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Time Delay Relays: FS152 Application Field and Working Principle

The time delay relay FS152 has become a popular and widely used control component in industrial production since its launch by Fujitsu. This relay has a wide range of applications in various fields where it is used to control the timing and flow of signals to provide timely and accurate reaction to events. Below, an overview of the applications and working principle of the FS152 time delay relay is provided.

Applications of the FS152 Time Delay Relay

The FS152 time delay relay is used in industrial production processes, including motor control, power shutoffs, automated tasks, and alert systems. Specifically, the FS152 can be used to time the delay of an automated process, such as switch cycles or machine operation. It is also commonly used as part of a timer to set motors to turn on and off. The FS152 is also employed in security applications such as door locks and alarms. Additionally, this time delay relay is employed for timing and control of air conditioner systems, computer systems, and car alarms. Its versatility makes it ideal for a wide variety of industries, from automotive production to home automation.

Working Principle of the FS152 Time Delay Relay

The FS152 time delay relay is an electromechanical device that switches various circuits on or off based on commands programmed within its timing circuit. The functioning of the FS152 is based upon a principle called “creaming”. The creaming principle involves two components - the sense coils and the relays - wired in parallel. The coils generate an electromagnetic field when energized, and when the field interacts with the magnetic coils around the relay pin, an “on” signal is sent and a circuit is established and current flows.

The triggering of action by the FS152 is based on both contact closures and non-contact conditions. Contact closure occurs when a target switch or an operator makes a physical contact and closes the circuit, thereby energizing the coil. Non-contact closure occurs when the target switch or operator senses an incorrect condition and enables the sense coil to switch the current off.

A timer socket is provided in the FS152, which allows the user to program a wait period before the timing circuit is triggered. The wait period can be set for a fixed amount of time, or it can be adjustable for different applications. For instance, if the wait period is set to a shorter length of time, the relay will switch on quicker; conversely, if the wait period is longer, the circuit will take longer to switch on. This feature enables the FS152 to adapt to different applications and environmental conditions.

The FS152 is equipped with LED indicators to display the current status of the relay. For instance, a green LED will blink when the relay is switching off, and a red LED will blink when the relay is switching on. This allows the user to monitor the relay’s operations without needing to access the circuit board.

Conclusion

The FS152 time delay relay has become a widely used control component in industrial production for its versatility and ability to operate in a range of applications. Its working principle is based on the creaming principle, which involves two components - the sense coils and the relays - wired in parallel. The wait period before the timing circuit is triggered can be adjusted for different applications with the timer socket provided. Finally, LEDs are provided for monitoring the relay’s operations. The FS152 is an ideal device for a wide range of applications in industrial production and beyond.

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