• PN: NAIO-03
• Brand: ABB
• Type: Analog I/O Extension Module

• Function: Specialized analog expansion accessory for ABB ACS800 series inverters, expands analog signal acquisition and output channels. Collects pressure, temperature, flow and other analog sensor signals, outputs analog control signals to execute field actuators, realizes closed-loop process regulation for drive equipment, and communicates with main controller via RS485 Modbus RTU bus.

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Core Features

1. Multi-channel analog signal acquisition and output, compatible with ±10V voltage and 4-20mA current signals
2. 16-bit high-precision signal conversion, measurement accuracy up to ±0.1% full scale, stable data collection
3. RS485 communication interface supporting Modbus RTU protocol, convenient for networking with PLC and SCADA systems
4. Channel electrical isolation design, effectively suppresses industrial electromagnetic interference and avoids signal crosstalk
5. DIN rail compact installation structure, small size, easy to install in control cabinet

6. Front panel status indicator lights for quick judgment of power, communication and channel fault status

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Technical Specs

• Analog Channels: 4 analog inputs + 4 analog outputs
• Signal Range: ±10V, 4-20mA
• Resolution: 16-bit
• Communication: RS485 Modbus RTU
• Power Supply: 24VDC ±10%
• Power Consumption: ≤5W
• Operating Temperature: -25℃ ~ +70℃
• Protection Grade: IP20
• Net Weight: 0.3kg
• HS Code: 8538900000

• Certification: CE, UL certified

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Compatibility

• Matched Equipment: ABB ACS800 series frequency converters
• Compatible Systems: ABB AC500 PLC, third-party PLC, DCS and SCADA monitoring platforms
• Supported Sensors: Pressure, temperature, flow, displacement analog transmitters

• Not Compatible: ABB INFI90, Symphony DCS rack backplane

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Application

• Closed-loop speed and process control for fans, pumps, compressors and conveyor drive systems
• On-site analog signal expansion for metallurgy, chemical, water treatment and power plant automation projects
• Old inverter system renovation, I/O channel expansion and faulty module spare replacement

• Precise process parameter monitoring and automatic regulation of industrial production lines

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Our Advantage

• Signal accuracy test, insulation withstand test and communication aging test completed before delivery
• 12-month warranty for new original and fully tested surplus modules