---
title: AN-TMR-010 - Falling Edge One Shot with Retrigger
description: Understanding and Selecting Timers
---

[Skip to content](https://knowledge.factorymation.com/solution/25405#main-content)

English - United States

Show submenu for translations

[![FM-Logo\_2-1](https://knowledge.factorymation.com/hubfs/FM-Logo_2-1.svg)](https://www.factorymation.com/)

Open main navigation

Close main navigation

- English - United States
  
  Show submenu for translations
- [Contact Us](https://www.factorymation.com/contact-us)

[Contact Us](https://www.factorymation.com/contact-us)

 Application Notes, FAQ's and Product Guides

- There are no suggestions because the search field is empty.

1. [Application Notes](https://knowledge.factorymation.com/?hsLang=en-us)
2. [Timers](https://knowledge.factorymation.com/timers?hsLang=en-us)

# AN-TMR-010 - Falling Edge One Shot with Retrigger

## Timing operation of the Falling Edge with Retrigger Timer function.

AN-TMR-010

10\. Falling Edge with Retrigger Timer Function:

Power is applied to the timer during operation. When the signal input transitions from an on to off state, the timeout begins. The output turns off at the completion of the timeout. This process is repeated on each falling edge of the signal input. If a falling edge of the signal occurs before the timeout, the output turns on and remains on until a timeout completion.

 

<iframe height="315" src="https://www.youtube.com/embed/EKXtsb3cYdk?si=M_NrWv5WAQtBPTdR" style="position: absolute; top: 0px; left: 0px; width: 100%; height: 100%; border: none;" width="560" allowfullscreen data-mce-src="https://www.youtube.com/embed/EKXtsb3cYdk?si=M_NrWv5WAQtBPTdR" data-mce-style="position: absolute; top: 0px; left: 0px; width: 100%; height: 100%; border: none;" data-mce-fragment="1"></iframe>

- [AC Drives (VFD)](https://knowledge.factorymation.com/ac-drives-vfd?hsLang=en-us#main-content)

    - [FMX TD200 Series](https://knowledge.factorymation.com/ac-drives-vfd?hsLang=en-us#fmx-td200-series)
    - [FMX TD400 Series](https://knowledge.factorymation.com/ac-drives-vfd?hsLang=en-us#fmx-td400-series)
    - [TECO FM50 Series](https://knowledge.factorymation.com/ac-drives-vfd?hsLang=en-us#teco-fm50-series)
    - [TECO CV7300 Series](https://knowledge.factorymation.com/ac-drives-vfd?hsLang=en-us#teco-cv7300-series)
- [Circuit Protection](https://knowledge.factorymation.com/circuit-protection?hsLang=en-us#main-content)

    - [Miniature Circuit Breakers](https://knowledge.factorymation.com/circuit-protection?hsLang=en-us#miniature-circuit-breakers)
    - [Fuses and Fuse Holders](https://knowledge.factorymation.com/circuit-protection?hsLang=en-us#fuses-and-fuse-holders)
    - [Surge Protection (SPD)](https://knowledge.factorymation.com/circuit-protection?hsLang=en-us#surge-protection-spd)
- [Digital Panel Meters](https://knowledge.factorymation.com/digital-panel-meters?hsLang=en-us)
- [Enclosures](https://knowledge.factorymation.com/enclosures?hsLang=en-us)
- [Fuses and Fuse Holders](https://knowledge.factorymation.com/fuses-and-fuse-holders?hsLang=en-us)
- [General](https://knowledge.factorymation.com/general?hsLang=en-us)
- [HMI Touch Panels](https://knowledge.factorymation.com/hmi-touch-panels?hsLang=en-us)
- [Miniature Circuit Breakers](https://knowledge.factorymation.com/miniature-circuit-breakers?hsLang=en-us)
- [Motor Controls](https://knowledge.factorymation.com/motor-controls?hsLang=en-us)
- [Programmable Controllers](https://knowledge.factorymation.com/programmable-controllers?hsLang=en-us#main-content)

    - [Programmable Logic Controller - LS Electric XGB](https://knowledge.factorymation.com/programmable-controllers?hsLang=en-us#programmable-logic-controller-ls-electric-xgb)
    - [Programmable Logic Relay - Teco](https://knowledge.factorymation.com/programmable-controllers?hsLang=en-us#programmable-logic-relay-teco)
- [Sensors](https://knowledge.factorymation.com/sensors?hsLang=en-us)
- [Signal Lights](https://knowledge.factorymation.com/signal-lights?hsLang=en-us)
- [Temperature Control](https://knowledge.factorymation.com/temperature-control?hsLang=en-us#main-content)

    - [DTB Temperature Control](https://knowledge.factorymation.com/temperature-control?hsLang=en-us#dtb-temperature-control)
    - [DTC Temperature Control](https://knowledge.factorymation.com/temperature-control?hsLang=en-us#dtc-temperature-control)
- [Timers](https://knowledge.factorymation.com/timers?hsLang=en-us)
- [Transformers - FMX & Micron](https://knowledge.factorymation.com/transformers-fmx-micron?hsLang=en-us)
- [Wiring Solutions](https://knowledge.factorymation.com/wiring-solutions?hsLang=en-us)

[![](https://knowledge.factorymation.com/hs-fs/hubfs/FM-FactoryMation_COLOR.png?width=3960&height=1080&name=FM-FactoryMation_COLOR.png)](https://knowledge.factorymation.com/?hsLang=en-us)

Copyright © 2025, www.factorymation.com