Voltage Drop (A128)
and Flux Current Ref (A129), which affect sensorless vector
performance. Motor NP FLA (A126) must be set to the motor
nameplate full load amps before running the Autotune procedure.

If the Autotune procedure fails, an F80 SVC Autotune fault is
displayed.

0 = Ready/Idle: The parameter returns to this setting following a
Static Tune or Rotate Tune.

1 = Static Tune: A temporary command that initiates a
non-rotational motor stator resistance test for the best possible
automatic setting of IR Voltage Drop (A128). A start command is
required following the initiation of this setting. The parameter returns
to 0 = Ready/Idle following the test, at which time another start
transition is required to operate the drive in normal mode. Used
when the motor cannot be uncoupled from the load.

A125 Torque Perf Mode

Range:

0 = V/Hz
1 = Sensrls Vect

Default:

1 = Sensrls Vect

See also:

A084, A085, A086, A087, A127

A126 Motor NP FLA

Range:

0.1 to (Drive Rated Amps x 2)

Default:

Drive Rated Amps

See also:

A127

A127 Autotune

Range:

0 = Ready/Idle
1 = Static Tune
2 = Rotate Tune

Default:

0 = Ready/Idle

See also:

A125, A126, A128, A129

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