Reliance electric GV3000SE, Instruction Manual

Page: 172 / 198

6 - VECTOR REGULATION MODE
6 - 22 GV3000/SE 49'1329 e
U.048 Outer Control Loop Proportional Trim Enable
Parameter Range: OFF = Disable proportional trim
ON = Enable proportional trim
Default Setting: OFF
Refer to: U.040 OCL Feedback Source U.041 OCL Lead/Lag Select
U.042 OCL Lead/Lag Low Frequency U.043 OCL Lead/Lag Ratio
U.044 OCL Reference Gain U.045 OCL Proportional Gain
U.046 OCL Integral Gain U.047 OCL Trim Range Percentage
Parameter Type: Configurable (at standby only)
Description: This parameter enables the gain block on the output of the outer control loop PI
block.
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 below.
See Figure 6-1c 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.
PI
Rst
G
OCL trim range
(U.047)
Top_spd
Mult
G
OCL Prop Trim Enable
(U.048)
|x|
Speed ref S-curve block
output
Off
On
Div
OCL output
(to speed loop
block diagram)
Figure 6-2: Outer Control Loop Proportional Trim