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ꄶ Thermal
ABB SPASI23 16-Channel Analog Input Submodule
I. Product Overview
The ABB SPASI23 is a 16-channel analog input slave module in the ABB (formerly Bailey Controls) Symphony Plus Distributed Control System (DCS), compatible with INFI 90, Net 90, Symphony and other systems. This module is specifically designed for temperature and analog signal acquisition in industrial process control, supporting multiple input signal types, and is a core component for field signal processing in DCS systems.
The SPASI23 provides 16 isolated analog input channels, supporting direct connection of thermocouples (TC), Resistance Temperature Detectors (RTD), millivolt (mV) level signals, and high-level voltage/current signals. The module features channel-to-channel electrical isolation, effectively suppressing common-mode interference and ground loop effects. Conversion accuracy reaches ±0.1% of full scale, ensuring accurate and stable signal measurement. Operating voltage is 24V DC, typically used with the NTAI16-A termination unit (termination board), connected via prefabricated cables to achieve field signal termination and inter-module communication. Widely used in industrial process control fields such as power, petrochemical, metallurgy, paper, and water treatment.
II. Specifications
表格
| Parameter | Value |
|---|---|
| Brand | ABB (formerly Bailey Controls) |
| Model | SPASI23 |
| Product Type | Analog Input Submodule / Temperature Input Submodule |
| System Series | Symphony Plus / Harmony Rack / INFI 90 / Net 90 |
| Number of Channels | 16 channels |
| Input Signal Types | Thermocouple (TC), RTD, millivolt (mV), high-level voltage/current |
| Thermocouple Input Range | -200°C to +1800°C (Types B, E, J, K, N, R, S, T) |
| RTD Input Range | -200°C to +800°C (Pt100, Pt1000, Ni120, Cu50, Cu100) |
| Thermistor Input Range | -50°C to +150°C |
| Voltage Input Range | -10V to +10V DC |
| Current Input Range | 4mA to 20mA (or -20mA to +20mA) |
| Conversion Accuracy | ±0.1%FS (full scale) |
| Resolution | Contact via email for confirmation |
| Electrical Isolation | Channel-to-channel electrical isolation |
| Isolation Voltage | Contact via email for confirmation |
| Operating Voltage | 24V DC |
| Power Consumption | Contact via email for confirmation |
| Operating Temperature | Contact via email for confirmation |
| Storage Temperature | Contact via email for confirmation |
| Relative Humidity | Contact via email for confirmation |
| Compatible Termination Unit | NTAI16-A (typically used together) |
| Mounting | Rack mounting (Harmony Rack) |
| Applicable Standards | Contact via email for confirmation |
| Dimensions | Contact via email for confirmation |
| Weight | Contact via email for confirmation |
| Country of Origin | Contact via email for confirmation |
III. Product Features
- 16 isolated analog inputs supporting thermocouple, RTD, millivolt and high-level multiple signal types
- Conversion accuracy ±0.1% of full scale ensuring accurate and reliable signal measurement
- Supports multiple standard thermocouple types (B, E, J, K, N, R, S, T) and RTD types (Pt100, Pt1000, etc.)
- Channel-to-channel electrical isolation for effective common-mode interference and ground loop suppression
- 24V DC power supply compatible with industrial control system standard power
- Specifically designed for Symphony Plus/INFI 90 system for perfect compatibility
- Typically used with NTAI16-A termination board for convenient wiring
- Suitable for temperature and analog signal acquisition in power, petrochemical, metallurgy and other industrial process control
- Rack mounting with compact structure for easy system integration and expansion
- High reliability design adapting to harsh industrial environments
IV. Typical Applications
- Power industry: power plant DCS system temperature and analog signal acquisition
- Petrochemical: refining plant process control temperature measurement and signal processing
- Metallurgy: steel mill heating furnace and rolling mill temperature monitoring
- Paper industry: paper machine dryer section temperature control system
- Water treatment: wastewater treatment plant process parameter monitoring
- Cement industry: cement plant kiln temperature monitoring system
- Natural gas: gas pipeline station temperature and pressure monitoring
- Pharmaceutical: pharmaceutical production process temperature and environment monitoring
- Food and beverage: production process temperature control and monitoring
- HVAC: large building building temperature and environment monitoring system
V. Model Description
SPASI23 is the complete model number for the ABB (formerly Bailey Controls) Symphony Plus/INFI 90 system analog input submodule. Where:
- SPA: Symphony Plus Analog series prefix
- SI: Slave/Submodule
- 23: Model number
This module is typically installed in a Harmony Rack, communicating with the controller via the system bus. Field signals are connected through the NTAI16-A termination unit (termination board), then connected via prefabricated cables to the SPASI23 module for signal conditioning and A/D conversion.
For detailed wiring diagrams, compatible module models, system configuration solutions, and technical manuals for this model, please contact via email for confirmation. We will provide detailed technical documentation and technical support.
VI. Why Choose Us
- Professional channel supply, comprehensive model coverage across multiple brands of industrial spare parts
- Strict quality inspection process ensuring reliable product quality
- Professional engineering team providing technical support and selection consultation
- Quick response, efficient logistics, orders accepted
- Quality assurance, worry-free after-sales service
VII. FAQ
Q1: What type of module is the SPASI23?
A: The SPASI23 is a 16-channel analog input submodule in the ABB (formerly Bailey) Symphony Plus/INFI 90 DCS system, supporting the acquisition and processing of thermocouple, RTD, millivolt and high-level voltage/current signals.
Q2: What input signal types does this module support?
A: The SPASI23 supports thermocouples (Types B, E, J, K, N, R, S, T), Resistance Temperature Detectors RTD (Pt100, Pt1000, Ni120, Cu50, Cu100, etc.), millivolt level signals, and high-level voltage (-10V to +10V) and current (4-20mA) signals.
Q3: What termination board does the SPASI23 need to work with?
A: The SPASI23 is typically used with the NTAI16-A termination unit (termination board). Field signals are connected through the NTAI16-A, then connected via prefabricated cables to the SPASI23 module for signal processing.
Q4: Can you provide detailed wiring diagrams and system configuration solutions?
A: Yes. Please contact via email with your requirements, and we will provide detailed wiring diagrams, compatible module models, system configuration solutions, and technical support.
