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Figure a.7 speed loop, Firmware block diagrams a–7 – Rockwell Automation 1397 DC Drive Firmware 2.xx User Manual

Page 225

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Firmware Block Diagrams

A–7

Publication 1397-5.0 — June, 2001

Figure A.7
Speed Loop

Spd Loop Fdbk
(P. 022)

+

WLG

ADAPTOR 1–6

*ON

Spd Lp Lag Type
(P. 076)

OFF

LAG

Max Motor Speed
(P. 041)

LEAD/LAG

FREQUENCY IN

KP

Spd Loop Output
(P. 024)

*BYPASS

Pos Current Lim
(P. 067)

ANALOG IN 3

*REGISTER

From I/O
Exp. Inputs
Block Diagram

SOFTWARE SCALING

Pos Cur
Lim Src
(P. 069)

Spd Loop Ref
(P. 025)

From Speed
Reference
Mode Select
Block Diagram

ANALOG IN 4

FREQUENCY IN

ADAPTOR 1–6

To CML
Reference
Block Diagram

HI

To CML
Reference
Block Diagram

PI

WLD LO

Neg Cur
Lim Src
(P. 070)

ANALOG IN 3

*REGISTER

Neg Cur Lim
(P. 068)

ANALOG IN 4

To CML
Reference
Block Diagram

From I/O
Exp Inputs
Block Diagram

From SCANport

LAG/LEAD

LEAD/LAG
or
LAG/LEAD

(SPD
LEAD/LAG
FREQ)

(SPD
LEAD/LAG
RATIO)

+

Feedback Type
(P. 039)

PULSE TACH

DC TACH

*ARM VOLT

AC TACH

Arm Voltage (P. 004)

From SCANport

A/D

SOFTWARE
SCALING

Armature
Voltage
Internal

(CUR LOOP FDBK)
8 sample average

IR Compensation (P. 066)

IR Comp TP (P.179)

SOFTWARE SCALING

A/D

F/D

SOFTWARE SCALING

Encoder Quad
(P. 049)

Encoder
PPR
(P. 048)

Encoder Fdbk
(P. 189)

Anlg Tach
Zero
(P. 058)

Anlg Tach
Gain
(P. 057)

Anlg Tach
V/1000
(P. 047)

ANLG TACH
(+ hi) CTB–21
(+ lo) CTB–22
( – ) CTB

Pulse
Tachometer
(From optional
pulse tach kit)

*Default Selection

Spd Lag Freq
(P. 075)

Spd Loop Lag Out
(P. 023)

Spd Loop Kp
(P. 078)

Spd Lp
Lead Freq
(P. 077)

Spd Loop Error
(P. 021)

(ANLG TACH FDBK)

Spd Lead/Lag Type
(P. 074)