Rockwell Automation GV3000/SE AC Gen. Purpose and Vector Drive Software Start-Up and Ref. Manual - Manual (Page 176)

4-90 GV3000/SE AC Drive Software Reference, Version 6.06
If U.048 = ON, a gain block scales the outer control loop output proportional to the
speed reference signal at the output of the S/Ramp block (normalized to top speed).
See figure 4.15. See Appendix H for the complete outer control loop block diagram.
This parameter limits the control the outer control loop has on the speed reference
during line start.
U.048 Outer Control Loop Proportional Trim Enable
This parameter
enables the gain
block on the output of
the outer control loop
PI block.
Parameter Range: OFF = Disable proportional trim
ON = Enable proportional trim
Default Setting: OFF
Parameter Type: Configurable
Refer also to parameters: U.040 Outer Control Loop Feedback Source
U.041 Outer Control Loop Lead/Lag Select
U.042 Outer Control Loop Lead/Lag Low Frequency
U.043 Outer Control Loop Lead/Lag Ratio
U.044 Outer Control Loop Reference Gain
U.045 Outer Control Loop Proportional Gain
U.046 Outer Control Loop Integral Gain
U.047 Outer Control Loop Trim Range Percentage
Figure 4.15 – Outer Control Loop Proportional Trim
3,
5VW
*
2&/ WULP UDQJH
8
7RSBVSG
0XOW
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2&/ 3URS 7ULP
(QDEOH 8
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6SHHG UHI 6FXUYH
EORFN RXWSXW
2II
2Q
Div
OCL output (to
speed loop block
diagram, see
Appendix H)