Figure a.4 speed reference ramp, Firmware block diagrams a–4 – Rockwell Automation 1397 DC Drive Firmware 2.xx User Manual

Page 222

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Firmware Block Diagrams

A–4

Publication 1397-5.0 — June, 2001

Figure A.4
Speed Reference Ramp

SMOOTHING

DEC

INCREMENTAL

MAX

NOTE 1: “REF RAMP BYPASS” will be automatically
turned OFF during a Ramp Stop Command. This is to
prevent a Current Limit stop from occuring during a Ramp
Stop command.

1

Ref Ramp Bypass

(P. 100)

+

(Spd Ramp Output)
(P. 028)

Min Speed
Bypass
(P. 099)

*OFF

Spd Ramp
IN TP
(P. 027)

MIN

Trim Output
(P. 030)

Forward/Reverse
Command

TRIM
DRAW
PERCENT

*NO TRIM

RATE

From Speed
Reference
Source Select
Block Diagram

RAMP STOP
COMMAND

OFF

DECEL TIME

1 + DRAW PERCENT

Trim Mode
Type
(P 117)

From Speed
Reference
Source Select
Block Diagram

LIMIT

*NO TRIM

SCURVE

INCREMENTAL

To
A6

SPD Src Output
(P. 026)

Trim Mode
Type
(P. 117)

PROPORTIONAL

ON

Decel Time
(P. 038)

Reverse
Disable
(P. 110)

Draw Percent Out
(P. 009)

0

S Curve Rounding
(P. 111)

EN

ON

Min Process
Speed
(P. 043)

PROPORTIONAL

INCREMENTAL

*NO TRIM

ACCEL TIME

1 + DRAW PERCENT

Accel Time
(P. 037)

PROPORTIONAL

Trim Mode
Type
(P 117)

ACC

To
A8

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