Several common wiring methods of relay control system

Relay control system is a common electrical control system used to control the switching, signal transmission and protection of various electrical equipment. It realizes the circuit switching and control function through the relay, and can convert the low voltage control signal into the high voltage and high current control signal, to realize the control of the electrical equipment.

There are a variety of wiring methods for relay control systems. The following describes some common wiring methods.

1. Direct wiring:

This method is suitable for situations where the control voltage and the controlled voltage are the same. The control signal is input through the control end of the DS1233Z-5 relay. When the control signal is effective, the contact of the relay is closed, and the power supply voltage is directly output to the controlled device to realize the control of the device.

2. Ac connection mode:

This method is suitable for controlling AC equipment. This is usually done using AC relays. Among them, the control end of the AC relay is connected to the control signal, and the contact of the relay is connected to the power line and the load line of the controlled device through additional wiring. When the control signal is effective, the contact of the relay is closed, and the power supply voltage is transmitted to the controlled device through the contact to realize the control of the device.

3. DC connection mode:

This method is suitable for controlling direct current equipment. This is usually done using DC relays. The control end of the DC relay is connected to the control signal, and the contact of the relay is connected to the positive and negative terminals of the controlled device through additional wiring. When the control signal is effective, the contact of the relay is closed, and the power supply voltage is transmitted to the controlled device through the contact to realize the control of the device.

4. Series connection:

This method is suitable for situations where multiple relays control a device at the same time. The control end of multiple relays is connected in series, and the control signal is input through the relay control end in series. When the control signal of any relay is effective, the contact of all relays is closed, and the power supply voltage is output to the controlled device to realize the control of the device.

5. Parallel connection mode:

This method is suitable for situations where multiple relays control multiple devices at the same time. The control ends of multiple relays are connected in parallel, and the control signal is input through the control end of the relay in parallel. When the control signal of any relay is effective, the contact of the relay is closed, and the power supply voltage is output to the controlled device to realize the control of the device.

The wiring mode of the relay control system is not only affected by the control signal and the voltage type of the controlled device, but also by the specific application scenario and requirements. In practical applications, it is necessary to select the appropriate wiring mode according to the specific situation, and follow the relevant electrical safety codes and standards for design and installation.