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ABB Bailey TPS02 Turbine Protection Slave Module

The ABB Bailey TPS02, also cataloged as the TPS02 Turbine Protection Slave Module, operates as a dedicated hardware component for high-speed emergency trip circuit execution within INFI 90 and Symphony Plus distributed control systems.

Hardware Specifications

Parameter Specification
Model TPS02
Brand ABB Bailey
Origin USA / Germany
Weight 0.85 kg
Dimensions Standard MMU single-slot
Operating Temp 0 deg C to 70 deg C
Power Consumption 7.5 W (5 VDC at 1.5 A)
System Compatibility INFI 90 / Symphony Plus
Logic Execution Hardware-accelerated 2oo3 voting

Safety Instrumentated System (SIS) Integrity

The ABB Bailey TPS02 architecture supports fail-safe state execution through integrated optical and transformer-based galvanic isolation, ensuring that field-side transients do not propagate to the control-layer bus. The module utilizes a triple modular redundancy (TMR) 2oo3 architecture to maintain continuous protection, even in the event of a single-point hardware failure within the detection circuitry. High-integrity relay outputs are driven by internal watchdog-monitored logic, ensuring the module defaults to a tripped state upon detection of internal logic inconsistencies or loss of the Slave Expander Bus (SEB) heartbeat.

Frequently Asked Questions

Q: Does the TPS02 support online diagnostic monitoring of the trip circuits?

A: Yes. The module performs continuous power-up self-tests and runtime watchdog monitoring. Status reporting is communicated directly to the master controller via the Slave Expander Bus (SEB), allowing for real-time visibility of hardware health.

Q: Is this module compatible with existing INFI 90 cabinet configurations?

A: Yes, the module is designed for single-slot occupancy in a standard Module Mounting Unit (MMU). Ensure that the SEB backplane connections are free of oxidation to prevent communication jitter.

Field Installation Guidelines

  1. Mounting: Insert the module into the designated MMU slot. Confirm the module is fully seated to ensure the SEB backplane pins have established firm contact.
  2. Wiring: All magnetic pickup inputs must be wired using twisted-shielded pair cabling. Connect the shield to the cabinet earth ground at the entry point to minimize induction of noise onto the high-speed input channels.
  3. Configuration: Verify that all hardware-level trip request jumpers are set according to the specific site logic documentation prior to energizing the module.
  4. Testing: Perform a loop check for the trip solenoids with the turbine in a decommissioned state to verify that the relay outputs correctly trigger the external shutdown devices upon a simulated 2oo3 logic trip command.

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