ABB NKAS01-8 Analog Module Termination Cable

ABB NKAS01-8 Analog Module Termination Cable

Basic structure

Conductor section:

The conductor of the ABB NKAS01 - 8 Analog Module Termination Cable is usually made of high purity copper. This is due to the good electrical conductivity of copper, which reduces resistance losses during signal transmission and ensures the accurate transmission of analog signals. For example, when transmitting a 4 - 20mA current signal, a low resistance copper conductor will minimize signal attenuation.

Insulation:

The insulation layer is usually made of high quality polyvinyl chloride (PVC) or polytetrafluoroethylene (PTFE), which offers good insulation and mechanical strength at a relatively reasonable price, while PTFE has better resistance to high temperatures and chemicals, and is suitable for use in harsher industrial environments. This insulating material can effectively prevent short-circuiting between different conductors, guaranteeing signal independence and accuracy.

Shielded construction:

The cable may be equipped with a copper tape or braided copper mesh shield. This shielding structure can effectively resist external electromagnetic interference, such as electromagnetic noise from nearby motors, inverters, and other equipment. It also prevents internal analog signals from radiating outward to avoid interference with other sensitive equipment. For example, in a factory floor with a large number of electrical equipment, this shielding feature can ensure stable transmission of analog signals in a complex electromagnetic environment.

Sheath material:

Sheathing is usually made of low-smoke, no-halogen (LSZH) material, which has good flame retardant properties and reduces the generation of harmful fumes in the event of a fire, in line with environmental and safety requirements. It is also resistant to abrasion, oil and chemical corrosion, and can protect the internal structure of the cable for a long time in the industrial environment.

Technical Parameters

Rated voltage:

The rated voltage is generally around 24V DC. This voltage level can meet the power supply requirements of most analog modules to ensure that the analog modules can work normally and provide stable power support for signal transmission.

Rated current:

Depending on the number of analog modules connected and the load characteristics, the current rating is usually between 0.5A - 1.5A. This ensures that the cable can provide sufficient power to multiple analog modules while avoiding damage to the cable or modules due to current overload.

Characteristic Impedance:

Characteristic impedance is typically around 50Ω or 75Ω, which matches the impedance of other devices and networks in the system. Impedance matching enables efficient transmission of analog signals, reduces signal reflection and attenuation, and improves the quality and reliability of signal transmission.

Signal transmission rate:

Capable of supporting high data transmission rates, often up to several Mbps or even higher. This makes it possible to transmit analog signals and related control instructions quickly and accurately, meeting the real-time and accuracy requirements of industrial automation control systems.

Functional Features

Compatibility:

Specially designed for ABB's analog modules, it has good compatibility with analog modules, PLCs, DCS systems, communication modules and other equipment in systems such as ABB Bailey Infi 90. This compatibility ensures the overall stability of the system and enables seamless connection and reliable communication between devices.

Anti-interference performance:

With its excellent shielding structure and materials, it has strong anti-interference capability. In industrial sites, electromagnetic interference generated by various electrical devices may affect the accuracy of analog signals, and this cable can effectively reduce these interferences and ensure the stable transmission of analog signals in complex electromagnetic environments.

Signal Stability:

The use of high-quality materials and fine manufacturing process makes the cable's electrical and mechanical properties stable. The attenuation during signal transmission is small, which can transmit signals stably for a long time and reduce signal loss and BER, thus improving the reliability of the whole system.

Installation and maintenance convenience:

Standardized interfaces and connections, such as BNC connectors, RJ45 connectors or other special connectors, are usually used. This standardized design makes the installation process simple and convenient, without the need for special tools. Moreover, it is easy to replace or add cables during system maintenance and expansion, which reduces the installation and maintenance cost of the system.

Application Areas

Industrial automation control system:

It is widely used in automation control systems in electric power, chemical industry, steel, paper making and other industrial fields. It is used to connect analog modules and other devices to realize the acquisition, transmission and control of analog signals such as temperature, pressure, flow, liquid level, etc. in the production process. For example, in chemical production, it can accurately transmit the temperature and pressure signals in the reactor to ensure the safety and stability of the production process.

Energy management system:

It plays an important role in the automated monitoring system of energy facilities such as power plants and substations. It can connect analog modules and various energy equipment, such as generators, transformers, switchgear, etc., to realize remote monitoring, control and management of energy equipment. For example, in a substation, analog signals such as voltage and current can be transmitted for monitoring the operating status of the power grid.

Intelligent building system:

It is also used in security systems, lighting systems, air-conditioning systems, etc. of intelligent buildings. It is used to connect analog modules and various intelligent devices, such as sensors, actuators, controllers, etc., to realize intelligent control and management of the system. For example, in the air conditioning system, analog signals of temperature and humidity can be transmitted for regulating the comfort of the indoor environment.