Product Description

Overview

The ABB SPASO11 is a precision Analog Slave Output Module designed for the Symphony Plus (S+ HR) and Harmony (INFI 90) control systems. It converts digital commands from a Master Controller into accurate analog output signals to control field devices such as actuators, control valves, and recorders, ensuring stable and reliable process performance in industrial applications.

Technical Specifications

Functional Highlights

• High-Density Output: 14 analog channels per module maximize rack efficiency while supporting high-point-count systems.

• Output Monitoring: Integrated readback functionality allows the system to verify actual current delivered to field devices, ensuring signal integrity.

• Fail-Safe Operation: Outputs can be configured to hold the last value or default to zero in case of communication loss, preventing process disruption.

• Front-Panel Diagnostics: STATUS LED provides immediate feedback on module health; error codes can be sent to the operator station for troubleshooting.

• Galvanic Protection: Protects module electronics from electrical surges and ground loops common in industrial environments.

Installation Note

Each SPASO11 requires a unique address set via onboard dip-switches for proper communication on the I/O expander bus. Ensure a stable 24 VDC field power supply to maintain full loop drive capability across all 14 channels.

Applications

• Precision control of valves and actuators in process control

• Industrial recording and monitoring of field devices

• Expansion of Symphony Plus or Harmony analog output capacity

• Suitable for chemical, water treatment, power generation, and oil & gas control loops

FAQ

Q: How many channels does the SPASO11 provide?
A: 14 independent analog output channels.

Q: What signal types are supported?
A: 4–20 mA DC current loops and 1–5 VDC voltage outputs.

Q: Can the outputs fail safe?
A: Yes, outputs can be configured to hold the last value or go to zero on communication loss.