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ABB SPASO11 Analog Output Slave Module
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ABB SPASO11 Analog Output Slave Module

+86-15305925923
Mr.Wang
wang@kongjiangauto.com
SPASO11 Analog Output Slave Module
11657.00
¥8512.00
Weight:2.000KG
Quantity:
(Inventory: 2)
Consultation
Product parameters
  • Telephone:+86-15305925923
  • contacts:Mr.Wang
  • Email:wang@kongjiangauto.com
Description
SPASO11 Analog Output Slave Module

ABB SPASO11 Analog Output Slave Module

Overview

Product Definition and Function: The ABB SPASO11 Analog Output Slave Module is an important component designed by ABB for use in industrial automation control systems. Its main function is to receive digital control signals from the main controller (e.g. PLC, DCS system) and convert these signals into analogue output signals to accurately control the operation of external analogue devices (e.g. control valves, inverters, drives, etc.), such as controlling valve openings, motor speeds and so on.

Working Principle

Signal reception and processing: The module is connected to the main controller via a communication interface (e.g. Industrial Ethernet, Profibus or other fieldbus protocols) and receives digital control signals from the main controller. These digital signals are transmitted in the form of binary codes representing the desired analogue output values. The communication circuitry within the module decodes and buffers the received signals to ensure signal integrity and stability. The digital signals are then fed into the digital-to-analogue conversion (D/A) circuitry.

Digital-to-analogue conversion process: The D/A converter circuit is one of the core parts of the module. It takes the received digital signal and converts it into an analogue signal according to certain conversion rules. For example, a 12 - 16 bit D/A converter converts a digital signal into a corresponding analogue voltage or current signal. The conversion accuracy is usually high enough to accurately reproduce the analogue output value expected by the host controller. During the conversion process, the module refers to an internal reference voltage or current source to ensure the accuracy of the conversion.

Analogue Signal Output and Drive: The analogue signals after D/A conversion are output to external devices through output circuits. The output circuitry will perform appropriate conditioning of the analogue signal, such as amplification, filtering and other operations, to meet the signal requirements of the external device. For example, if the external device requires a voltage signal of 0 - 10V to control its operation, the module will condition the converted analogue signal to this range and provide sufficient drive capability to ensure that the external device can be driven efficiently. The module may also have short-circuit protection, overload protection, etc. to prevent damage to the module caused by external device failure.

Performance Features

High-precision analogue output: High precision in digital-to-analogue conversion and signal output, the D/A conversion accuracy can reach ±0.1% - ±0.5% full-scale accuracy, which enables it to accurately output analogue signals to meet industrial application scenarios requiring high control accuracy, such as precision chemical process control, high-precision motor speed regulation, and so on. For example, for a voltage output with a full scale of 10V, the error can be controlled between ±10mV - ±50mV.

Multi-channel output design: Typically has multiple analogue output channels, the number of channels may vary from 2 - 8 depending on the module type. This multi-channel design allows for simultaneous control of multiple external analogue devices, increasing the control flexibility and scalability of the system. For example, in a complex industrial automation system, a single module can be used to simultaneously control the opening of multiple control valves or the output frequency of multiple inverters, facilitating centralised management and control of multiple devices.

Fast response characteristics: able to achieve a fast signal response, from receiving the digital signal from the main controller to the output analogue signal changes, the response time is usually between a few milliseconds (ms) to tens of milliseconds. This fast response capability is very important for industrial application scenarios that require timely control (e.g., rapid adjustment of valve flow, emergency adjustment of motor speed, etc.), which ensures fast response and precise control of the system.

Electrical isolation and anti-interference ability: In the internal circuit design, focus on electrical isolation, the output channel and the module internal communication and control circuits usually have good electrical isolation measures between the isolation voltage can reach thousands of volts (kV). This can effectively prevent damage to the internal circuitry of the module caused by electrical faults in external equipment (such as short circuits, overvoltage, etc.), and also reduce the impact of external interference on signal transmission. In addition, the module also adopts anti-interference measures such as filtering in the signal output process to ensure the stability of the output analogue signal.

Technical Parameters

Input parameters (communication interface)

Supported communication protocols: It supports a variety of industrial communication protocols, such as Industrial Ethernet (Ethernet/IP), Profibus, Modbus, etc., to ensure good communication with different main controllers or control systems.

Communication rate: The communication rate varies depending on the protocol. For example, in industrial Ethernet communication, the communication rate can reach 10Mbps - 1000Mbps; in Profibus communication, the communication rate can reach 12Mbps - 100Mbps; in Modbus communication, the communication rate can vary from 9600bps - 115200bps.

Output Parameters

Number of output channels: the number of channels is generally 2 - 8, each channel can independently control an external analogue device.

Output signal type and range: The output signals are analogue signals, mainly including voltage signals and current signals. The output range of voltage signals may be 0 - 10V, - 10V - + 10V, 0 - 5V, etc. The output range of current signals may be 4 - 20mA, 0 - 20mA, etc. The specific output range depends on the configuration of the module and the requirements of the external devices.

Output Resolution: For analogue output signals, the resolution can reach 12 - 16 bits, which means that very fine analogue signal variations can be output, e.g. a voltage output with 16-bit resolution can divide the range of 0 - 10V into 65536 different levels.

Output Response Time: The response time is typically between 1ms - 50ms, depending on the specific configuration of the module and the external devices connected.

Electrical Isolation Parameters

Isolation Voltage: The isolation voltage between the output channels and the internal circuitry can reach 1kV - 5kV, effectively preventing electrical interference and fault propagation.

Physical Parameters

Dimensions: The external dimensions are generally designed according to the installation requirements and may range from 10cm - 20cm in length, 5cm - 10cm in width and 3cm - 8cm in thickness, making it easy to be mounted in the standard bay of the control cabinet or in the installation location of the equipment.

Weight: Light weight, usually between 100g - 500g, will not cause excessive burden on the overall weight and installation of the equipment.

Environmental parameters

Operating temperature range: can work in a wide range of temperature, generally - 20 ℃ - + 60 ℃, can adapt to different industrial site temperature conditions.

Humidity range: Relative humidity range is usually 10% - 90% (non-condensing), ensuring normal operation in different humidity environments.

Application Areas

Industrial automated production line control: In automated production lines, it is used to control the operation of various analogue devices. For example, it can control the speed of conveyor belt by outputting 0-10V voltage signal, or control the power of heating equipment by outputting 4-20mA current signal, so as to realise the automated operation of production line and precise control of process parameters.

Process control system: In chemical, pharmaceutical, food and beverage and other process control industries, it is used to control the opening of valves, pump flow and other operations. For example, in chemical production, according to the needs of the reaction process, the module outputs signals to control the openings of the feed and discharge valves, as well as the rotational speed of the reactor stirring motor, thus realising precise control of the production process.

Environmental control system: In the HVAC (heating, ventilation and air-conditioning) system of a building, it is used to control the compressor speed and fan airflow of the air-conditioning unit and other parameters. For example, by outputting analogue signals to adjust the cooling or heating capacity of the air conditioner, it achieves precise control of indoor temperature and humidity and improves the comfort and energy efficiency of the building.

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