ABB DAO01

Technical Parameters

Signal output range 

Current output

ABB DAO01 can support standard current output ranges of 0-20 mA or 4-20 mA for free. This output method has strong noise immunity and is therefore most suitable for long-distance signal transmission. The signal can pass through complex industrial environments during a long transmission process to ensure accurate arrival at the target device. For precision control tasks in industrial processes such as chemical production, very fine and accurate current output can achieve precise control of valve opening.

Voltage output

ABB DAO01 can provide ±10 V voltage output. Voltage output has advantages in some occasions where high precision and short transmission distance are required. Voltage output is valuable in applications such as controlling equipment in laboratories or controlling motor speed in very close settings, and supports all devices that require analog voltage signals.

Number of output channels

It has multiple independent output channels, the specified number is [X]. Multiple channels allow the module to drive various devices at the same time, or control different parameters of a device at the same time, improving the integration and control efficiency within the system. For example, in an automated water treatment plant, the speed of multiple pumps and the opening of multiple valves can be controlled simultaneously.

Resolution and accuracy

Resolution

Although the resolution of ABB DAO01 is very high, the digital-to-analog conversion capability is very good. Resolution: Its resolution can reach [specific resolution value], so the digital signal can be divided into very small increments for analog output, achieving fine control of the output signal. 

Accuracy

When the output signal is generated within the entire range, the output accuracy can reach ± [specific accuracy value]%. High-precision output ensures the accuracy of the control signal and reduces control errors. It can meet the high-precision control requirements of some production processes, such as the control of raw materials in the pharmaceutical industry.

Load capacity

For current output, each channel of ABB DAO01 has a load range of [specific load range] and can drive a load of [specific load resistance range]. For voltage output, there is a matching load capacity to ensure that the module outputs a stable signal when connected to various external devices that require loads, and is not damaged due to signal distortion or excessive module load.

Working principle

When the digital signal generated by the control system is sent to the ABB DAO01 module through the data bus, the digital-to-analog conversion circuit in the module will receive these digital signals and convert them into corresponding analog current or voltage signals according to the pre-set conversion algorithm and parameters. These analog signals are output to external devices through the output terminal to control various devices. The module is equipped with a feedback and calibration mechanism to monitor the output signal in real time and make necessary adjustments to ensure the accuracy of the output signal.

Features

High reliability and durability: ABB DAO01 inherits the reliable genes of the ABB brand, can operate stably in harsh industrial environments, effectively ensure the continuity of the control system and reduce unexpected downtime.

Accurate signal output capability: The core function of this module lies in its accurate analog signal generation and control capabilities. ABB DAO01 can output the required current or voltage signals with high precision, ensuring the precise regulation of actuators such as valves and frequency converters, and meeting the stringent process control accuracy requirements.

Wide system compatibility: ABB DAO01 is designed with excellent compatibility and can be seamlessly integrated with ABB's various series of programmable logic controllers (such as the AC500 series). It also supports effective connection with other third-party control system devices that comply with mainstream industrial communication protocols.

Application scenarios

In chemical production, accurately adjust the temperature control valve of the reactor.

In the power system, stably control the pressure switch of the boiler pipeline.

In the metallurgical process, accurately manage the flow control valve of the cooling water circuit.

Used in water treatment to adjust the amount of chemical agents added in the acid-base neutralization process.

In manufacturing production lines, control the operating speed of the inverter-driven motor.

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