ABB Bailey TPS02 Turbine Protection Slave Module INFI 90 / Symphony Plus

Product Description

The TPS02 (TPS02) is a safety-critical Turbine Protection Slave module engineered by ABB Bailey for the INFI 90 and Symphony Plus distributed control systems (DCS). Designed to function as a high-speed interface for emergency trip circuits, the TPS02 (TPS02) is essential for protecting steam and gas turbines from overspeed conditions and process faults.

Unlike standard I/O modules, the TPS02 (TPS02) utilizes a deterministic, hardware-level logic path. This allows it to bypass traditional system scan cycles and achieve sub-millisecond trip activation. It continuously monitors redundant speed sensor inputs and hardwired trip requests, driving high-integrity relay outputs to trigger shutdown solenoids or breaker coils. The TPS02 (TPS02) ensures maximum reliability by operating via the dedicated Slave Expander Bus (SEB), providing the deterministic performance required for SIL-rated safety environments.

Detailed Technical Specifications

The TPS02 is built for high-speed protective logic execution:

• Manufacturer: ABB (Bailey Controls)

• Model Number: TPS02

• System Compatibility: INFI 90 / Symphony Plus

• Module Type: Turbine Protection System (TPS) Slave

• Mounting: Single-slot occupancy in standard Module Mounting Unit (MMU)

• Power Requirement: +5 VDC @ 1.5A (Typical via backplane)

• Communication: Dedicated Slave Expander Bus (SEB)

• Input Channels: 2–4 Redundant overspeed detection inputs (AC/DC pulse/magnetic pickups)

• Logic Inputs: Multiple hardwired trip request inputs (Voltage-free or 24 VDC)

• Output Configuration: Solid-state drivers for fail-safe trip relays

• Logic Execution: Hardware-accelerated voting logic (e.g., 2oo3)

• Operating Temperature: 0°C to +70°C (32°F to 158°F)

• Isolation: Optical and transformer-based galvanic isolation

• Diagnostics: Power-up self-test, runtime watchdog timer, and SEB status reporting