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Speed control – r egulator, Figure 43 - speed control - regulator (fv), Flux vector – Rockwell Automation 21G PowerFlex 750-Series AC Drives Programming Manual User Manual

Page 409

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Rockwell Automation Publication 750-PM001J-EN-P - October 2014

409

PowerFlex 755 Control Block Diagrams

Appendix A

Figure 43 - Speed Control - Regulator (FV)

Sp

eed

R

eg

BW

Sp

d Loo

p Damp

in

g

Total Inertia

63

6

65

3

76

set param 636/648

= 0

to manually adjust

param 645/649

& 647/650

*

63

8

63

9

642

643

65

5

656

659

658

620

Dr

oop

597

640

131

641

654

660

Ser

voLck

ks

s

P Gain

kp

Limit

65

2

68

5

Sp

d Reg Pos Lmt

Spd Reg Neg

L

m

t

Feed

Fwd

nff

SReg FB FltrGain

SReg FB Fltr

BW

Filtered SpdFdbk

Active Vel

Fdbk

Fin

al Sp

eed

Ref

Speed Error

SpdReg

AntiBckup

Servo Lock Gain

PTP PsnRefStatus

( PTP Int Hold)

Spd Options Ctrl

(Sp

d

Re

gI

nt

Re

s)

(SpdRegIntHld)

(Jog No

Integ)

Selected Trq Ref

Dr

oop

RPM

at FLA

SReg Out

FltrGain

SReg Out

FltrBW

SReg Output

To Torq Ctrl

[23B2]

Spd Reg

Int Out

1

2

3

4

5

6

B

A

D

C

F

E

H

G

I

Fr

om

Fdbk

[3

F2]

Lea

d Lag

(k

n * s)+ wn

s + wn

L

ead

L

ag

(kn * s

)+ w

n

s +

wn

+

-

+

+

-

+

+

+

+

-

2

63

5

3

4

I Gain

ki

s

94

5

At Limit

Status

P

reset

Bumpless

H

old / Re

set

Actv SpTqPs Mode

637

SReg FB Fltr Sel

657

SReg OutFltr Sel

SReg Tr

q Pr

es

et

64

4

Sp

d Er

r Filt BW

*

2

nd

Or

der

LPass

Fil

ter

635

Spd O

ptions Cntl

(SpdErrFilter)

1

st

Or

der

LPass

Filter

0,2

71

0

704

InAdp LdObs Mode

InertAdapt

FltrBW*

05

Alt Speed Reg BW

648

Set=1 St

age,

C

lear=2 Stag

e

65

1

AltSpdErr FltrBW

*

645

Spee

d Re

g Kp

*

649

Alt Spe

ed Reg Kp*

945

4

At Limit Status

(S

pd Reg Lmt

)

720

647

Speed Reg Ki*

650

Alt Speed Reg Ki*

6

Speed Se

nsor

Type

Senso

rless

Speed Control –

R

egulator

Flux Vector

31

3

From

Sp

d Ref

[9C2]

[2

3E

2]

[23D5]

***INTERNAL CONDITION O

N

LY***

Limit

+10

%

-1

0%

PF

755 Rev

_10.a

Pag

e 10