LOGO! functions

4.4 Special functions list - SF

4.4.29Analog Ramp

Short description

The Analog Ramp instruction allows the output to be changed from the current level to the selected level at a specified rate.

Symbol in LOGO!

Wiring

Description

(Q

 

Input En

A change in the status from 0 to 1 at input En

 

 

(Enable) applies the start/stop level (Offset "B" +

6HO

 

 

$ᇄ $4

 

StSp) to the output for 100 ms and starts the ramp

6W

 

 

 

operation to the selected level.

3DU

 

 

 

 

 

A change in the status from 1 to 0 immediately sets

 

 

 

the current level to Offset "B", which makes output

 

 

 

AQ equal to 0.

 

 

Input Sel

SeI = 0: Level 1 is selected

 

 

 

SeI = 1: Level 2 is selected

 

 

 

A change in status of Sel causes the current level to

 

 

 

start changing to the selected level at the specified

 

 

 

rate.

 

 

Input St

A change in the status from 0 to 1 at input St

 

 

 

(Decelerated Stop) causes the current level to

 

 

 

decrease at a constant rate until the start/stop level

 

 

 

(Offset "B" + StSp) is reached. The start/stop level is

 

 

 

maintained for 100ms and then the current level is set

 

 

 

to Offset "B", which makes output AQ equal to 0.

LOGO!

 

Manual, 04/2011, A5E03556174-01

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Siemens 6ED1050-1AA00-0BE8 manual Analog Ramp, Short description
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