Como Funciona un Temporizador On Delay y OFF Delay / Explicado con Animaciones

Summary

This video script offers a detailed explanation of timers, also known as 'temporizadores', and how to connect them for applications such as lighting or electric motor control. It distinguishes between 'TON' (time-on-delay) and 'TOF' (time-off-delay) timers, providing examples of their operation. It also covers a modular timer from Schneider Electric, explaining its adjustment dials and connection schematics. The script includes practical examples of setting up circuits with these timers, emphasizing their utility beyond simple on/off functions, such as in motor control, and hints at further resources for learning about multifunctional timers and their applications.

Takeaways

• 🕒 A timer is a device that can adjust the connection or disconnection time of an electrical circuit after a command is given.
• 🔌 Timers are widely used in industry and automation and can be classified as electrical, pneumatic, and electronic.
• ⏲️ Timers can operate with delay in connection or disconnection, known as 'TON' for connection delay and 'TOF' for disconnection delay.
• 🔄 TON (Timer ON delay) allows the circuit to connect after a set time once the activation signal is generated.
• 🔄 TOF (Timer OFF delay) allows the circuit to disconnect after a set time once the deactivation signal is generated.
• 📡 TON and TOF timers can be identified by their symbols, with TON typically shown in a diagram with a coil and a switch that closes after the delay.
• 📡 TOF timers are represented with a coil and a switch that opens after the delay, returning to its default state.
• 🛠️ The script provides an example of a modular timer relay from Schneider Electric, which is a TON timer with two adjustment knobs for timing range and configuration.
• 🔧 The example also explains how to connect a TON timer in a simple circuit using a thermal magnetic switch and two light bulbs as indicators.
• 🔌 The connection for the TON timer involves terminals for coil power, input, and output, with specific terminals for normally open and closed contacts.
• 🔄 The script also discusses a TOF timer, explaining its independent coil power and how it functions with an immediate switch for the light bulbs and a delayed switch for the timer.
• 🔗 The video script concludes with a mention of multifunction timers and a link to further videos on controlling electric motors with timers.

Q & A

What is a timer or 'timer' in the context of electrical circuits?

A timer, also known as a 'timer', is a device that allows you to set the duration of connection or disconnection of an electrical circuit after a command is given. It is widely used in industry and automation.

How are timers classified according to the script?

Timers are classified into electrical, pneumatic, and electronic types. They can operate with delay in connection or disconnection.

What is the difference between a timer with delay in connection (TON) and a timer with delay in disconnection (TOF)?

A timer with delay in connection (TON) connects the circuit after a certain time has passed since the activation signal. A timer with delay in disconnection (TOF) disconnects the circuit and returns its contacts to the default state after a certain time has passed since the deactivation signal.

How does a TON timer operate when the activation signal is generated?

When the activation signal is generated, a TON timer starts timing the delay period. Once the set delay time is reached, the auxiliary contact changes state, allowing current to pass and energize the indicator.

How does a TOF timer operate when the deactivation signal is generated?

When the deactivation signal is generated, a TOF timer starts timing the delay period for disconnection. Once the set delay time is reached, the auxiliary contact changes state, turning off the indicator.

What is a modular timer relay and what is its purpose?

A modular timer relay is a device that can be adjusted for both connection and disconnection delays in electrical circuits. It is used for timing control in various applications such as lighting or motor control.

What are the two adjustment knobs on a modular timer relay for?

The two adjustment knobs on a modular timer relay are for setting the timing range and configuring the timing. The first knob adjusts the delay time from one second to 300 hours, and the second knob configures the percentage of the delay time according to the range selected by the first knob.

What is the purpose of the diagnostic button on the modular timer relay?

The diagnostic button, usually green, is used for troubleshooting and diagnosing the operation of the timer relay.

How is the connection scheme of a modular timer relay explained in the script?

The script explains that the modular timer relay has a complex connection scheme, but the basic connection involves terminals for coil power, input, and output. The script also mentions a reset terminal, which is not used in the basic connection example provided.

Can you provide an example of a practical application of a TON timer from the script?

An example given in the script is using a TON timer with a thermal magnetic switch and two light bulbs as indicators. The TON timer is set to a 10-second delay, and when the switch is closed, the timer starts the delay countdown, and after the delay, the light bulbs change state accordingly.

What is the difference in the connection scheme when using a TOF timer compared to a TON timer?

The connection scheme for a TOF timer is similar to that of a TON timer, with the main difference being that the coil power for the TOF timer is independent of the power supply for the light bulbs or indicators.

Why can't a timer be connected directly to an electric motor for control?

A timer is a control device and is not designed to handle the power or force required to control an electric motor directly. Instead, a contactor must be added to the circuit to control the motor.

What additional information is provided at the end of the script?

At the end of the script, the author mentions that there will be links to further videos explaining how to use these timers for controlling electric motors and also how to connect circuits using multifunction timers.