ABB NTU-7A9/M0 Isolated Analog Input Module

ABB NTU-7A9/M0 Isolated Analog Input Module

Basic Information

Model and name: ‘NTU-7A9/M0’ is the model identification of the product, belongs to the isolation of analogue input module, mainly used in industrial automation control system, external analogue signal isolation, processing and transmission.

Series: The module belongs to ABB industrial automation control module series, this series also includes many other types of input and output modules, communication modules, etc., together constitute a complete industrial automation control system.

Application Scenario: In the chemical industry, electric power, pharmaceuticals, food processing and many other production process parameters of the strict requirements of the monitoring of industrial fields are widely used, can be connected to various types of analogue sensors, the collection of temperature, pressure, flow, and other physical quantities of the analogue signal.

Functional features

Analogue signal input function:

Multiple input channels: generally equipped with multiple analogue input channels, common 4-channel, 8-channel and other different configurations, can simultaneously receive multiple sensors output analogue signals, convenient for simultaneous monitoring of multiple physical quantities.

Signal type compatibility: Compatible with voltage signals such as 0-5V, 0-10V and current signals such as 0-20mA, 4-20mA, etc., which can be adapted to a variety of industrial sensors.

High-precision signal acquisition: It has high signal acquisition accuracy, usually between ±0.1%-±0.5% for voltage signals and ±0.2%-±0.6% for current signals, which ensures accurate measurement of industrial process parameters.

Signal isolation function:

Electrical isolation: provide strong electrical isolation, isolation voltage level is generally between 1500V-3000V AC, effectively preventing external electrical interference on the internal circuitry, while avoiding internal circuit failure damage to external equipment.

Signal isolation: Optocoupler isolation or transformer isolation and other technologies, cut off the electrical connection, prevent signal crosstalk, ensure the accuracy and stability of signal transmission.

Signal processing and transmission function:

Signal conditioning function: amplify, filter and other conditioning operations on the input analogue signal, amplify weak signals, remove noise and interference components, improve signal quality.

Signal Conversion and Transmission Format: Convert the processed analogue signals into a format suitable for industrial communication network transmission, such as through Profibus, Modbus and other industrial communication protocols, the digitised signals are transmitted to the upper controller or other control devices.

Technical Parameters

Electrical parameters:

Working voltage range: generally 18V-30V DC, adapt to the common power supply conditions in industrial sites.

Input signal range: covers the common voltage and current signal range, such as 0-5V, 0-10V voltage signal, 0-20mA, 4-20mA current signal and so on.

Power Consumption: Typically between a few watts and a dozen watts, depending on operating conditions and equipment design.

Performance parameters:

Acquisition accuracy: voltage signal acquisition accuracy of ±0.1%-±0.5%, current signal acquisition accuracy of ±0.2%-±0.6%, some products of the analogue - digital conversion of the signal resolution of up to 12 - 16 bits.

The number of input channels and configuration: the number of channels has 4 channels, 8 channels and other options, the channel configuration can be independent or grouped to meet different application requirements.

Environmental parameters:

Operating temperature range: generally - 20 ℃ - +70 ℃ or so, some high-performance products to support a wider temperature range, can adapt to a variety of industrial environments.

Humidity range: 5%-95% relative humidity (non-condensing), stable operation in humid environments.

Protection level: Usually with IP20 or higher protection level, to prevent the intrusion of foreign objects and personnel accidental contact with the internal circuitry.