Rockwell Automation FlexPak 3000 Power Module Version 4.2 - Manual (Page 149)

APPENDIX B
49’1340 e FlexPak 3000 B-45
S-CURVE ROUNDING (P.014)
Rate of change (positive or negative) of acceleration and deceleration to smooth the SPEED RAMP
OUTPUT (e.g., if equal to 20, then 40 % of the acceleration and deceleration time will be spent
smoothing and the remainder will be a linear ramp).
0% = linear ramp, no rounding;
50% = "smoothing" for the entire ramp.
Parameter Range: 0 to 50%
Default Setting: 0%
Parameter Type: Tuneable
OIM Menu Path(s): Drive Reference - Drive Reference Ramp
Refer also to Parameters: ACCELERATION TIME (P.001),
DECELERATION TIME (P.002),
TRIM MODE SELECT (P.110)
In regard to TRIM MODE SELECT, S-CURVE ROUNDING will interfere with the ACCELERATION TIME
and the DECELERATION TIME so that the draw will not be constant. Therefore, it is recommended that
S-CURVE ROUNDING be set to 0% if TRIM MODE SELECT is set to PROPORTIONAL. Incremental
trim is not affected by this limitation.
SELF TUNE BRIDGE (P.220)
Determines the direction the motor shaft will rotate during the self-tune process by selecting the SCR
bridge. For non-regenerative (S6) drives, this is automatically set to FORWARD and cannot be
changed.
Parameter Range: FORWARD,
REVERSE
Default Setting: FORWARD
Parameter Type: Tuneable
OIM Menu Path(s): Current Minor Loop (CML) - CML Tuning - Self Tuning Setup,
Speed/Voltage Loop (SPD) - SPD Tuning - Self Tuning Setup
SELF TUNE FIELD RANGE (P.218)
Ratio of motor top speed to base speed. Typical value is 1.00, where TOP SPEED = base speed.
Applies to speed loop tuning only.
Parameter Range: 0.90 to 5.00
Default Setting: 1.00
Parameter Type: Tuneable
OIM Menu Path(s): Current Minor Loop (CML) - CML Tuning - Self Tuning Setup
Speed/Voltage Loop (SPD) - SPD Tuning - Self Tuning Setup
SELF TUNE STABILITY (P.219)
SELFTUNE STABILITY determines the self-tune stability, which sets the performance of the speed loop.
Low values increase the speed loop response. High values decrease the speed response, but result in
more stability. The typical value is 25. Applies to speed loop tuning only.
Parameter Range: 10 to 100
Default Setting: 25
Parameter Type: Tuneable
OIM Menu Path(s): Current Minor Loop (CML) - CML Tuning - Self Tuning Setup
Speed/Voltage Loop (SPD) - SPD Tuning - Self Tuning Setup