How many types of time relays are there? How to connect the wires?

An electric time controller is an electromagnetic valve that delays the mechanical system driven by a motor. Its main components include motors, reduction mechanisms, timing mechanisms, and contacts. If you want to have a comprehensive understanding of time controllers, this article will summarize the relevant knowledge and bring you a deeper understanding and understanding.

1、 Type of time controller

1. Electric time controller

Electric time controller is an electromagnetic valve that achieves time delay based on the mechanical system driven by a motor. Its main components include motors, reduction mechanisms, timing mechanisms, and contacts. When the circuit is energized, the motor begins to rotate, driving the timing mechanism to record the time. When the timing time reaches the set time, the contact acts to operate the circuit switch.

There are two main wiring methods for electric time controllers: one is series connection, where the time controller is placed in the power load circuit and disconnected or connected to the load circuit with time delay; Another method is parallel connection, where the time controller is placed in the power control circuit and the control circuit is opened or closed with time delay.

2. Electronic time controller

An electronic time controller is an electromagnetic valve that delays time based on electronic components. Its main components include timing chips, contacts, etc. When the circuit is powered on, the timing chip starts timing. When the timing time reaches the set time, the contact acts to operate the circuit switch.

The wiring method of electronic time controllers is similar to that of electric time controllers, and can also be connected in series or parallel.

3. Thermal relay

A thermal relay is an electromagnetic valve that delays time based on the principle of thermal deformation. Its main components include thermal sensors, mechanical systems, and contact points. When the circuit is powered on, the thermistor gradually heats up. When the heating time reaches the set time, the mechanical system heats up and deforms, operating the circuit switch.

2、 Wiring method of time controller

Series connection method

Series connection is the process of placing a time controller into the load circuit of a power supply and delaying the disconnection or connection of the load circuit over time. The actual wiring method is as follows:

Firstly, connect the power level to the normally open contact of the time controller and connect the power level to one end of the load power supply. Then, the normally closed point of the time controller is received to the other end of the load power supply. Finally, receive the other end of the load power supply to the power level.

Parallel connection method

The method of parallel wiring is to place the time controller in the control circuit of the power supply, so that the control circuit can be turned on or off over time. The actual wiring method is as follows:

Firstly, the positive stage of the power supply is received at the normally open contact of the time controller, and the negative stage of the power supply is received at the common end of the time controller. Then, the signal source of the control circuit is received to the control end of the time controller. Finally, the negative terminal of the control circuit is received to the common terminal of the time controller.

It should be noted that different types of time controllers are wired differently. Suitable wiring methods should be selected based on actual usage scenarios and control regulations, and wiring should be carried out according to the wiring diagram in the manual. In addition, when wiring, attention should also be paid to circuit safety to ensure normal operation of the circuit and prevent circuit failures and safety accidents.

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