Chapter 3 functional description 3-31 – Rockwell Automation 1395 DC Drive, 800-1250 Hp, FRN 5.XX-9.30 User Manual

Page 64

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Chapter 3
Functional Description

3-31

10

CURRENT PI CONTROL

AUTO TUNE
GAIN

DISCONTINUOUS

CURRENT

ADAPTION

FLD x 3

13

FIELD PI CONTROL

8

118

FIELD FLUX

LINEARIZATION

685 FLD I

@

1.0 FLUX

ARM CURRENT

FIRE ANG

2048 = 90 DEG.

114

FIELD

IREF

SCALING

AMPS

+

+

H

DISCONTINUOUS

AUTO TUNE
GAIN

AMP

AMP

14

FEEDBACK CONTROL

FIELD I FDBK

+

1536

RATED FIELD

BRIDGE FLA

A

FCT

%

Rate Fld Mtr Cur

Fld Current Fdbk

ARMATURE

CURRENT

PI CONTROL

PI

735 KP/4096

736 KI/4096

734

ARM CUR I

PI OUT

2048 = 1PU VOLTS

113

V

m

E

F

T

ARMATURE

SCR

GATE

CONTROL

ARMATURE

BRIDGE

To Sheet 2

H

684 FLD I

@

7/8 FLUX

683 FLD I

@

6/8 FLUX

682 FLD I

@

5/8 FLUX

681 FLD I

@

4/8 FLUX

680 FLD I

@

3/8 FLUX

679 FLD I

@

2/8 FLUX

678 FLD I

@

1/8 FLUX

677 FLD I

@

0/8 FLUX

FLUX COMMAND 115

FLD CURRENT

REF

117

BRDGI x 8

612

AMP

616

Rate Fld Brdg I

+

FIELD

CURRENT

PI CONTROL

PI

737 KP/4096

738 KI/4096

FIELD

SCR

GATE

CONTROL

FIELD

BRIDGE

4096 = IPU FIELD AMPS

D

FIELD

CURRENT

CT

A

ACT1 & ACT2

D

ARMATURE

CURRENT

CT

D

A

D

AC LINE

VOLTAGE

SENSE

E

A

D

ARMATURE

VOLTAGE

SENSE

F

ARM I FDBK

+

1024 RATED FIELD

BRIDGE FLA

AC VOLTAGE
FDBK

ARM VOLTAGE
FDBK

BRIDGE FLA

FIELD FLA

X

3

AMP

AMP

RATED FLD BRDG I

616

RATED FLD MTR CUR

612

4

AMP

Arm Current Fdbk

BRIDGE FLA

ARM FLA

X

AMP

AMP

RATED ARM BRDG I

615

611

MOTOR ARM FLA

4096 = FIELD FLA

4096 = ARM FLA

112

4096

RATED V

VLT

617

K AC

AC LINE

SCALING

1024

RATED AC LINE

VLT

AC LINE VOLTAGE

116

740

K AC VOLTS

4096

RATED V

VLT

610

K ARM

ARM VOLT

SCALING

512

RATED MOTOR VOLT

739

K ARM VOLTS

ARM Voltage Fdbk

VLT

4096 = RATED V

105

m

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