Edge triggered wiping relay

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Short description

An input pulse generates a preset number of output pulses with a defined pulse/pause ratio (retriggerable), after a configured delay time has expired.

 

Connection

Description

Input Trg

You trigger the times for the Edge-triggered wiping relay with a signal at input Trg (Trigger).

Input R

The output and the current time Ta are reset to 0 with a signal at input R.

Parameter

TH, TL: The pulse width TH and the interpulse width TL are adjustable.

N  determines the number of pulse/pause cycles TL / TH:

 Value range: 1...9.

Retentivity set (on) = the status is retentive in memory.

Output Q

Output Q is set when the time TL has expired and is reset when TH has expired.

 

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0BA2, 0BA3:

Only the parameter TH exists. TH represents the off-delay time for the output.

Input R is not available

 

Parameters TH and TL

The pulse width TH and the interpulse width TL can be provided by the actual value of another already-programmed function:

You select the required function by the block number.

Timing diagram

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TL = 0; N = 1

Description of the function

With the change at input Trg to 1, the time TL (time low) is triggered. After the time TL has expired, output Q is set to 1 for the duration of the time TH (time high).

If input Trg is retriggered prior to the expiration of the preset time (TL + TH), the time Ta is reset and the pulse/pause period is restarted.

 

Overview