My Cart
0 items
Genuine Automation Parts | Worldwide Express Delivery | 12-Month Warranty — [GET A QUOTE]
The SPASO11 is a high-precision analog output (AO) module engineered for ABB Symphony Plus and Harmony Rack (INFI 90) distributed control systems. It provides the critical interface between controller logic and field-side final control...
Availability: Low stock: 10 left
Reliable Worldwide Delivery
30-Day Money-Back Guarantee
Need more details? Read our fullShipping PolicyandRefund Policy.
The SPASO11 is a high-precision analog output (AO) module engineered for ABB Symphony Plus and Harmony Rack (INFI 90) distributed control systems. It provides the critical interface between controller logic and field-side final control elements, translating digital control commands into stable, high-accuracy analog signals for precise process regulation.
With a 14-channel high-density architecture, the SPASO11 is well suited for large-scale control applications where rack space efficiency and output reliability are essential. Each output channel is individually conditioned and galvanically isolated, protecting the system backplane from field-side electrical transients while maintaining signal integrity over long cable runs. This makes the module a dependable choice for continuous-duty utility and process automation environments.
| Parameter | Specification |
|---|---|
| Model Designation | SPASO11 |
| Module Type | Analog Output (AO) |
| Control System Family | Symphony Plus / Harmony Rack / INFI 90 |
| Output Channels | 14 isolated channels |
| Isolation | Galvanic isolation between outputs and system bus |
| Power Supply | Via Harmony rack backplane |
| Diagnostics | Front-panel LEDs for status and fault indication |
| Dimensions (H × W × D) | 358.14 × 271.78 × 73.66 mm |
| Net Weight | 0.3 kg |
The SPASO11 is typically deployed in closed-loop and supervisory control applications requiring stable, repeatable analog outputs, including:
Valve Control – Driving pneumatic or electric valve positioners in steam, feedwater, and process flow loops
Motor Speed Control – Supplying reference signals to VFDs for pumps, fans, and compressors
Signal Re-Transmission – Outputting process variables to recorders, analyzers, or third-party PLC systems
Its isolation and conditioning make it especially suitable for electrically noisy plant environments.
Does the SPASO11 support redundant configurations?
Yes. In Symphony Plus systems, the SPASO11 can be installed in redundant configurations when used with appropriate redundant termination units, ensuring output continuity in the event of a module failure.
Can voltage and current outputs be mixed on the same module?
The hardware supports both signal types, but the actual output mode is determined by the termination unit and wiring configuration. In practice, outputs are usually standardized by group to simplify commissioning and maintenance.
Is the SPASO11 compatible with legacy Bailey INFI 90 systems?
Yes. The SPASO11 is part of the Harmony/Symphony Plus evolution and is designed to coexist with or replace legacy INFI 90 analog output modules without requiring changes to field wiring.
