ABB NTU-7/6/48S1 Digital Input Termination Unit

ABB NTU-7/6/48S1 Digital Input Termination Unit

Basic Information

Model Meaning: ‘NTU-7/6/48S1’ is the specific model number of the product, where ‘NTU’ stands for Digital Input Terminal Unit, ‘7/6’ and so on may represent a specific series or functional distinction, ‘48’ may be related to the number of input channels or other technical parameters, ‘S1’ may indicate a version or a specific configuration. where ‘NTU’ stands for Digital Input Terminal Unit, ‘7/6’ etc. may represent a specific series or functional distinction, ‘48’ may be related to the number of input channels or other technical parameters, ‘S1’ may denote a version or a specific configuration, etc.

Series: belongs to ABB Bailey Infi 90 series, this series is ABB company for industrial automation control system launched a set of high-performance, distributed control system, widely used in electric power, chemical industry, metallurgy, paper and other industries in the field of automation control.

Place of origin and availability: the product originated in Sweden, from some suppliers can be enquired to have a certain amount of stock, the supply cycle is generally 3-5 days.

Functional characteristics

Signal Acquisition: With 48 digital input channels, it can acquire multiple digital signals at the same time, and can receive dry contact signals and active signals, such as 24V DC, 48V DC and other digital level signals of different voltage levels, to meet the signal access requirements of a variety of digital sensors and devices in the industrial field.

Signal Processing: Logical judgement and processing of the collected digital signals, such as the implementation of the signal with, or, or non-logical operations, according to the preset logical conditions of the input signals for the combination of judgement, the output of the corresponding control signals, to achieve the complex control logic function.

Electrical isolation: electrical isolation technology is adopted between the input channel and the internal circuit, and the isolation voltage can reach thousands of volts, which effectively prevents the influence of external interference signals on the system, improves the stability and reliability of the system, and guarantees the safety of the equipment and the operators at the same time.

Status Indication: Equipped with status indicator, it can intuitively display the signal status of each input channel, which is convenient for on-site maintenance personnel to quickly understand the operation of the equipment, and discover the fault points in time and carry out maintenance.

Technical parameters

Power requirements: the working voltage is generally DC voltage, the range is about 18V-30V DC, the typical working current varies according to different working conditions, but generally within a few hundred milliamps.

Input Signal Range: For dry contact signals, the external power supply voltage range is wide, usually between 5V-30V DC; for active signals, it can adapt to a variety of voltage ranges, such as TTL levels, CMOS levels and industrial standard 24V DC signals, etc., and the input current ranges from a few milliamps to tens of milliamps.

Response Time: Typical response times are between microseconds and milliseconds, enabling fast acquisition and processing of input signals to ensure that the control system obtains the latest state of the equipment in a timely manner and achieves fast response and precise control.

Operating temperature range: usually in the - 20 ℃ - + 70 ℃ or so, some high-performance products may support a wider temperature range, can adapt to a variety of harsh industrial field environment.

Protection level: generally with IP20 or higher protection level, to prevent the intrusion of foreign objects into the equipment, while avoiding accidental contact with the internal circuitry, to ensure the safe operation of the equipment in the industrial environment.

Application Areas

Industrial automated production line: In automated production lines such as automotive manufacturing, machining, electronic assembly, etc., it is used to collect signals of the running status of the equipment, such as the start/stop signal of the motor, the signal of the position sensor of the conveyor belt, the signal of the working status of the robots, etc., so as to realise the centralized monitoring and automated control of the equipment in the production line.

Process control system: In the process control system of chemical industry, pharmaceutical industry and metallurgy industry, it is used to collect the monitoring signals of various process parameters, such as the temperature alarm signal of the reaction kettle, the switching status signal of the valve, and the running signal of the stirring motor, etc., to provide real-time information of the production process for the operators, and to ensure the safety and stability of the production process.

Intelligent building system: In the heating, ventilation and air conditioning (HVAC) system, lighting system and lift system of an intelligent building, it collects the status signals of the equipment, such as the run/stop signals of the air conditioning unit, the switching status signals of the lighting fixtures and the floor position signals of the lift, etc., so as to achieve the centralised monitoring and management of the building equipment, and to enhance the efficiency of the use of energy and the comfort level.