Speed Regulator Gain Profile Block (Speed Gain Profile) - GE AV-300i User Manual

Spd 0 logic src
Spd 0 ref src
Spd 0 logic cfg
Spd 0 enable
Int spd 0 ref
Spd 0 P gain
Spd 0 I gain
Spd 0 speed thr
Spd 0 spd delay
Spd 0 ref thr
Spd 0 ref delay
Spd 0 logic mon
Spd is zero
Ref is zero
Spd is zero dly
Ref is zero dly
InUse SpdP gain%
InUse SpdI gain%

1.8.7 Speed Regulator Gain Profile Block (Speed Gain Profile)

The Block function is active only in a Sensorless and Field Oriented mode.
The Speed Gain Profile function, SGP, allows different gains of the speed Regulator according to the variations
in the speed value or another user defined signal (ex. load variations, diameter, PID output, etc ).
The Block adapts the gains of the speed regulator according to the signal connected to the SGP ref src source
(standard connected to Int SGP ref, Block internal value in count) and to the Profile of the set gains.
The Profile of the set gain is stated by:
. three levels of speed Proportional and Integral gain, SpdPx gain % and Spd Ix gain %.
· two thresholds (threshold - thr), SPG tran21 h thr and SPG tran32 l thr, which define the point of the
transitions between the three gain levels (see the figure)
· two transition Bands, SGP tran21 band and SGP tran32 band, that define the slope, by straight lines,
connecting the gain levels.
Refer to the Speed Gain Profile block diagram. It is possible to set the value of the internal reference, Int SGP
ref, and its specific basic value, SGP base value.
SPG function is defaulted for use with Ramp reference, Speed reference or Norm speed. These variable's
scalings are 16384 counts, corresponding to the drive parameter [Full scale speed]. This is the reason why SGP
base value parameter is defaulted to 16384 counts.
SGP base value parameter can also be changed if gain modification is driven by some variable that has full scale
different then 16384 counts. For example 4096 counts, that comes from bus or other variables present in the
system. It is also possible to write an independent variable value to Int SGP ref parameter.
AV-300i Version 2 User's Guide
—————— Function Description ——————
Reference selection to determine ref= 0. It can be
selected among Ramp, Speed, Null, Int spd 0 ref
Adaptive enable with a speed 0
Internal spd ref variable
P gain with a speed 0
I gain with a speed 0
Speed 0 threshold
Delay on the speed 0
Threshold on the Reference 0
Delay on the Reference 0
Speed 0 state
Reference 0 state
Delayed speed 0 state
Delayed reference 0 state
Gains in use
Gains in use
Ch.1
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