Rockwell Automation GV3000/SE AC Gen. Purpose and Vector Drive Software Start-Up and Ref. Manual - Manual (Page 129)

Programming Reference 4-43
The absolute value of the auto reference is limited between Minimum Speed (P.003)
and Maximum Speed (P.004) before it is used to preset the manual reference.
Therefore, when this feature is enabled (P.053 = ON), and the auto reference is a
negative value, a direction change will occur when the transition is made from AUTO
to MANUAL. Verify that the auto reference is a positive value and the
FORWARD/REVERSE command is appropriate to the application before making the
transition from AUTO to MANUAL.
Important: If the manual reference is being modified using the front-panel
keypad/display when the transition from AUTO to MANUAL is made, the
manual reference may not be preset with the auto reference.
Refer to chapter 3 for more information on the AUTO/MAN key and the AUTO LED.
P.053 Manual Reference Preset Enable
When ON is selected,
the manual reference
will be preset with the
auto reference value
when the transition is
made from AUTO to
MANUAL.
Parameter Range: OFF = Do not preset the manual reference
ON = Preset the manual reference with the auto
reference at the transition from AUTO to
MANUAL
Default Setting: OFF
Parameter Type: Tunable
Refer also to parameters: P.027 Forward/Reverse Configuration
P.028 Speed Display Scaling
!
ATTENTION: The absolute value of the auto reference is used to preset
the manual reference. When this feature is enabled (P.053 = ON), and
the auto reference is a negative value, a direction change will occur when
the transition is made from AUTO to MANUAL. Verify that the auto
reference is a positive value and the FORWARD/REVERSE command
is appropriate to the application before making the transition from AUTO
to MANUAL. Failure to observe this precaution may result in damage to,
or destruction of, the equipment.