German YASKAWA plug YASKAWA model YASKAWA price

YASKAWA plugs are conductive devices that bridge two conductors in a circuit, allowing current or signals to flow from one conductor to another. They are widely used in various electrical circuits to connect or disconnect current or signals. This connection may be temporary and convenient for plugging and unplugging at any time, or it may be a permanent junction between electrical equipment or wires. Electronic connectors are devices for transmitting electronic signals (analog or digital signals), providing a separable interface to connect two sub-electronic systems, and are components used to complete electrical connections between circuits or electronic machines. Examples include power plugs/sockets, IC sockets, telephone line plugs, etc. They are widely used in the electronics industry. An electronic connector is an electromechanical system that provides a separable interface to connect two sub-electronic systems; simply put, components used to complete electrical connections between circuits or electronic machines are called connectors, acting as a bridge between them. Electronics can serve as electrical/electronic transmission and connection components between circuits, components, and systems, enabling stable and reliable flow of power, signals, and current, while facilitating product assembly, maintenance, and replacement.

YASKAWA plug structure

An electrical connector consists of a fixed-end electrical connector, i.e., the female contact (referred to as a socket), and a free-end electrical connector, i.e., the male contact (referred to as a plug). The socket is mounted on the powered component via its square (or round) flange (some are also soldered). The plug is generally connected to a cable, and the connection between the plug and socket is achieved through a coupling nut. An electrical connector comprises three basic units: the housing, the insulator, and the contacts. 1) Housing: The housing of an electrical connector refers to the outer shell of the plug and socket, the coupling nut, and the rear accessories. The shell protects internal components such as the insulator and contacts (collective term for pins and sockets) from damage. Positioning keyways on the top ensure proper alignment of the plug and socket. The coupling nut is used for connecting and disconnecting the plug and socket. Rear accessories protect the termination point between the wire and the contact from damage and are used to secure the cable. The housing also provides a certain degree of electromagnetic shielding. Housings are generally machined from aluminum alloy (machining, cold extrusion, die casting). Steel housings are mostly used for glass-sealed and high-temperature-resistant electrical connectors. 2) Insulator: Composed of pin-mounting insulators, socket-mounting insulators, interface seals, wire seals, etc. It maintains pins and sockets in their designated positions and provides electrical insulation between individual contacts and between the contacts and the housing. Sealing measures are achieved through the insulator combined with interface seals and wire seals to improve the environmental resistance of the electrical connector. To adapt to high-temperature, low-temperature, and flame-retardant requirements while ensuring stable and reliable geometric dimensions of the parts, insulators are mostly molded from thermosetting plastics. Interface seals and wire seals are formed by molding silicone rubber, etc. 3) Contacts: Contacts include male and female contacts, sometimes referred to as pins and sockets. Connection methods include soldering, crimping, press-fit, and wire wrapping, used to achieve circuit connections. Pins and sockets are critical components of electrical connectors, directly affecting their reliability. Pins and sockets are mostly machined from elastic copper alloys with good conductivity, with silver or gold plating on the surface to achieve low contact resistance and corrosion resistance. Sockets generally include split-type sockets, wire-spring sockets, crown-spring sockets, and stamped sockets. Structural features include: environmental resistance, bayonet (quick) connection, multiple keyways (prevention of incorrect mating), crimped connection between contacts and wires (single-wire removal facilitates fault handling). The housing plus a shielding ring ensures 360° electromagnetic interference shielding capability.

YASKAWA plug classification

Industrial bus networks can be categorized into three types: 485 networks, HART networks, and FieldBus fieldbus networks. 485 network: RS485/MODBUS is a popular industrial networking method, characterized by simple and convenient implementation, and there are many instruments supporting RS485. Instrument manufacturers have also turned to support RS485/MODBUS for the simple reason that RS485 conversion interfaces are not only inexpensive but also diverse. At least in the low-end market, RS485/MODBUS will remain the primary industrial networking method. HART network: HART is a transitional bus standard proposed by Emerson, mainly characterized by superimposing digital signals on 4-20 mA current signals. However, this protocol is not truly open; one must join its foundation to obtain the protocol, which requires a certain fee. HART technology is mainly monopolized by several large foreign companies. In recent years, domestic companies have also been working on it, but have not yet reached the level of foreign companies. Many smart instruments come with [HART round card] and support HART communication functions. However, from a domestic perspective, this functionality has not been truly utilized for device networking and monitoring; at most, handheld configurators are used for parameter setting. In the long run, due to reasons such as low HART communication speed and difficult networking, the application of HART instruments will show a downward trend. FieldBus fieldbus network: Fieldbus is one of the hot technologies in the automation field today, hailed as the computer LAN of the automation field. Its emergence marks the beginning of a new era in automation control technology. Fieldbus is a digital, serial, multi-station communication network connecting field instruments with control devices in the control room. Its key hallmark is the ability to support bidirectional, multi-node, bus-style fully digital communication. Fieldbus technology has become a hotspot in the development of international automation and instrumentation. Its emergence has brought revolutionary changes to traditional control system structures, further advancing automated control systems towards "intelligence, digitization, informatization, networking, and decentralization," forming a new type of networked communication fully distributed control system—Fieldbus Control System FCS (Fieldbus Control System). However, fieldbus has not yet formed a truly unified standard. Multiple standards such as ProfiBus, CANbus, and CC-Link coexist, each with its own niche. When they will unify is uncertain. There are relatively few types of instruments supporting fieldbus, limited choices, higher prices, and smaller usage volumes.

YASKAWA plug operation

A bus operation process completes the transmission of information between two modules. The master module initiates the operation process, and the other is the slave module. At any given moment, only one master module can occupy the bus. Bus operation steps: The master module requests bus control rights, and the bus controller makes the arbitration. Error checking during data transmission: After obtaining bus control rights, the master module addresses the slave module, and data transmission occurs after confirmation by the slave module. Bus timing protocol: Timing protocols ensure synchronized operations between both parties in data transmission and correct transmission. There are three types of timing protocols: Synchronous bus timing: All modules on the bus share the same clock pulse for controlling the operation process. All actions of each module occur at the start of the clock cycle, and most actions are completed within one clock cycle. Asynchronous bus timing: The occurrence of an operation is determined by specific signals from the source or destination module. The occurrence of an event on the bus depends on the occurrence of the previous event, with both parties providing handshake signals to each other.

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