ABB SPASI23 Isolated Analog Input Module – Harmony Rack I/O, 16-Channel
ABB SPASI23 is an isolated analog input module for the Harmony rack I/O system. It handles up to 16 independently configured analog inputs and supports thermocouple, millivolt, RTD, and high-level signals.
The module performs A/D conversion, signal correction, calibration, cold-junction compensation, and engineering-unit conversion for supported inputs.
Technical Specifications
| Manufacturer | ABB |
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| Part Number | SPASI23 |
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| Product Type | Isolated Analog Input Module |
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| System | Symphony™ Enterprise Management and Control System / Harmony rack I/O |
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| Channels | 16 analog inputs |
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| A/D Resolution | 24-bit |
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| Input Types | High-level, mV, thermocouple, 3-wire RTD |
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| High-Level Ranges | 1-5 V, 0-5 V, 0-10 V, -10 to +10 V |
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| mV Ranges | -100 to +100 mV; 0-100 mV |
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| Thermocouples | B, E, J, K, L, N, R, S, T, U and documented regional variants |
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| RTD | 3-wire RTD configurations including platinum, nickel, and copper types |
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| Power | +5 VDC ±5%, 500 mA typical |
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| Operating Temperature | 0 to 70 °C |
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System Compatibility
Original-System Compatibility
SPASI23 is designed for Harmony rack I/O within the Symphony™ Enterprise Management and Control System.
Historical Replacement
According to the ABB SPASI23 Analog Input Module User Manual (Document No. 2VAA001604), SPASI23 is documented as a replacement for SPASI03 and SPASI13. The manual also documents its relationship with IMASI23 for INFI 90 systems.
Applications & Maintenance
SPASI23 is used to acquire temperature, millivolt, and voltage signals in Harmony-based control systems.
Common maintenance scenarios include input signal faults, incorrect readings, configuration issues, and module replacement. The ABB manual includes troubleshooting and replacement procedures.
Installation Guidelines
Before installation, verify the module address, jumper settings, I/O expander-bus dipshunts, and termination-unit configuration.
For SPASI03/SPASI13 replacement, check the required resolution settings and power-supply capacity before commissioning.
Maintenance Procedures
The ABB manual covers troubleshooting, preventive maintenance, module inspection, repair, replacement, and installation checks.
Maintenance should be performed by qualified personnel following applicable system safety procedures.
Associated Hardware
NTAI06 is the documented analog input termination unit associated with the ASI/SPASI analog input module, providing field signal termination for the 16 input channels.
The installation documentation also covers the associated cable and termination arrangements used with the module.
Frequently Asked Questions
What does SPASI23 delivery and warranty service include?
Testing, protective packaging, DOA support, return or replacement handling, and warranty coverage can be arranged according to the agreed order terms.
What information is needed for an SPASI23 RFQ?
Please provide Part Number, Quantity, Destination, Required Date, and Machine/System Model.
Is SPASI23 a replacement for earlier ASI modules?
The documentation identifies replacement relationships with SPASI03 and SPASI13 and documents its relationship with IMASI23. Configuration requirements should be checked before replacement.
What should be checked before installing a replacement?
Verify the module address, jumper settings, I/O expander-bus configuration, termination-unit settings, and controller configuration.
Is the termination unit included with SPASI23?
The NTAI06 is documented as associated termination hardware. Whether it is included in an order depends on the supplied part and quotation.
Available Inventory Models
Note: These models are listed as available inventory only and are not official or compatible replacement models for SPASI23.
- 5CFCRD.4096-04
- 5CFCRD.4096-06
- 5CFCRD.8192-04
- 5DLSD4.1001-00
- 5DLSDL.1000-00
- 5LS182.6-2
- 5LS187.61
- 5LS189.6
- 5LS189.6-1
- 5MP7150.101E-000
- 5PC511.SX01-00
- 5PC600
- 5PC600.E855-02
- 5PC600.E855-03
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