Rockwell Automation GV3000/SE AC Gen. Purpose and Vector Drive Software Start-Up and Ref. Manual - Manual (Page 171)

Programming Reference 4-85
Note that when Forward/Reverse Configuration (P.027) is set to 1, setting this
parameter to r, Fr, or rF may still cause the motor to operate in the reverse direction.
On lower horsepower motors, the value can be increased to allow faster acceleration
and deceleration.
U.031 SVC Sync Direction
When starting into a
rotating load is
required, this
parameter selects the
direction in which the
drive will search in
order to synchronize
to motor speed.
Parameter Range: OFF = Disable synchronization
F = Search starts in motor forward direction
r = Search starts in motor reverse direction
Fr = Search starts in motor forward then reverse
direction
rF = Search starts in motor reverse then forward
direction
Default Setting: OFF
Parameter Type: Configurable
Refer also to parameters: N/A
!
ATTENTION: When starting with search enabled, there will be a several
second delay, and the motor may drift in the forward and reverse direction,
before the motor begins operating in the desired direction even if reverse
has been disabled in P.027. Stay clear of rotating machinery. Failure to
observe this precaution could result in bodily injury.
U.032 SVC Flux Current Regulator Gain
This parameter
specifies the gain of
the flux current
regulator.
For most
applications, it is
recommended that
this parameter not be
adjusted.
This parameter
applies to SVC
operation only.
Parameter Range: 100 to 1500 radians/sec
Default Setting: Power Module-dependent, see Appendix C
Parameter Type: Tunable
Refer also to parameters: U.012 Speed Regulator Proportional Gain
U.013 Speed Regulator Integral Gain
U.030 SVC Slip Adjust