Figure a.8 current minor loop reference, Firmware block diagrams a–8 – Rockwell Automation 1397 DC Drive Firmware 2.xx User Manual

Page 226

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Firmware Block Diagrams

A–8

Publication 1397-5.0 — June, 2001

Figure A.8
Current Minor Loop Reference

Cur
Loop
Ref
(P. 008)

LIMIT

HI

LO

Software
Scaling

* Default Selection

Cur Loop Ratelim
(P. 064)

To Current
Minor Loop
Block Diagram

Inertia
Comp
Src
(P. 102)

ACC/DEC

Positive current limit from
Speed Loop Block Diagram

*REGISTER

INTERNAL

ANLG IN 3

ANLG IN 4

RATELIM

J15
Reg
Type
(P. 182)

CURRENT/TORQUE

+

+

*SPEED/VOLTAGE

From Speed/Trim
Reference Select
Block Diagram

From
Speed Loop
Block Diagram

Torque Reference
(P. 031)

Spd Loop Output
(P. 024)

FREQUENCY IN

ADAPTOR 1–6

Maximum Current
(P. 040)

Normal Inertia
(P. 109)

Negative current limit from
Speed Loop Block Diagram

S–curve rate
output from
Speed Ref Ramp
Block Diagram

Inertia Comp Ref

(P. 122)

From I/O
Exp. Inputs
Block Diagram

From SCANport

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