Outer Control Loop Proportional Trim Enable - Reliance electric GV3000/SE Instruction Manual

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.042 OCL Lead/Lag Low Frequency
U.044 OCL Reference Gain
U.046 OCL Integral Gain
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.
Figure 6-2: Outer Control Loop Proportional Trim
6 - 22
6 - VECTOR REGULATION MODE
OCL trim range
(U.047)
PI G
Top_spd
Rst
GV3000/SE
U.041 OCL Lead/Lag Select
U.043 OCL Lead/Lag Ratio
U.045 OCL Proportional Gain
U.047 OCL Trim Range Percentage
OCL Prop Trim Enable
(U.048)
Div
G
Mult
|x|
Off
OCL output
(to speed loop
On
block diagram)
Speed ref S-curve block
output
49'1329 e