Description
ABB XVC768115 3BHB007211R115 is a 16 channel digital input/16 channel digital output hybrid I/O module launched by ABB for ACS880 frequency converters and UNITOL 5000 excitation systems. It belongs to the XVC768 series of embedded I/O boards and is positioned to provide high-capacity and high-density switch signal acquisition and output capabilities for variable frequency drive and excitation control systems. It is a key I/O expansion component that connects controllers and field devices in ABB’s compact automation control systems.
core positioning
ACS880 inverter dedicated 16DI/16DO expansion module, compatible with XVC768 series card slots of UNITOL 5000 excitation system, providing 32 independent switch channels, replacing multiple small capacity I/O modules for high-density deployment, reducing cabinet occupation and wiring costs.
ABB 3BHB007211R115 / XVC768115 Pulse Output Module
core functionality
In terms of digital input, it provides 16 independent digital input channels, supports 24V DC switch signal access, and is used to collect on-site switch status such as buttons, limit switches, proximity switches, relay contacts, and selection switches. All channels have electrical isolation, with an isolation voltage of 500V between channels, effectively preventing signal crosstalk. The input voltage range is 24V DC, with a response time of less than 10 milliseconds, meeting the requirements of fast logic acquisition. Built in wire breakage detection function, which can identify sensor wire breakage or fault and report it when the input signal is below 3.6mA.
In terms of digital output, it provides 16 independent digital output channels, supports transistor output, and is used to drive actuators such as indicator lights, solenoid valves, relay coils, alarm lights, etc. The output channel has short-circuit protection and overload protection functions to protect the equipment from circuit faults. Output voltage 24V DC, response time less than 10 milliseconds.
In terms of communication, as a local I/O, it is directly interconnected with ACS880 frequency converter controller or UNITOL 5000 excitation controller through a dedicated connector, without the need for additional communication protocol configuration. As a remote I/O, it can communicate with the controller through fieldbus and supports plug and play without additional configuration.
In terms of electrical parameters, the working power supply is 24V DC, with a power consumption of about 5W, and is powered by the controller or bus. All I/O channels have electrical isolation.
In terms of hardware, the external dimensions are approximately 100mm by 100mm by 60mm, with a net weight of about 0.5kg. It has an IP20 protection level and supports DIN rail installation. The working temperature ranges from negative 25 degrees Celsius to positive 60 degrees Celsius, and the wide temperature range can be selected from negative 40 degrees Celsius to positive 85 degrees Celsius. Obtained full EMC certification.
Application industry
In the power utility industry, on-site signal acquisition and equipment interlocking of frequency converters in substations and distribution networks under the State Grid Southern Power Grid. In the petroleum and petrochemical industry, the on/off control of variable frequency drives for oil pumps and compressors in the refining plants of PetroChina, Sinopec, and CNOOC. In the mining and metallurgical industry, the crushing stations and belt conveyors in non-ferrous and ferrous metal mines are interlocked with frequency converters for start-up. In the cement and building materials industry, monitoring the status of grinding machines and fan frequency converters for large cement groups such as Conch China Resources. Variable frequency control of medium voltage motors in the paper industry, pulp mills, and paper mills. Variable frequency control for pump stations and conveyor belts in the food and beverage industry, dairy beer and beverage factories. The frequency conversion control of ventilation fans and water supply and drainage pumps in the rail transit industry, subway and light rail. Constant pressure variable frequency control for municipal pump stations and water supply pipelines in the municipal engineering industry. Inverter switch quantity collection for renewable energy industry, wind farms, and photovoltaic power plants.
Usage scenario
Firstly, ACS880 frequency converter I/O expansion. Deploy XVC768115 in the ACS880 frequency converter control cabinet to collect the status of 16 on-site buttons, limit switches, and selection switches at once. After logical operation by the controller, drive the 16 execution mechanisms, replacing traditional hard wiring and reducing wiring. It is suitable for compact deployment in large frequency converter stations.
Secondly, interlocking control of belt conveyor. On the conveyor line of mines or cement plants, XVC768115 collects the start stop interlock and fault emergency stop logic of multiple motors, and 16 digital outputs drive motor contactors and alarm indicator lights to achieve centralized monitoring and control of multiple devices.
Thirdly, multi-point monitoring of constant pressure water supply. In the municipal pumping station, XVC768115 collects the pressure switch and liquid level switch status of multiple nodes in the pipeline network, and cooperates with ACS880 controller to achieve multi-point pressure balance control, which is more accurate than the single loop scheme.
Fourth, acquisition of excitation system switch values. In the UNITOL 5000 excitation controller, XVC768115 is connected to key switch quantities such as the auxiliary contacts of the generator circuit breaker, the status of the isolation switch, and the position of the grounding knife switch, providing real-time equipment status data for the AVR system.
Fifth, remote monitoring of unmanned pump rooms. In unmanned oil pump rooms or distribution rooms, XVC768115 is deployed as a local I/O node in the on-site operation box, and 32 switch signals are transmitted back to the ACS880 controller in the central control room through the bus, replacing a large number of point-to-point hard wiring.
Sixth, centralized monitoring of equipment status. 16 channel digital input collects motor operation status, valve opening and closing status, alarm signals, and 16 channel digital output drives start stop commands and alarm indicator lights, achieving centralized monitoring and control of multiple devices.
one-sentence summary
ABB XVC768115 3BHB007211R115 is a 16DI/16DO hybrid I/O module specifically designed for ACS880 frequency converters and UNITOL 5000 excitation systems. It features 32 channel independent acquisition, inter channel isolation, short-circuit overload protection, and disconnection detection as its core, supporting both local expansion and remote I/O deployment modes. It is widely used in industries such as power utilities, petroleum and petrochemical, mining and metallurgy, cement and building materials, papermaking, rail transportation, municipal water management, and renewable energy, covering core scenarios such as frequency converter I/O expansion, conveyor interlocking, constant pressure water supply monitoring, excitation switch quantity acquisition, pump room remote monitoring, and equipment status centralized management.
