ABB SPTPS02 Harmony Rack Speed Input Module
The ABB SPTPS02, also cataloged as the SPTPS02 Turbine Protection Slave Module, operates as a dedicated hardware component for turbine speed signal acquisition and hardware-level overspeed protection within ABB Harmony Rack Turbine Control platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | SPTPS02 |
| Brand | ABB |
| Origin | Sweden |
| Weight | 0.7 kg (1.5 lbs) |
| Dimensions | 35.6 cm x 2.5 cm x 38.1 cm (14.0 in x 1.0 in x 15.0 in) |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Power supplied via Harmony backplane |
| Input Channels | Dedicated turbine speed signal inputs |
| Protection Architecture | Two-out-of-three (2oo3) voting logic for overspeed shutdown |
| System Integration | Harmony Rack TP800 module framework |
| Successor Part | SPTPS13 |
Backplane Bus Communication Velocity & Firmware Flash Compatibility
The ABB SPTPS02 interfaces with the backplane to execute high-speed signal sampling and deterministic trip decisions. By processing frequency inputs directly at the I/O rack level, the module bypasses main controller scan latencies during critical overspeed events. Internal firmware flash compatibility maintains exact execution parameters, ensuring seamless function-code mapping and signal arbitration across the turbine protection bus.
Frequently Asked Questions
Q: How does the SPTPS02 process speed signals for critical overspeed trips?
A: The module executes a hardware-level two-out-of-three (2oo3) voting logic algorithm directly on incoming speed signals to initiate overspeed protection routines without relying on host CPU cycles.
Q: What is the recommended migration path for replacing legacy SPTPS02 modules?
A: ABB designates the SPTPS13 module as the functional successor, which modernizes the hardware footprint while preserving existing TPS-mode function-code structures in Harmony systems.
Q: How is physical power supplied to the module in a Harmony rack assembly?
A: Operating power is drawn directly from the backplane power rails when the module is fully seated into the designated TP800 rack slot.
Field Installation Guidelines
- Verify that the rack slot is completely de-energized or set to safe maintenance mode prior to inserting or extracting the SPTPS02 module.
- Align the circuit board edges precisely with the rack guide channels to avoid damaging rear connector pins during physical insertion.
- Maintain strict single-point shielding practices for incoming speed sensor cables to prevent electrical noise coupling from altering frequency measurements.
- Secure all retaining screws on the front panel to guarantee protective grounding frame continuity and lock the module against high-vibration environments.
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| Warranty | 12 Months |
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